Subatomic particle location charge mass
|
|
- Wendy Copeland
- 5 years ago
- Views:
Transcription
1 verview of subatomic particles Subatomic particle location charge mass proton (p + ) nucleus 1+ 1 amu (g/mol) Neutron (n 0 ) nucleus 0 1 amu (g/mol) Electron (e - ) Electron could in energy levels 1-0 amu (g/mol) Amu- atomic mass unit For Funzies: Actual mass of subatomic particles: Proton: g = x g = 1 amu Neutron: g = x g = 1 amu Electron: = x 10-2 g = ~0 amu Isotopes An isotope is an atom with the same number of protons (therefore the same element) but has a different number of neutrons and therefore a different mass number (i.e. hydrogen-1 vs. hydrogen-2; the first hydrogen has a mass of 1 amu and the second hydrogen has a mass of 2 amu) o Boron-10 vs boron-11 Symbol way to write out isotopes: ex #1: This isotope of sulfur has a mass of 34 amu and its atomic number/number of protons is 16. Total mass= protons + neutrons
2 In order to find the number of neutrons subtract the total mass from the number of protons. For the example above (34-16) so there are 1 neutrons. Ex #2: 16 Mass # (protons + neutrons) Atomic # (protons) 1 This isotope of oxygen would be named oxygen-16. The atom would have neutrons (16-=). This isotope of oxygen would be named oxygen-1. The atom would have 10 neutrons (1-=10). *to name an isotope you write the name followed by a hyphen (-) and the mass number. Forces within the atom Strong Nuclear Force: Independent of charge neutrons keep protons together in nucleus Very short distance In nucleus Strongest force Electrostatic Force: Dependent of charge protons and electrons attract one another (attractive force) electrons repel one another (repulsive force) Protons repel one another (repulsive force) Long distance From nucleus to all electrons in electron cloud Weak force Finding the average atomic mass of an atom- this is the mass on the periodic table (takes all isotopes into account; some isotopes are more abundant than others so we must find the weighted average). (mass of isotope #1)(% abundance as a decimal) + (mass of isotope #2)(% abundance as a decimal) = average atomic mass ex: An element has two naturally occurring isotopes. Isotope #1 has a mass of amu and it has a relative abundance of 19.9%, isotope #1 has a mass of
3 amu and it has a relative abundance of 0.1%. What is the identity of the element? ( amu)(0.199) + ( amu)(0.01) = amu which is the average mass of boron (find on the periodic table) Find the percent abundances from the isotope masses. Ex: Hydrogen has 2 isotopes; Hydrogen-1 ( amu) & hydrogen-2 ( amu). Find the percent abundance for each isotope. o Set up the equation like normal except we do not know the percent abundances so we must plug in variables. We do know that they are not equal to each other so we must plug in 2 different variables. o Find the average atomic mass on the periodic table. ( amu)x + ( amu)y = amu h no! There are two variables! Remember that the percent abundances have to add up to 100%. 100% as a decimal is 1 (because 100%/100%=1). Therefore, we know that x + y = 1. Now we can solve for y, y = 1 x. We can substitute that into our original equation: ( amu)x + ( amu)(1-x) = amu The rest is just algebra. You should end up with x= Multiply my 100% to make it into a percent, so x100%= 99.99%. When the problem was set up x was with the first isotope, so that is the percent abundance we found. To find the percent abundance for isotope #2 100% %= 0.01%. Answer: Isotope # % Isotope #2 0.01%
4 Spanish Version Resumen de las partículas subatómicas Subatomic particle location charge mass proton (p + ) nucleus 1+ 1 amu (g/mol) Neutron (n 0 ) nucleus 0 1 amu (g/mol) Electron (e - ) Electron could in energy levels 1-0 amu (g/mol) Unidad de masa atómica Para Funzies: Masa real de partículas subatómicas: Proton: 0, g = 1,672 x g = 1 amu Neutrón: 0, g = 1,674 x g = 1 amu Electrón: = x 10-2g = ~ 0 amu isótopos Un isótopo es un átomo con el mismo número de protones (por lo tanto el mismo elemento) pero tiene un número diferente de neutrones y por lo tanto un número de masa diferente (es decir, hidrógeno-1 frente a hidrógeno-2, el primer hidrógeno tiene una masa de 1 amu y el segundo hidrógeno tiene una masa de 2 amu) o Boron-10 vs boron-11 Símbolo para escribir isótopos: ex #1: Este isótopo de azufre tiene una masa de 34 amu y su número atómico / número de protones es 16.
