Binary Ionic Formulas

Front

What is a binary ionic compound?

Back

A binary ionic compound is a chemical compound composed of two different elements, typically one metal and one non-metal, that are held together by ionic bonds.

Front

How do you determine the formula for a binary ionic compound?

Back

To determine the formula, balance the total positive charge from the cations with the total negative charge from the anions.

Front

What is the charge of aluminum in Al₂O₃?

Back

The charge of aluminum in Al₂O₃ is +3.

Front

What is the charge of oxygen in K₂O?

Back

The charge of oxygen in K₂O is -2.

Front

What is the formula for the ionic compound formed between magnesium and oxygen?

Back

The formula is MgO.

Front

What is the charge of potassium in K₃N?

Back

The charge of potassium in K₃N is +1.

Front

What is the formula for the ionic compound formed between sodium and sulfur?

Back

The formula is Na₂S.

Front

How do you write the formula for an ionic compound?

Back

Write the symbol of the cation first, followed by the symbol of the anion, and balance the charges.

Front

What is the charge of sodium in Na⁺?

Back

The charge of sodium in Na⁺ is +1.

Front

What is the charge of sulfur in S^-2?

Back

The charge of sulfur in S^-2 is -2.