Chemistry Review

Front

What is the basic unit of matter?

Back

Atom

Front

What particle in an atom has a negative charge?

Back

Electron

Front

How many electrons does a Boron atom contain?

Back

5

Front

What is the atomic number of an atom?

Back

The number of protons in the nucleus of an atom.

Front

What is 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 a neutron?

Back

Neutral.

Front

What is the charge of an electron?

Back

Negative.

Front

What determines the identity of an element?

Back

The number of protons in its nucleus.

Front

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

Back

A proton is approximately 1836 times more massive than an electron.