5 Masa total = protones + neutrones Con el fin de encontrar el número de neutrones sustraer la masa total del número de protones. Para el ejemplo anterior (34-16), hay 1 neutrones. Ex #2: 16 Mass # (protons + neutrons) Atomic # (protons) 1 Este isótopo de oxígeno sería llamado oxígeno-16. El átomo tendría neutrones (16- = ). Este isótopo de oxígeno sería llamado oxígeno-1. El átomo tendría 10 neutrones (1- = 10). * para nombrar un isótopo, escriba el nombre seguido de un guión (-) y el número de masa. Fuerzas dentro del átomo Fuerza nuclear fuerte: Independiente de cargo neutrones mantienen los protones juntos en el núcleo Distancia muy corta En el núcleo Fuerza más fuerte Fuerza electro-estática: Dependiente de cargo protones y electrones se atraen entre sí (fuerza de atracción) los electrones se repelen entre sí (fuerza repulsiva) Los protones se repelen entre sí (fuerza repulsiva) Larga distancia Del núcleo a todos los electrones en la nube de electrones Fuerza débil Determinación de la masa atómica media de un átomo: es la masa de la tabla periódica (toma todos los isótopos en cuenta, algunos isótopos son más abundantes que otros, así que debemos encontrar la media ponderada). (masa de isótopo # 1) (% de abundancia como un decimal) + (masa de isótopo # 2) (% de abundancia como un decimal) = masa atómica media
6 ej: Un elemento tiene dos isótopos de origen natural. El isótopo # 1 tiene una masa de amu y tiene una abundancia relativa de 19.9%, el isótopo # 1 tiene una masa de amu y tiene una abundancia relativa de 0.1%. Cuál es la identidad del elemento? ( amu) (0.199) + ( amu) (0.01) = amu que es la masa media de boro (encontrar en la tabla periódica) Encuentre el porcentaje de abundancia de las masas isotópicas. Ejemplo: El hidrógeno tiene 2 isótopos; Hidrógeno - 1 (1,00725 amu) e hidrógeno - 2 (2, amu). Encuentre el porcentaje de abundancia para cada isótopo. o Establecer la ecuación como normal, excepto que no sabemos el porcentaje de abundancias por lo que debemos conectar las variables. Sabemos que no son iguales entre sí, así que debemos conectar 2 variables diferentes. o Encuentre la masa atómica promedio en la tabla periódica. (1,00725 amu) x + (2, amu) y = 1,00794 amu h no! Hay dos variables! Recuerde que el porcentaje de abundancia tiene que llegar hasta el 100%. 100% como decimal es 1 (porque 100% / 100% = 1). Por lo tanto, sabemos que x + y = 1. Ahora podemos resolver para y, y = 1 - x. Podemos sustituir eso en nuestra ecuación original: (1,00725 amu) x + (2, amu) (1 - x) = 1,00794 amu El resto es álgebra. Usted debe terminar con x = Multiplicar mi 100% para convertirlo en un porcentaje, por lo que 0,9999x100% = 99,99%. Cuando se estableció el problema x fue con el primer isótopo, por lo que es el porcentaje de abundancia que encontramos. Para encontrar el porcentaje de abundancia para el isótopo # 2 100% - 99,99% = 0,01%. Responder: Isótopo # 1 99,99% Isótopo # 2 0,01%
[3.2] The Atom. p in Textbook
[3.2] The Atom p. 145 149 in Textbook We will be learning about three different parts of the atom today 1. What makes up an atom 2. Where an atom s mass is found 3. What are isotopes What does the atom
More informationChapter 3. Atomic Number. Atomic Number. Section 3. Atoms of different elements have different numbers of protons.
Section 3 Atomic Number Atoms of different elements have different numbers of protons. Atoms of the same element all have the same number of protons. The atomic number (Z) of an element is the number of
More informationAtomic Number. Mass Number. Counting Subatomic Particles
Counting Subatomic Particles Now that scientists have discovered that atoms can be subdivided into subatomic particles, there was a new problem. How do we count subatomic particles? We use terms like atomic
More informationAlgebra I Aim: How do we determine the equation of a function from its graph? HW: "Vacations" Worksheet
Algebra I HW: "Vacations" Worksheet DO NOW 1) Name three points on the line graphed below Nombre tres puntos en la línea graficada por debajo 2) Write the equation (function rule) for the line Escribir
More informationATOMS. 1. DALTON'S ATOMIC THEORY. Modelos atómicos
ATOMS An atom is the smallest particle of any element that still retains the characteristics of that element. However, atoms consist of even smaller particles. 1. DALTON'S ATOMIC THEORY. Modelos atómicos
More informationIsotopes are different forms of the that have a. Isotopes of the same element have the but. Ions are atoms that have a. In an ion, the.
