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.

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Jocelyn Craig
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1 Semester Review 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 g/l Describe what defines an element s atomic number Write the electron configuration of a strontium atom Determine the number of subatomic particles in an isotope of cesium-133 Circle the d block on a sketch of the periodic table 1

2 Identify the elements that make up the alkaline earth metals What happens to ionization energy from left to right across a period? Circle the s block on a sketch of the periodic table Larger electronegativity? Beryllium Nitrogen Identify the elements that make up the alkali metals What happens to electronegativity down a group? 2

3 Identify at least 5 elements that make up the nonmetals What happens to atomic attraction from left to right across a period? electrons for sulfur Identify the component of metals the lead to their unique properties electrons for chlorine Illustrate the movement of electrons to form an ionic bond between the reactants and products of the following ionic compound: calcium fluoride 3

4 Define an alloy Illustrate the movement of electrons to form an ionic bond between the reactants and products of the following ionic compound: sodium bromide electrons for aluminum Illustrate the movement of electrons to form an ionic bond between the reactants and products of the following ionic compound: aluminum phosphide Using the sea of electrons model, describe why metals are good conductors, along with being ductile and malleable electrons for carbon 4

5 Contrast reversible and irreversible physical changes by providing at least one example of each Identify which state(s) of matter have a definite volume Identify at least one process that results in a chemical change to matter Identify at least one extensive property of matter If 50g of sodium reacts with chlorine to form 126g of salt. How many grams of chlorine reacted? A 485 g sample of iron displaces a volume of 61.6 ml of water. Determine the density of iron g/ml 5

6 Contrast the three states of matter by illustrating the appearance of particles Identify what Rutherford s Gold- Foil Experiment concluded Contrast the two types of mixtures Describe what defines an isotope s mass number Identify the five scientists that progressed atomic structure Illustrate each scientist s model of the atom If electrons are filling the 3 rd energy level, identify the possible sublevels that electrons would have access to. 6

7 What happens to atomic size down a group? Larger ionization energy? Oxygen Selenium Define a quantum Circle the p block on a sketch of the periodic table Identify the at least 5 elements that make up the transition metals A radar wavelength of 2.03 x 10-1 m will produce what frequency? 7

8 Identify the elements that make up the metalloids Larger ionic size? Magnesium Silicon Identify the at least 5 elements that make up the representative elements Identify at least one physical property of matter Larger ionization energy? Sodium Chlorine Identify the elements that make up the noble gases 8

9 Neon gas has a density of g/l at 0 C and 1 atm of pressure. Determine the mass of a sample that takes up 35.9 L. Identify the elements that make up the halogens 32.3 g Larger electronegativity? Lithium Francium electrons for fluorine Larger ionic size? Cesium Potassium Electron configuration for: Arsenic 9

10 Answer Determine the average atomic mass of neon 20 Ne 90.48% 21 Ne 0.271% 22 Ne 9.25% Electron configuration for: Copernicium electrons for beryllium Larger electronegativity? Cesium Fluorine Identify the three distinct properties of ionic compounds Higher atomic number = attraction 10

11 Illustrate the movement of electrons to form an ionic bond between the reactants and products of the following ionic compound: What happens to ionic size down a group? aluminum iodide Larger ionic size? Iodine Fluorine Circle the f block on a sketch of the periodic table Identify at least two methods of separating a mixture, and describe how that method separates the components Illustrate the movement of electrons to form an ionic bond between the reactants and products of the following ionic compound: cesium chloride 11

12 Describe an atom 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 Contrast elements and compounds Determine the number of subatomic particles in an isotope of iron-58 In your own words, define an element 12

13 electrons for neon electrons for phosphorus Larger ionization energy? Hydrogen Helium Identify the number of total electrons that could fit into the 2 nd energy level What happens to atomic size from left to right across a period? Larger atomic size? Aluminum Chlorine 13

14 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 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 A g sample of calcium has a density of 1.55 g/ml. Determine the volume of this sample. Larger atomic size? Nitrogen Tin 30.9 ml 14

15 Write the electron configuration of a calcium atom Electron configuration for: Cadmium The two isotopes that make up chlorine s atomic mass are 35 Cl & 37 Cl Chlorine s atomic mass is What does this indicate about the abundance of the chlorine isotopes? Larger atomic size? Calcium Bromine What happens to ionic size from left to right across a period? Identify what Thomson s Cathode Ray Tube Experiment concluded 15

16 What happens to atomic attraction down a group? What happens to ionization energy down a group? Briefly explain why light is emitted from an excited gas Illustrate the movement of electrons to form an ionic bond between the reactants and products of the following ionic compound: aluminum nitride Identify how the modern periodic table is organized Identify which state(s) of matter have a definite shape 16

What happens to shielding from left to right across a period? The mass of the products must be. Gallium melts at 29.76 C. You determine the melting point to be 31.91 C.

17 What happens to shielding from left to right across a period? The mass of the products must be. Gallium melts at C. You determine the melting point to be C. Determine your error and percent error. Electron configuration for: Francium Error = 2.15 g/l; % Error = 7.224% A frequency of 1.58 x Hz will produce what wavelength, in meters? Where would this fall on the electromagnetic spectrum? electrons for potassium 17

18 What happens to electronegativity from left to right across a period? 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. Error = -19 g/l; % Error = 5.3% Write the electron configuration of a phosphorus atom electrons for calcium electrons for nitrogen Electron configuration for: Silicon 18

19 Electron configuration for: Xenon Larger electronegativity? Oxygen Sulfur 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 19

Identify the five scientists that progressed atomic structure Illustrate each scientist s model of the atom

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