Protons, neutrons, electrons

Front

What are the three main subatomic particles in an atom?

Back

Protons, neutrons, and electrons.

Front

What is the charge of a proton?

Back

Positive charge.

Front

What is the charge of a neutron?

Back

No charge (neutral).

Front

What is the charge of an electron?

Back

Negative charge.

Front

Where are protons and neutrons located in an atom?

Back

In the nucleus.

Front

What determines the identity of an element?

Back

The number of protons in the nucleus.

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus.

Front

How do you find the number of neutrons in an atom?

Back

Subtract the atomic number from the atomic mass.

Front

What is the atomic mass of an element?

Back

The weighted average mass of an atom's isotopes.

Front

What is an isotope?

Back

Atoms of the same element with different numbers of neutrons.