Polyatomic ions

Front

What is a polyatomic ion?

Back

A polyatomic ion is a charged species (ion) composed of two or more atoms covalently bonded, which can be either positively or negatively charged.

Front

What is the formula for chlorate?

Back

ClO₃¹⁻

Front

What is the formula for hydroxide?

Back

OH¹⁻

Front

What is the formula for nitrite?

Back

NO₂¹⁻

Front

What is the formula for sulfate?

Back

SO₄²⁻

Front

What is the formula for carbonate?

Back

CO₃²⁻

Front

How do you identify a polyatomic ion in a compound?

Back

Look for groups of atoms that are bonded together and carry a charge, such as sulfate (SO₄²⁻) or nitrate (NO₃¹⁻).

Front

What charge does the sulfate ion carry?

Back

The sulfate ion carries a charge of 2- (SO₄²⁻).

Front

What is the difference between nitrate and nitrite?

Back

Nitrate has one more oxygen atom than nitrite; nitrate is NO₃¹⁻ and nitrite is NO₂¹⁻.

Front

What is the charge of the carbonate ion?

Back

The carbonate ion carries a charge of 2- (CO₃²⁻).