Ionic Review

What is the formula for magnesium chloride?

• MgCl
• Mg₂Cl
• MgCl₂
• Mg(ClO₃)₂

What is the formula for magnesium phosphide?

• Mg₃P₂
• Mg₂P₃
• Mg₂PO₃
• Mg₃(PO₃)₂

Because the overall charge in a compound must be ____________, the charge of iron in Fe₂O₃ can be calculated as 3⁺.

• 2⁺
• 1⁺
• 0
• 1^-

In the compound TiO₂, titanium has a charge of

• 4⁺
• 2⁺
• 2^-
• 4^-

The chemical formula for an ionic compound of potassium and oxygen is

• KO.
• K₂O.
• K₂O₂.
• KO₂.

Which is most likely to form a negative ion?

• an element from group 17
• a metal
• an element from group 1
• an element with atoms that have eight valence electrons

What is an anion?

• positive ion
• negative ion
• neutral atom
• 2 neutrons taken away

What is a cation?

• positive ion
• Neutral atom
• Two additional protons
• negative ion

Name this compound: 
NaBr

• Bromide sodide
• Sodium bromide
• Sodium bromate
• Sodium bromite

Write the formula for copper (I) phosphide

• Cu₃P
• CuP
• Cu₁P
• CuP₃