Polyatomic Ion Review

Front

What is a polyatomic ion?

Back

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

Front

What is the formula for the phosphate ion?

Back

The formula for the phosphate ion is PO₄³⁻.

Front

How do you determine the chemical formula of a compound formed from a metal and a polyatomic ion?

Back

To determine the chemical formula, balance the charges of the metal cation and the polyatomic anion to ensure the overall charge is neutral.

Front

What is the charge of the ammonium ion?

Back

The charge of the ammonium ion (NH₄⁺) is +1.

Front

What is the difference between isotopes of an element?

Back

Isotopes of an element have the same number of protons but different numbers of neutrons.

Front

What is a positive control in an experiment?

Back

A positive control is a group in an experiment that receives a treatment with a known response, used to validate the experiment's results.

Front

What is the formula for the ammonium ion?

Back

The formula for the ammonium ion is NH₄⁺.

Front

What is the formula for the sulfate ion?

Back

The formula for the sulfate ion is SO₄²⁻.

Front

How do you calculate the atomic mass of an atom?

Back

The atomic mass of an atom is calculated by adding the number of protons and neutrons in the nucleus.

Front

What is the formula for the carbonate ion?

Back

The formula for the carbonate ion is CO₃²⁻.