Polyatomic Ions

Front

What is a polyatomic ion?

Back

A polyatomic ion is a charged species composed of two or more atoms covalently bonded, which can be considered as a single unit.

Front

What is the charge of the chromate ion?

Back

The charge of the chromate ion (CrO₄²⁻) is -2.

Front

What is the formula for the sulfate ion?

Back

The formula for the sulfate ion is SO₄²⁻.

Front

What does the suffix '-ate' indicate in polyatomic ions?

Back

The suffix '-ate' indicates that the ion contains a higher number of oxygen atoms compared to the '-ite' form.

Front

What is the formula for the nitrate ion?

Back

The formula for the nitrate ion is NO₃⁻.

Front

How can you determine the number of oxygen atoms in a polyatomic ion?

Back

The number of oxygen atoms can often be determined by counting the vowels in the name of the ion.

Front

What is the formula for the carbonate ion?

Back

The formula for the carbonate ion is CO₃²⁻.

Front

What is the charge of the phosphate ion?

Back

The charge of the phosphate ion (PO₄³⁻) is -3.

Front

What is the difference between chlorate and chlorite?

Back

Chlorate (ClO₃⁻) has one more oxygen atom than chlorite (ClO₂⁻).

Front

What is the formula for the acetate ion?

Back

The formula for the acetate ion is C₂H₃O₂⁻.