Unit 2 Test

Ionic bonds are formed when electrons get

• Shared between two atoms

• Removed from both atoms

• Transferred from one atom to another

• Added to both atoms

How many valence electrons does Mg have? (use the PTable)

• 1

• 2

• 3

• 4

• 5

How many valence electrons does Po (Polonium) have? (Use your PTable)

• 2

• 4

• 6

• 8

Ionic bonds typically form between

• A metal and a nonmetal

• Two nonmetals

• Two metals

• A metalloid and a metal

Atoms are most stable when their outer shell is complete.

• True

• False

Why do elements form chemical bonds?

• Because they're friendly

• To create a new element

• To become stable

• Because they all need to gain more electrons

Name this ionic compound: Al₂O₃

• Dialuminum oxide

• Aluminum oxygen

• Oxygen Aluminide

• Aluminum oxide

If you were to draw the lewis dot structure for Germanium (Ge), how many dots would you put around it?

• 2

• 4

• 6

• 8

Cations _______ electrons, becoming _______ charged.

• Gain; positively (+)

• Gain; negatively (-)

• Lose; positively (+)

• Lose; negatively (-)

Anions ____ electrons, becoming _____ charged.

• Gain; positively (+)

• Gain; negatively (-)

• Lose; positively (+)

• Lose; negatively (-)