Chemistry Ms. Ye Name Date Block Atomic Structure: 1. What is important about the atomic number? 2. How do you figure out the number of a. Protons in an atom? b. Electrons in an atom? c. Neutrons in an
More informationWarm-Up Topic: Air Masses & Weather Fronts
Warm-Up Topic: Air Masses & Weather Fronts 1. What type of cloud is made mostly of ice crystals? 2. The average temperature last week was 50 F, is this an example of weather or climate? 3. What is the
More informationAtoms have two separate parts. The nucleus and the electron cloud.
Name Ch. 5 - Atomic Structure Pre-AP Modern Atomic Theory All atoms are made of three subatomic (smaller than the atom) particles: the protons, the electrons and the neutrons. (P.E.N. s) There are particles
More informationAtomic Structure. Atomic Notation. Atomic Notation. Atomic Notation. Section 3.3 Distinguishing Between Atoms. Atomic Notation
Atomic Structure Section 3.3 Distinguishing Between Atoms OBJECTIVES: Explain how the atomic number identifies an element. Use the atomic number and mass number of an element to find the numbers of protons,
More informationElectricity and Magnetism
Electricity and Magnetism Electricity and magnetism have been known for thousands of years The ancient Greeks knew that a piece of amber rubbed with fur would attract small, light objects The word for
More informationEarly Atomic Theory and Structure
Early Atomic Theory and Structure Chapter 5 Hein and Arena Version 1.1 Eugene Passer Chemistry Department Bronx Community 1 College John Wiley and Sons, Inc The Atom and its Subatomic Particles The atom
More informationUnderstanding Atomic Mass
Understanding Atomic Mass What does a deck cards and the atomic mass on the periodic table have in common.? Let s Review Significant Figures and Digits All numbered digits are significant. i.e. 632 g =
More informationMATE EXAMEN FINAL
MATE7 - EXAMEN FINAL Apellidos Nombre: Instrucciones. Seleccione la alternativa que corresponde a la respuesta del problema. Encunetre el valor de la función. ) Let f() = 5. Find f(). A) 5 B) 5 C)5 D)
More informationAverage Atomic Mass: How are the masses on the periodic table determined?
Chemistry Ms. Ye Name Date Block Average Atomic Mass: How are the masses on the periodic table determined? Most elements have more than one naturally occurring isotope. As you learned previously, the atoms
More informationUNIT 3: POLYNOMIALS AND ALGEBRAIC FRACTIONS. A polynomial is an algebraic expression that consists of a sum of several monomials. x n 1...
UNIT 3: POLYNOMIALS AND ALGEBRAIC FRACTIONS. Polynomials: A polynomial is an algebraic expression that consists of a sum of several monomials. Remember that a monomial is an algebraic expression as ax
More informationIsotopes and Radioactive Decay
NAME PERIOD DATE CHAPTER 4 NOTES: ISOTOPES Isotopes and Radioactive Decay ISOTOPES: Atoms that contain the same number of protons but a different number of neutrons. Isotopes containing more neutrons have
More informationA note on inertial motion
Atmósfera (24) 183-19 A note on inertial motion A. WIIN-NIELSEN The Collstrop Foundation, H. C. Andersens Blvd. 37, 5th, DK 1553, Copenhagen V, Denmark Received January 13, 23; accepted January 1, 24 RESUMEN
More informationTitle: Chem Review 2 TOPIC: DISCOVERY OF ATOM
Title: Chem Review 2 TOPIC: DISCOVERY OF ATOM EQ: How were the 3 subatomic particles discovered? Title and Highlight Topic: EQ: Date Reflect Question: Reflect on the material by asking a question (its
More informationDear Family, Sincerely, Your child s teacher. Family Letter. Content Overview
Family Letter Content Overview Dear Family, Your child has experience with fractions through measurements and in previous grades. Unit of Math Expressions builds on this experience. The main goals of this
More informationk + ln x 2, para x 0, k, en el punto en que x = 2, tiene la 1. La normal a la curva y = x
1 1. La normal a la curva = k + ln, para 0, k, en el punto en que =, tiene la ecuación 3 + = b,donde b. halle eactamente el valor de k. Answer:...... (Total 6 puntos).. Sea f la function,tal que, f ( )
More informationWhat is a theory? An organized system of accepted knowledge that applies in a variety of circumstances to explain a specific set of phenomena
Atomic Structure What is a theory? An organized system of accepted knowledge that applies in a variety of circumstances to explain a specific set of phenomena Early Theories Democritus: 4 B.C.: atom He
More informationChapter 2 Atoms and Elements. 2.4 The Atom
Chapter 2 Atoms and Elements 2.4 The Atom Atoms Dalton s Atomic Theory Are tiny particles of matter. Of an element are similar and different from other elements. Of two or more different elements combine
More informationChapter 3 https://youtu.be/thndxfdkzzs?list=pl8dpuualjx tphzzyuwy6fyeax9mqq8ogr
Chapter 3 https://youtu.be/thndxfdkzzs?list=pl8dpuualjx tphzzyuwy6fyeax9mqq8ogr The smallest particle of an element that retains the chemical properties of that element. Regions: Nucleus: very small region
More informationAverage Atomic Mass: How are the masses on the periodic table determined?
