Re-check! Atoms & Overall Charge

Front

What is an atom?

Back

An atom is the smallest unit of matter that retains the properties of an element.

Front

What are the three main subatomic particles?

Back

Protons, neutrons, and electrons.

Front

What charge does a proton have?

Back

A proton has a positive charge.

Front

What charge does a neutron have?

Back

A neutron has no charge (neutral).

Front

What charge does an electron have?

Back

An electron has a negative charge.

Front

How do you determine the overall charge of an atom?

Back

The overall charge is determined by the difference between the number of protons and electrons.

Front

What is the overall charge of an atom with 8 protons and 8 electrons?

Back

The overall charge is neutral.

Front

What happens if an atom has more electrons than protons?

Back

The atom has a negative charge.

Front

What happens if an atom has more protons than electrons?

Back

The atom has a positive charge.

Front

What is the atomic number of an element?

Back

The atomic number is the number of protons in the nucleus of an atom.