Semester Review What happens to electronegativity down a group? electrons for aluminum Identify the five scientists that progressed atomic structure Illustrate each scientist s model of the atom Circle the p block on a sketch of the periodic table A radar wavelength of 2.03 x 10-1 m will produce what frequency? 1
Neon gas has a density of 0.9002 g/l at 0 C and 1 atm of pressure. Determine the mass of a sample that takes up 35.9 L. Larger ionic size? Cesium Potassium 32.3 g Larger ionic size? Iodine Fluorine Illustrate the movement of electrons to form an ionic bond between the reactants and products of the following ionic compound: sodium sulfide Identify at least two intensive properties of matter Determine the number of subatomic particles in an isotope of iron-58 2
In your own words, define an element What happens to atomic size from left to right across a period? Identify the four main sublevels in order from least energetic to most energetic Identify at least three observations that would indicate a chemical reaction is taking place Larger atomic size? Calcium Bromine What happens to ionic size from left to right across a period? 3
Identify what Thomson s Cathode Ray Tube Experiment concluded What happens to atomic attraction down a group? Identify how the modern periodic table is organized The mass of the products must be. Gallium melts at 29.76 C. You determine the melting point to be 31.91 C. Determine your error and percent error. Electron configuration for: Francium Error = 2.15 g/l; % Error = 7.224% 4
A frequency of 1.58 x 10 18 Hz will produce what wavelength, in meters? Where would this fall on the electromagnetic spectrum? electrons for nitrogen What happens to shielding down a group? Contrast the three subatomic particles Illustrate the movement of electrons to form an ionic bond between the reactants and products of the following ionic compound: magnesium nitride Describe what defines an element s atomic number 5
Write the electron configuration of a strontium atom Circle the d block on a sketch of the periodic table Larger electronegativity? Beryllium Nitrogen Identify at least 5 elements that make up the nonmetals Illustrate the movement of electrons to form an ionic bond between the reactants and products of the following ionic compound: What happens to atomic size down a group? calcium fluoride 6
Illustrate the movement of electrons to form an ionic bond between the reactants and products of the following ionic compound: If 50g of sodium reacts with chlorine to form 126g of salt. How many grams of chlorine reacted? aluminum phosphide Identify the elements that make up the alkali metals Contrast the two types of mixtures Identify which state(s) of matter have a definite volume Identify the elements that make up the metalloids 7
Identify at least one physical property of matter Identify what Rutherford s Gold- Foil Experiment concluded Electron configuration for: Copernicium Identify at least two methods of separating a mixture, and describe how that method separates the components Higher atomic number = attraction Larger ionization energy? Hydrogen Helium 8
Define a quantum Illustrate the movement of electrons to form an ionic bond between the reactants and products of the following ionic compound: sodium bromide A 47.83 g sample of calcium has a density of 1.55 g/ml. Determine the volume of this sample. Contrast elements and compounds 30.9 ml What happens to ionization energy from left to right across a period? Using the sea of electrons model, describe why metals are good conductors, along with being ductile and malleable 9
Identify at least one extensive property of matter Define an alloy electrons for beryllium Circle the f block on a sketch of the periodic table Write the electron configuration of a phosphorus atom Electron configuration for: Silicon 10
electrons for neon Illustrate the movement of electrons to form an ionic bond between the reactants and products of the following ionic compound: aluminum iodide Identify the elements that make up the noble gases Identify which state(s) of matter have a definite shape Identify which state of matter is most easily compressed Illustrate the movement of electrons to form an ionic bond between the reactants and products of the following ionic compound: beryllium oxide 11
electrons for calcium Identify the number of total electrons that could fit into the 2 nd energy level What happens to electronegativity from left to right across a period? Electron configuration for: Arsenic Your group determines the solubility of sodium chloride in water to be 340 g/l. The actual value is 359 g/l. Determine your error and percent error. Identify the at least 5 elements that make up the transition metals Error = -19 g/l; % Error = 5.3% 12
What happens to shielding from left to right across a period? Larger ionization energy? Oxygen Selenium Larger atomic size? Aluminum Chlorine Contrast the three states of matter by illustrating the appearance of particles Briefly explain why light is emitted from an excited gas Write the electron configuration of a calcium atom 13
Larger electronegativity? Cesium Fluorine Identify the component of metals the lead to their unique properties electrons for chlorine electrons for potassium What happens to atomic attraction from left to right across a period? If electrons are filling the 3 rd energy level, identify the possible sublevels that electrons would have access to. 14
Answer - 20.2 Illustrate the movement of electrons to form an ionic bond between the reactants and products of the following ionic compound: cesium chloride Determine the average atomic mass of neon 20 Ne 90.48% 21 Ne 0.271% 22 Ne 9.25% electrons for sulfur electrons for carbon Identify the three distinct properties of ionic compounds Identify the elements that make up the halogens 15
Contrast reversible and irreversible physical changes by providing at least one example of each A 485 g sample of iron displaces a volume of 61.6 ml of water. Determine the density of iron. 7.87 g/ml A sample of carbon dioxide has a volume of 28.7 L and a mass of 52.5 g at 20 C. Determine the density of carbon dioxide at this temperature. Electron configuration for: Xenon 1.83 g/l Determine the number of subatomic particles in an isotope of cesium-133 Illustrate the movement of electrons to form an ionic bond between the reactants and products of the following ionic compound: aluminum nitride 16
Larger ionic size? Magnesium Silicon What happens to ionization energy down a group? electrons for fluorine Circle the s block on a sketch of the periodic table Identify the elements that make up the alkaline earth metals Describe an atom 17
Larger atomic size? Nitrogen Tin Describe what defines an isotope s mass number Larger electronegativity? Oxygen Sulfur Larger ionization energy? Sodium Chlorine Larger electronegativity? Lithium Francium The two isotopes that make up chlorine s atomic mass are 35 Cl & 37 Cl Chlorine s atomic mass is 35.45 What does this indicate about the abundance of the chlorine isotopes? 18
Identify the at least 5 elements that make up the representative elements What happens to ionic size down a group? Electron configuration for: Cadmium Identify at least one process that results in a chemical change to matter electrons for phosphorus 19