Naming and Formula Writing of Ionic Compounds with Polyatomic Io

Name the following ionic compound: BeCl₂

• beryllium chlorine
• beryllium II chloride
• beryllium chloride
• beryllium dichloride

What is the correct formula for the compound, lithium oxide?

• LiO
• Li₂O
• LiO₂
• Li₂O₂

The formula of calcium phosphate is 

• CaPO₄
• Ca₂(PO₄)₃
• Ca₃PO₄
• Ca₃(PO₄)₂

What is the name of Al(NO₃)₃?

• Aluminum trinitrate
• Monoaluminum nitrate
• Aluminum (III) nitrate
• Aluminum Nitrate

A negative ion formed by the gain of valence electrons during ionization

• cation

• polyatomic ion

• anion

• monatomic ion

A covalently bonded group of atoms that has a positive or negative charge and acts as a unit ex: sulfate (-2 charge)

• polyatomic ion

• monatomic ion

• covalent ion unit

• periodic ion

What is the formula for sodium nitride

• NaN(s)

• N₂O₂(g)

• NO₂(g)

• Na₃N(s)

• Na₂O(s)

What is the name for Sr₃P₂(s)?

• phosphorus sulfide

• strontium phosphide

• tristrontium diphosphide

• potassium sulfide

• dipotassium sulfide

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

• KO.
• K₂O.
• K₂O₂.
• KO₂.

Magnesium ion would take a charge of

• 1+
• 2+
• 3+
• 0