Valency and Ionic Compounds Challenge

What is the valency of the ammonium ion (NH4+)?

• -1

• +2

• 0

• +1

Identify the valency of the sulfate ion (SO4^2-).

• 3

• 1

• 4

• 2

What is the charge of the nitrate ion (NO3-)?

• 0

• +1

• -2

• -1

Determine the valency of the carbonate ion (CO3^2-).

• 3

• 2

• -2

• 1

What is the valency of the phosphate ion (PO4^3-)?

• 3

• 1

• 2

• 4

Identify the valency of sodium (Na).

• 0

• 3

• 2

• 1

What is the valency of magnesium (Mg)?

• 3

• 2

• 4

• 1

Determine the valency of aluminum (Al).

• +1

• +4

• +3

• +2

What is the valency of calcium (Ca)?

• 4

• 3

• 2

• 1

Identify the valency of iron (Fe) in Fe2O3.

• +3

• +1

• +4

• +2