Chemistry Ms. Ye Name Date Block Average Atomic Mass: How are the masses on the periodic table determined? Most elements have more than one naturally occurring isotope. As you learned previously, the atoms
More informationChapter 3. Table of Contents. Section 1 The Atom: From Philosophical Idea to Scientific Theory. Section 2 The Structure of the Atom
Atoms: The Building Blocks of Matter Table of Contents Section 1 The Atom: From Philosophical Idea to Scientific Theory Section 2 The Structure of the Atom Section 1 The Atom: From Philosophical Idea to
More informationChapter 3. Chapter 3. Objectives. Table of Contents. Chapter 3. Chapter 3. Foundations of Atomic Theory, continued. Foundations of Atomic Theory
Atoms: The Building Blocks of Matter Table of Contents Philosophical Idea to Scientific Theory Objectives Explain the law of conservation of mass, the law of definite proportions, and the law of multiple
More information1. The mass number of the atom is the total number of &. 2. What are the three particles in an atom and what is each of their charges?
WEDNESDAY, OCT. 15 1. The mass number of the atom is the total number of &. 2. What are the three particles in an atom and what is each of their charges? 3. The symbol for elements is commonly written
More informationAtomic Structure Chapter 4 Mr. Hines
Atomic Structure Chapter 4 Mr. Hines Part A Standard model of the atom Learning Targets and I can statements 1 List, label, and describe the parts of an atom. 2 Identify the atomic number and the atomic
More informationDemocritus & Leucippus (~400 BC) Greek philosophers: first to propose that matter is made up of particles called atomos, the Greek word for atoms
AP Chemistry Ms. Ye Name Date Block The Evolution of the Atomic Model Since atoms are too small to see even with a very powerful microscope, scientists rely upon indirect evidence and models to help them
More informationThe structure of the Atom. Chemistry chapter 4
The structure of the Atom Chemistry chapter 4 Rutherford-Bohr Model Niels Bohr (1922) Proposed improvements to Rutherford Atomic Model. For this reason the planetary model of the atoms is sometimes called
More informationAtomic Structure. How do you discover and study something you can t see?
Atomic Structure How do you discover and study something you can t see? WHAT IS A THEORY? A hypothesis is a proposed explanation made as a starting point for further investigation (It s bright outside
More informationAtoms Section 2 Section 2: The Structure of Atoms
Section 2: The Structure of Atoms Preview Key Ideas Bellringer What Is in an Atom? Atomic Number and Mass Number Isotopes Atomic Masses Math Skills Key Ideas What is the difference between protons, neutrons,
More informationStudent-Built Glossary
1 Student-Built Glossary This is an alphabetical list of key vocabulary terms you will learn in Chapter 1. As you study this chapter, complete each term s definition or description. Remember to add the
More informationCP/Honors Chemistry Unit 3: Atomic Theory Sections 4.1, 4.2, 4.3
CP/Honors Chemistry Unit 3: Atomic Theory Sections 4.1, 4.2, 4.3 Subatomic Particles Warm-Up Quiz 1. What are the three subatomic particles? 2. Where are the particles located in the atom? 3. What are
More informationAtoms, Isotopes, and Ions
WHY? ACTIVITY 02-1 Atoms, Isotopes, and Ions Atoms are the fundamental building blocks of all substances. To begin to understand the properties of atoms and how they combine to form molecules, you must
More informationtomic tructure Chapter 3
tomic tructure Chapter 3 Early Theories of Matter 460 BC Democritus Proposed the matter was not infinitely divisible. Believed matter composed of particles called atoms. Early Theories of Matter Aristotle
More informationUnderstanding the Atom
CHAPTER RESOURCES Chapter 4 Understanding the Atom Includes: LEVELED ASSESSMENT Chapter Review Chapter Tests Test A (Below Level) BL Test B (On Level) OL Test C (Advanced Learner) AL LABS For leveled labs,
More informationSmoking at an early age may make it more difficult to quit smoking later. Which of the above statements is an opinion and which is a theory?
