Parts of an Atom Practice

Front

What is the smallest unit of matter?

Back

Atom

Front

Which subatomic particle does not contribute significantly to the mass of an atom?

Back

Electron

Front

What subatomic particle has no charge?

Back

Neutron

Front

What are the two subatomic particles found in the nucleus of an atom?

Back

Protons and Neutrons

Front

What is the charge of a proton?

Back

Positive

Front

What is the charge of an electron?

Back

Negative

Front

What is the charge of a neutron?

Back

Neutral

Front

Where are protons located in an atom?

Back

In the nucleus.

Front

Where are electrons located in an atom?

Back

In the electron cloud surrounding the nucleus.

Front

What is the mass of a proton compared to an electron?

Back

Proton is approximately 1836 times more massive than an electron.