5. At atom with a +2 oxidation number signifies that the atom has electrons. 6. A negatively charged ion is called a(n) .
7. What is the oxidation number for Boron?
8. A bond occurs between a metal and a nonmetal.
9. Covalent bonds electrons.
10. A bond occurs between 2 nonmetals.
11. An atom that has lost or gained an electron is a(n) .
12. will not form bonds.
13. In chemical formulas, the number of atoms in a compound is shown as a .
14. How many electrons are wanted on the outer energy level in order to be considered stable?
15. The number of electrons that an atoms loses, gains, or shares is called its number.
16. When aluminum bonds with oxygen, what is its correct name?
17. In Potassium Chloride, which element is the cation?
18. In Lithium Bromide, which element is the anion?
19. What is a binary compound?
20. In order to bond with sodium, chlorine would:
a. Lose one electron b. Gain one electron c. Gain 7 electrons

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