Preview Lesson Starter Objectives Foundations of Atomic Theory Law of Conservation of Mass Law of Multiple Proportions Dalton s Atomic Theory Modern Atomic Theory Section 1 The Atom: From Philosophical
More informationUnit 4: The Atom, Atomic Number, Mass Number, And Isotopes
#5 PPT APE MAN AND ISOTOPES! Unit 4: The Atom, Atomic Number, Mass Number, And Isotopes LecturePLUS Timberlake 1 Atomic Theory Atoms are building blocks of elements Similar atoms in each element Different
More informationName: Date: Pd: Unit 2: Atomic Structure: Isotopes Guided Notes. Positively charged (+1). Found in the nucleus.
_ Atoms: The Building Blocks of everything? Unit 2: Atomic Structure: Isotopes Guided Notes An atom consists of a An atom is the smallest unit of an element that is possible. All the matter around us is
More informationCard 1 Chapter 18. Card 2. Chapter 18. Negative particles that surround the nucleus (like planets around the sun)
Card 1 Card 2 Positive particles in the nucleus of the atom Negative particles that surround the nucleus (like planets around the sun) Card 3 Card 4 Neutral particles in the nucleus of the atom. They help
More information4-1 Notes. Defining the Atom
4-1 Notes Defining the Atom Early Models of the Atom All matter is composed of atoms Atoms are the smallest particles of an element that retains their identity in a chemical reaction Greek philosopher
More information1. Explain the law of conservation of mass in your own words. Matter is neither created nor destroyed in a chemical reaction.
Chapter 3 Exam Review KEY I. Atomic Theory 1. Explain the law of conservation of mass in your own words. Matter is neither created nor destroyed in a chemical reaction. 2. What were Rutherford s two main
More informationcomo trabajan las calculadoras?
Revista de Matemática: Teoría y Aplicaciones 2005 12(1 & 2) : 45 50 cimpa ucr ccss issn: 1409-2433 como trabajan las calculadoras? Bruce H. Edwards Received/Recibido: 24 Feb 2004 Abstract What happens
More informationHow can there be different varieties of atoms?
Chapter 4 Atomic Structure 4.1 Defining the Atom 4.2 Structure of the Nuclear Atom 4.3 Distinguishing Among Atoms 1 Copyright Pearson Education, Inc., or its affiliates. All Rights Reserved. CHEMISTRY
More informationAtomic Structure Chapter 4 Mr. Hines
Atomic Structure Chapter 4 Mr. Hines Part A Standard model of the atom Learning Targets and I can statements 1 List, label, and describe the parts of an atom. 2 Identify the atomic number and the atomic
More informationthe properties of that element
Name Date Due Atomic Structure and the Periodic Table: Unit Objective Study Guide Part 1 Directions: Write your answers to the following questions in the space provided. For problem solving, all of the
More informationCP/Honors Chemistry Unit 3: Atomic Theory Chapter 4, Sections 1, 2, and 3
CP/Honors Chemistry Unit 3: Atomic Theory Chapter 4, Sections 1, 2, and 3 Subatomic Particles Warm-Up Quiz 1. What are the three subatomic particles? 2. Where are the particles located in the atom? 3.
More informationAtomic Structure Picture
Atomic Structure Picture What do you know about atomic structure already? 1 How did we get the information for our modern atomic structure? 10 minute movie http://www.bozemanscience.com/history of the
More informationChapter 4: Atoms and Elements
Chapter 4: Atoms and Elements Determine atomic numbers, mass numbers, and isotope symbols for an isotope. Determine number of protons and neutrons from isotope symbols. Calculate atomic mass from percent
More informationUNIT 2 - ATOMIC THEORY
UNIT 2 - ATOMIC THEORY VOCABULARY: Allotrope Anion Atom Atomic Mass Atomic Mass unit (a.m.u.) Atomic number Bohr model Cation Compound Electron Electron Configuration Element Excited state Ground state
More informationIntro to Chemistry and Physics/Pre-AP Chem UNIT 2 Atoms: The Building Blocks of Matter 2:1 Foundations of Atomic Theory
2:1 Foundations of Atomic Theory In the 1790s the study of matter was revolutionized by the quantitative analysis of chemical reactions, which had been greatly improved by more accurate balances. This
More informationIsotopes and Atomic Mass
Isotopes and Atomic Mass By the end of this lesson, I will be able to: Explain the following terms: isotope, percentage, percent abundance, average, weighted average, average weighted mass, atomic mass.
