Ionic Criss Cross Method

Ionic Criss Cross Method

Multiple Choice

Sulfur has 6 valence electrons. Sulfur will _____ to obey the octet rule.

• gain 2 electrons

• lose 2 electrons

• gain 6 electrons

• lose 6 electrons

Multiple Choice

What will Sulfur's charge become when it gains 2 electrons?

• +2

• -2

Multiple Choice

If Sulfur bonds with Sodium (Na), how many Sodium atoms would there be?

• 1

• 2

• 3

• 4

Multiple Choice

If Sulfur bonds with Calcium, how many Sulfur atoms would there be?

• 1

• 2

• 3

• 4

Multiple Choice

What is the oxidation number of Calcium?

• +1

• +2

• -1

• -2

Multiple Choice

What is the oxidation number of Phosphorus?

• +3

• -3

• +2

• -2

Multiple Choice

Use the criss-cross method to determine the chemical formula when Boron and Oxygen bond.

• B₂O

• BO₂

• B₂O₃

• B₃O₂

Multiple Choice

Use the criss-cross method to determine the chemical formula when Beryllium and Oxygen bond.

• BeO

• Be₂O₂

• Be₂O

• BeO₂

Multiple Choice

Use the criss-cross method to determine the chemical formula when Lithium and Nitrogen bond.

• LiN

• Li₂N

• LiN₃

• Li₃N

Multiple Choice

Use the criss-cross method to determine the chemical formula when Ammonium and Oxygen bond.

• NH₄O₂

• (NH₄)₂O

• NH₄O

• (NH₄)₃O₂

Multiple Choice

Use the criss-cross method to determine the chemical formula when Aluminum and Carbonate bond.

• AlCO₃

• Al₂(CO₃)₃

• Al(CO₃)₂

• Al₂CO₃

Multiple Choice

Use the criss-cross method to determine the chemical formula when Magnesium and Carbonate bond.

• Mg₂(CO₃)₂

• Mg₃(CO₃)₂

• MgCO₃

• Mg₂CO₃