1. IONIC BOND REVIEW

2. Which set of chemical names and formulas for the same compound is correct?
a. Iron(II) Oxide, Fe2O3
b. Aluminum flourate, AlF3
c. Tin(IV) bromide, SnBr4
d. Potassium chloride, K2Cl2

3. Which of the following groupings contains only representative elements?
Cu, Co, Cd
Al, Mg, Li
Ni, Fe, Zn
Hg, Cr, Ag

4. What is the charge of a cation?
Positive
negative
No charge
it depends on the size of the atom

5. Which is true about ions?
A. Cations form when atoms gain electrons
B. cations form when an atom loses electrons
C. Anions form when an atom gains protons
D. Anions form when an atom loses protons

6. Which of the following sets are the charges given correctly for all ions?
Na+, Mg+, Al+
b. K+, Sr2+, O2-
Rb-, Ba2-, P3+
N-, O2-, F3-

7. What is the name given to the electrons in the highest occupied energy level of an atom?
Orbital electrons
Valence electrons
Anions
Cations

8. How does Chlorine obey the octet rule when reacting to form cations?
It gains an electron
It gives up electrons
It does not change the number of electrons
It does not obey the octet rule

9. What is the formula unit for Aluminum Oxide?
AlO
Al3O
AlO3
Al2O3

10. What is the formula for Potassium sulfide?KS
K2S
KS2
K2S2

11. Which of the following compounds has the formula KNO3?
Potassium Nitrate
Potassium Nitride
Potassium Nitrite
Potassium Nitrogen Oxide

12. What is true about the melting temperature of sodium chloride?
The melting temperature is relatively high
The melting temperature is variable and unpredictable
The melting temperature is relatively low
Sodium chloride does not melt

13. Under what conditions can ionic compounds such as potassium bromide conduct electricity?
Only when melted
Only when dissolved
Only when in it’s crystal form
Only when melted or dissolved

14. What type of ions end in –ide?
Only cations
Only anions
Only metal ions
Only gaseous ions

15. When group 1A elements form ions, they
Lose two protons
Lose one proton
Gain two electrons
lose one electron

16. Which of the following is NOT a cation?
Iron(III) ion
Sulfate
Ca2+
Mercurous ion

17. What is the correct name for P3-?
Phosphate ion
Phosphorus
Phosphide ion

18. When naming a transition metal ion that can have more than one common ionic charge, the numerical value of the charge is indicated by a
Prefix
Suffix
Roman numeral following name
Superscripts after the name

19. An –ate or –ite at the end of a compound name usually indicated that the compound contains
Fewer electrons than protons
Neutral molecules
Only two elements
A polyatomic ion

20. Which of the following compounds contains the Mn3+ ion?
MnS
MnBr2
Mn2O3
MnO

21. How are chemical formulas of binary ionic compounds generally written?
Cation of left, anion on right
Anion on left, cation on right
Roman numeral first, then anion, then cation
Subscripts first, then ions

22. Which of the following forms an ionic bond?
CS2
BaI2
N2O4
PCl3

23. Which of the following compounds contain the lead(II) ion?
PbO
PbCl4
Pb2S

24. Which is the correct formula for potassium sulfite?
KHSO3
KHSO4
K2SO3
K2SO4

25. How do you find the number of valence electrons for the representative (group A) elements?
It corresponds to the period number
It corresponds to the family/group number
It is the same as the atomic number
It is the same as the atomic mass