More informationprotons electrons neutrons nucleus Center of the atom; contains protons and neutrons. The Atom Molecules are made up of two or more atoms.
_ Period: The Atom Ch. 18:1 Everything is made of atoms. Atoms are the smallest part of matter. Atoms are made up of 3 subatomic particles (particles smaller than the atom): electrons, protons, and neutrons.
More informationName Period Date Engage-Atoms 1. What does Bill cut in half?
Name Period Date Engage-Atoms https://www.youtube.com/watch?v=fmuskig2exi 1. What does Bill cut in half? 2. By cutting this item in half he tries to prove that there are pieces that are uncut- table called
More informationChapter 5 Atomic Structure and the Periodic Table
Chemistry/ PEP Name: Date: Chapter 5 Atomic Structure and the Periodic Table Chapter 5: 1 16, 20, 21, 23, 24, 27-32, 35, 42, 44, 49, 50, 55 (32 total) Section Review 5.1 1. In your own words, state the
More informationAtomic Structure Early Theories Democritus: 4 B.C.: atom Dalton: atoms cannot Thomson: Cathode Ray Tubes Rutherford:
Atomic Structure n a well-substantiated explanation of some aspect of the natural world; n an organized system of accepted knowledge that applies in a variety of circumstances to explain a specific set
More informationChemistry Day 10. Monday, September 17 th Tuesday, September 18 th, 2018
Chemistry Day 10 Monday, September 17 th Tuesday, September 18 th, 2018 Do-Now Title: Brainstorm: Unit 1 1. Write down today s FLT 2. Draw what an atom looks like according to Democritus and Dalton 3.
More informationThe atomic number is equal to the number of protons in the nucleus.
Atomic Number The atomic number is equal to the number of protons in the nucleus. Sometimes given the symbol Z. On the periodic chart Z is the uppermost number in each element s box. In 1913 H.G.J. Moseley
More information2.1. SYMBOLS AND FORMULAS A unique symbol is used to represent each element. Formulas are used to represent compounds.
2.1. SYMBOLS AND FORMULAS A unique symbol is used to represent each element. Formulas are used to represent compounds. Symbols of Elements Atoms and Molecules ELEMENTAL SYMBOLS A symbol is assigned to
More informationLos números desde el punto de vista gramatical son adjetivos numerales y pueden
FIRST TOPIC: NUMBERS UNIT 1.CARDINAL AND ORDINAL Los números desde el punto de vista gramatical son adjetivos numerales y pueden aparecer de dos formas, como números cardinales y como números ordinales.
More information1. What subatomic particles do these symbols represent in Model 1?
Coulombic attraction is the attraction between oppositely charged particles. For example, the protons in the nucleus of an atom have attraction for the electrons surrounding the nucleus. This is because
More informationEarly Atomic Theory. Alchemy. The atom
Early Atomic Theory Chapter 3 Democritus 460 BC- ~ 370 BC Nothing exists except atoms and empty space; everything else is opinion. Matter is composed of small indivisible particles, atomos meaning Indivisible
More informationElements, Atoms, and Ions
Elements, Atoms, and Ions Chemistry I: Chapter 2b Chemistry I Honors: Chapter 3 ICP: Chapter 17 SAVE PAPER AND INK!!! When you print out the notes on PowerPoint, print "Handouts" instead of "Slides" in
More informationUnit 3 Atomics Repair Problems
1. What is the charge of the nucleus in an atom of oxygen-17? A) 0 B) 2 C) +8 D) +17 2. A neutral atom contains 12 neutrons and 11 electrons. The number of protons in this atom is A) 1 B) 11 C) 12 D) 23
More informationLesson 12: Atoms and Subatomic Particles
NOTES Name: Date: Class: Lesson 12: Atoms and Subatomic Particles Element: fundamental substance that ; all matter consists of ~100 elements Atom: that can exist; smallest unit of an element that can enter
More information1 amu 1 amu 0 amu. Chapter 2 part 1.notebook September 16, Modern Atomic Theory
Chapter 2 The Atom Elements are the basic substances that make up all matter. An atom is the smallest particle of an element. Average atoms are 10 10 m in diameter. If you could put 6.02 x 10 23 p + and
More informationHow to Use This Presentation
How to Use This Presentation To View the presentation as a slideshow with effects select View on the menu bar and click on Slide Show. To advance through the presentation, click the right-arrow key or
More information10/4/2011. Tells you the number of protons
