Atom & Isotope Review

Front

What is an isotope?

Back

An atom with different amounts of neutrons.

Front

Which particles determine the identity of an atom?

Back

Protons.

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

What is the atomic mass of an element?

Back

The weighted average mass of an atom's isotopes.

Front

How do isotopes of an element differ?

Back

They have the same number of protons but different numbers of neutrons.

Front

What is the relationship between protons and electrons in a neutral atom?

Back

They are equal in number.

Front

What are the three main subatomic particles?

Back

Protons, neutrons, and electrons.

Front

What is the charge of a neutron?

Back

Neutral (no charge).

Front

What is the charge of a proton?

Back

Positive.

Front

What is the charge of an electron?

Back

Negative.