Atom Structure

Front

What is the basic unit of matter?

Back

An atom.

Tags

NGSS.MS-PS1-1

Front

What are the three main subatomic particles of an atom?

Back

Protons, neutrons, and electrons.

Front

What charge do protons carry?

Back

Positive charge.

Front

What charge do neutrons carry?

Back

No charge (neutral).

Front

What charge do electrons carry?

Back

Negative charge.

Front

Where are protons and neutrons located in an atom?

Back

In the nucleus.

Front

What is the nucleus of an atom?

Back

The central part of an atom that contains protons and neutrons.

Front

What is the electron cloud?

Back

The region around the nucleus where electrons are likely to be found.

Front

How do the number of protons in an atom relate to its identity?

Back

The number of protons determines the atomic number and the element's identity.

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.