Atomic Structure The arrangement of the subatomic particles within the atom determines the chemical properties of the elements How they interact with one another The types of ions and structures that they
More informationUnit 3 PRACTICE TEST:
name/date/pd: Unit 3 PRACTICE TEST: 1) List the major contributors to atomic theory (in order) in the table below. Then, fill in the rest of the missing information such as their major discoveries, model,
More informationUNIT 2 - ATOMIC THEORY
UNIT 2 - ATOMIC THEORY VOCABULARY: Allotrope Electron Configuration Nuclear Charge Anion Element Nucleons Atom Excited state Nucleus Atomic Mass Ground state Orbital Atomic Mass unit (a.m.u.) Ion Proton
More informationCHAPTER 3. Atoms: The Building Blocks of Matter
CHAPTER 3 Atoms: The Building Blocks of Matter Origins of the Atom Democritus: Greek philosopher (460 BC - 370 BC) Coined the term atom from the Greek word atomos Democritus believes that atoms were indivisible
More informationAtomic Structure. The nuclear atom Electron Configuration. Ms. Thompson - SL Chemistry Wooster High School. Wednesday, July 15, 15
Atomic Structure The nuclear atom Electron Configuration Ms. Thompson - SL Chemistry Wooster High School Topic 2.1 The nuclear atom Atoms contain a positively charged dense nucleus composed of protons
More informationPropositional Logic: exercises
Propositional Logic: exercises 1. Prove that p p is unsatisfiable 2. Prove that p p is a tautology 3. Write the truth table of the following two formula (p (q r)) and ( p (q r)). Say for each one if it
More informationUnit 2: Atomic Structure Additional Practice
Name: Unit 2: Atomic Structure Additional Practice Period: 1. Which particles have approximately the same mass? an electron and an alpha particle an electron and a proton a neutron and an alpha particle
More informationAtomic Structure. For thousands of years, people had many ideas about matter Ancient Greeks believed that everything was made up of the four elements
An atom is the smallest particle of an element that retains its identity in a chemical reaction. Although early philosophers and scientists could not observe individual atoms, they were still able to propose
More informationDemocritus & Leucippus (~400 BC) Greek philosophers: first to propose that matter is made up of particles called atomos, the Greek word for atoms
Chemistry Ms. Ye Name Date Block The Evolution of the Atomic Model Since atoms are too small to see even with a very powerful microscope, scientists rely upon indirect evidence and models to help them
More information3. SI Base Units used in Chemistry: Quantity Unit Name Abbreviation Tool to Measure Length Mass Time Temperature Amount of Substance
Honors Chemistry Unit 1 Intro and Atomic Theory Notes Intro Scientific Measurements: 1. Chemistry is the study of. 2. Why do scientists worldwide use the SI system of measurement? 3. SI Base Units used
More information(4-S1-C1) Observe, ask questions, and make predictions. (4-S1-C2) Participate in planning and conducting investigations, and recording data.
CUARTO GRADO ESTRUCTURAS DE VIDA- ALINEACIÓN DE ESTÁNDARES Investigation 1: Origin of Seeds Part 1: Seed Search Where do seeds come from? Where are seeds found on plants? De dónde vienen las semillas?
More informationNuclear Chemistry. Atomic Structure Notes Start on Slide 20 from the second class lecture
Nuclear Chemistry Atomic Structure Notes Start on Slide 20 from the second class lecture The Birth of an Idea Democritus, 400 B.C. coined the term atom If you divide matter into smaller and smaller pieces,
More informationRegents Chemistry Unit 1 Atomic Concepts. Textbook Chapters 3 & 4
Regents Chemistry Unit 1 Atomic Concepts Textbook Chapters 3 & 4 Atomic Theory- Atoms are the building blocks of matter Atomic Models Democritus ~440 BC a Greek Philosopher suggested that matter is made
More informationChemistry 1. Worksheet 9. Atomic Number, Mass Number, and Isotopes of Elements. 1 MathTutorDVD.com
Chemistry 1 Worksheet 9 Atomic Number, Mass Number, and Isotopes of Elements 1 You will need a periodic table to complete this worksheet. 1. Label the subatomic particles below with the appropriate charge.
More informationDrill What do you know? 1. Write your definition of an ATOM. 2. What is inside an atom? 3. What determines the identity of an atom?
