Protons, electrons, Neutrons

Front

What is the atomic mass of Neon?

Back

20

Front

What is the mass of an electron?

Back

0 amu

Front

How many protons are in Beryllium?

Back

4

Front

The number of neutrons equals...

Back

mass number - atomic number

Front

Which two particles make up the nucleus of an atom?

Back

Protons and Neutrons

Front

What is the charge of a proton?

Back

Positive (+1)

Front

What is the charge of a neutron?

Back

Neutral (0)

Front

What is the charge of an electron?

Back

Negative (-1)

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus.

Front

What is the mass number of an atom?

Back

The total number of protons and neutrons.