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AR Chemistry: Section 2 Review Set
Name_________________________ P___
1. What is the claim to fame for the proton?
2. What is the claim to fame for the electron?
3. What is the claim to fame for the neutron?
4. What is the mass of each of the following particles?: proton; neutron; electron.
5. What is the charge for each of the following particles?: proton; neutron; electron.
6. What two things are needed for two atoms to be isotopes?
7. Why are atomic masses of elements decimal numbers?
8. What is the standard isotope that is used for all atomic masses?
9. How many protons, neutrons, and electrons are found in the following atoms?
a.
36 0
17 Cl
f.
19
39
K+1
34 0
S
c.
19
40
Ca+2
h.
17
b.
16
g.
20
40
K0
35
Cl-1
d.
238 0
92 U
e.
55
0
26 Fe
1.
34 -2
16 S
j.
31 -3
15 P
10. What type of ionic charges do metals have?
11. What type of ionic charges do nonmetals have?
12. What type of ionic charges do semimetals have?
13. From groups 1 – 8, what are the ionic charges for the groups?
14. What are the formulae for the compounds created between the following elements and ions?
a.
Cu+2 NO3-1
b. Ca F
c. Ba S
d. NH4+1 OH-1
e.
i.
Fe+3 SO4-2
Mg Cl
f. Al OH-1
j. Cu+1 CO3-2
g Ca NO3-1
k. Mg I
h. Na CO3-2
l. Ca Br
n. Li Br
o. K O
p. Ag+1 S
m. Na HCO3-1
15. What are the names for the compounds made in the question above.
16. What are the atomic masses for the following compounds?
a. MgSO4
b. Ca(OH)2
c. (NH4)2O
d. Al(NO3)3
17. What seven elements are found in groups of two in nature?
18. What element is found in nature in groups of four?
19. What element is found in nature in groups of eight?
20. What two elements are liquid at room temperature?
21. What five elements are reactive gases?
22. Identify the following elements as metals, nonmetals, or semimetals:
a.
11Na
b. 26Fe
c.
13Al
d.
15P
e.
54Xe
f.
65Tb
g.
h.
82Pb
i.
32Ge
j.
21Sc
14Si
23. Where are the reactants in a chemical equation?
24. Where are the products in a chemical equation?
25. What observations can be used to indicate and chemical reaction?
AR Chemistry: Section 2 Review Set
Name_________________________ P___
1. What is the claim to fame for the proton?
determines the element
2. What is the claim to fame for the electron?
creates the chemical bonds
3. What is the claim to fame for the neutron?
stabilizes the nucleus
4. What is the mass of each of the following particles?:
proton 1; neutron 1; electron 0.
5. What is the charge for each of the following particles?:
proton +1; neutron 0; electron -1.
6. What two things are needed for two atoms to be isotopes?
same element, different mass
7. Why are atomic masses of elements decimal numbers?
weighted averages of isotopes
8. What is the standard isotope that is used for all atomic masses? Carbon-12
9. How many protons, neutrons, and electrons are found in the following atoms?
a. 1736Cl0
b. 1634S0
c. 1940K0
d. 92238U0
e. 2655Fe0
17 P, 19 N, 17 e
f.
19
39
K+1
19 P, 20 N, 18 e
16 P, 18 N, 16 e
g.
20
40
Ca+2
20 P, 20 N, 18e
19 P, 21 N, 19 e
h.
17
35
Cl-1
17 P, 18 N, 18 e
92 P, 146 N, 92 e
1.
34 -2
16 S
16 P, 18 N, 18 e
26 P, 29 N, 26 e
j.
31 -3
15 P
15 P, 16 N, 18 e
10. What type of ionic charges do metals have?
positive charges
11. What type of ionic charges do nonmetals have?
negative charges
12. What type of ionic charges do semimetals have?
none: don’t do ionic bonding
13. From groups 1 – 8, what are the ionic charges for the groups? +1 +2 +3 X -3 -2 -1 X
14. What are the formulae for the compounds created between the following elements and ions?
a. Cu+2 NO3-1 Cu(NO3)2
b. Ca F
CaF2
c. Ba S
BaS
+3
-2
-1
-1
e. Fe SO4 Fe2(SO4)3
f. Al OH
Al(OH)3
g Ca NO3
Ca(NO3)2
+1
-2
i. Mg Cl
MgCl2
j. Cu CO3 Cu2CO3
k. Mg I
MgI2
m. Na HCO3-1 NaHCO3
n. Li Br
LiBr
o. K O
K2O
d.
h.
l.
p.
NH4+1 OH-1 NH4OH
Na CO3-2 Na2CO3
Ca Br
CaBr2
Ag+1 S
Ag2S
15. What are the names for the compounds made in the question above.
a. copper (II) nitrate
b. calcium fluoride
c. barium sulfide
e. iron (III) sulfate
f. aluminum hydroxide
g. calcium nitrate
i. magnesium chloride
j. copper (I) carbonate
k. magnesium iodide
m. sodium hydrogen carbonate
n. lithium bromide
o. potassium oxide
d. ammonium hydroxide
h. sodium carbonate
l. calcium bromide
p. siver sulfide
16. What are the atomic masses for the following compounds?
a. MgSO4 120.37 amu
b. Ca(OH)2 74.10
d. Al(NO3)3 213.01
c. (NH4)2O 52.10
17. What seven elements are found in groups of two in nature?
18. What element is found in nature in groups of four?
19. What element is found in nature in groups of eight?
20. What two elements are liquid at room temperature?
21. What five elements are reactive gases?
22. Identify the following elements as metals, nonmetals, or semimetals:
a. 11Na Metal
b. 26Fe Metal
c. 13Al Metal
f. 65Tb Metal
g. 14Si Semimetal
h. 82Pb Metal
H O F Br I N Cl
P
S
Br, Hg
H, O, F, N, Cl
d. 15P Nonmetal
i. 32Ge Semimetal
e. 54Xe Nonmetal
j. 21Sc Metal
23. Where are the reactants in a chemical equation?
On the Left of the Arrow
24. Where are the products in a chemical equation?
On the Right of the Arrow
25. What observations can be used to indicate and chemical reaction?
temperature change, color change, release
of gas, precipitate formed.