Drill What do you know? 1. Write your definition of an ATOM. 2. What is inside an atom? 3. What determines the identity of an atom? Drill 10/6 1. What is inside an atom? 2. What determines the identity
More informationWork hard. Be nice. Name: Period: Date: UNIT 2: Atomic Concepts Lesson 9: Calculating Average Atomic Mass
Name: Period: Date: KIPP NYC College Prep General Chemistry UNIT 2: Atomic Concepts Lesson 9: Calculating Average Atomic Mass By the end of today, you will have an answer to: How do we determine the average
More informationThe History of the Atom. How did we learn about the atom?
The History of the Atom How did we learn about the atom? The Atomic Theory of Matter All matter is made up of fundamental particles. What does fundamental mean? The Greek Philosophers, 400 B.C. Democritus
More informationEarly Atomic Models. Atoms: the smallest particle of an element that retains the properties of that element.
Chapter 5 Early Atomic Models Atoms: the smallest particle of an element that retains the properties of that element. (Greek: atomos = indivisible) Democritus (Greek teacher in the 4 th century BC) First
More informationChapter 2: Atoms and Molecules
SYMBOLS AND FORMULAS A unique symbol is used to represent each element. Formulas are used to represent compounds. Chapter 2: Atoms and Molecules ELEMENTAL SYMBOLS A symbol is assigned to each element.
More informationDear Family, Content Overview
Dear Family, Content Overview In our math class, we are studying algebra. We will study algebraic expressions, how quantities vary together, and solving equations. These concepts are important for your
More informationAtoms and their structure
Atoms and their structure History of atomic theory Not the history of atom, but the idea of the atom Original idea Ancient Greece (400 B.C..) Democritus and Leucippus Greek philosophers Another Greek Aristotle
More informationChemistry Vocabulary. These vocabulary words appear on the Chemistry CBA in addition to being tested on the Chemistry Vocabulary Test.
Chemistry Vocabulary These vocabulary words appear on the Chemistry CBA in addition to being tested on the Chemistry Vocabulary Test. atom the smallest unit of an element that still represents that element.
More informationChemistry PreAP Atomic Structure Homework Packet
Chemistry PreAP Atomic Structure Homework Packet Name: Period: Chemistry Teacher: 1 Isotopes Are all atoms of an element alike? Why? The following activity will help you learn the important structural
More informationAtoms, Ions and Molecules Calculations
Atoms, Ions and Molecules Calculations 1. How do you calculate the atomic mass of an element? Atomic Mass = (% abundance of isotope 1)(mass of isotope 1) + (% abundance of isotope2)(mass of isotope 2)
More informationThe Atom. How Small Is an Atom? 318 Chapter 11 Introduction to Atoms
Objectives Describe the size of an atom. Name the parts of an atom. Describe the relationship between numbers of protons and neutrons and atomic number. State how isotopes differ. Calculate atomic masses.
More informationAtomic Structure Picture
Atomic Structure Picture What do you know about atomic structure already? 1 How did we get the information for our modern atomic structure? 10 minute movie http://www.bozemanscience.com/history of the
More informationUnit 3: Atoms and Periodic Table Retake Review Packet
Name Date Block Unit 3: Atoms and Periodic Table Retake Review Packet Completing each section of the retake review packet will fulfill one of the requirements for retaking the unit 3 test. Section 1: Vocabulary
More informationMatter. Lab Worksheets for each Student Edition Activity Laboratory Activities Foldables Reading and Study Skills activity sheet
Glencoe Science Chapter Resources Matter Includes: Reproducible Student Pages ASSESSMENT Chapter Tests Chapter Review HANDS-N ACTIVITIES Lab Worksheets for each Student Edition Activity Laboratory Activities
More informationSIZING UP THE ATOM. Atoms are now known to be divisible!
SIZING UP THE ATOM Atoms are now known to be divisible! Chapter 4 Atomic Structure 4.1 Defining the Atom 4.2 Structure of the Nuclear Atom 4.3 Distinguishing Among Atoms SUBATOMIC PARTICLES Subatomic particles
More informationLidskii aditivo y multiplicativo con igualdades
Lidsii aditivo y multiplicativo con igualdades Seminario IAM 26 / 10 / 2012 1 Submajorization and log-majorization Next we briefly describe majorization and log-majorization, two notions from matrix analysis
More informationAtoms and Their Isotopes
Atoms and Their Isotopes Why? Atoms and isotopes are identified by the number of protons, neutrons, and electrons that they contain. Before you can understand the properties of atoms, how atoms combine
More information3.02 Atomic Structure
302 Atomic Structure Nomenclature and Parts of the atom Dr Fred Omega Garces Chemistry 111 Miramar College 1 303 Atomic Structure Modern view of the atom What are the parts of the atom and how are these
More information