Atoms

Front

Most of the mass of an atom is found in the ______.

Back

nucleus

Front

What is the mass number of an atom with 11 protons and 12 neutrons?

Back

23

Front

The central region of an atom where its neutrons and protons are is its ______.

Back

nucleus

Front

A particle that moves around the nucleus is a(n) ______.

Back

Electron

Front

The positive particles of an atom are ______.

Back

protons

Front

What are the three main subatomic particles of an atom?

Back

Protons, Neutrons, Electrons

Front

What charge do neutrons have?

Back

No charge (neutral)

Front

What is the charge of an electron?

Back

Negative

Front

What is the charge of a proton?

Back

Positive

Front

Where are electrons located in an atom?

Back

In the electron cloud surrounding the nucleus