Chapter 6 Review

Covalent bonds form between ---

• nonmetals.

• metals and metals

• metals and nonmetals

What elements generally make a covalent bond?

• metal and nonmetal
• 2 or more nonmetals
• metal
• none of the above

What is the charge, or oxidation number, for elements in Group 2?

• -2

• +2

• -3

How many valence electrons do most elements in Group 18 have?

• 18

• 8

• 2

Atoms gain lose, gain, or ______electrons to get a stable outer energy level.

• share

• split

• create

• destroy

For nonmetals (grousp 5-7), its easier to _____ electrons to have a full outer shell.

• gain

• lose

• share

How many valence electrons do elements in Group 1 have?

• 7

• 10

• 1

Atoms form compounds to become more ---

• reactive

• stable

• explosive

• toxic

For metals (groups 1-3), its easier to _____ electrons to have a full outer shell.

• gain

• lose

• share

The octet rules states that most elements want to have _____ valence electrons.

• 2

• 4

• 6

• 8