Protons, Neutrons, Electrons

Front

What determines the mass number of an element?

Back

The mass number of an element is determined by the total number of protons and neutrons in the nucleus.

Front

How many neutrons are in magnesium (Mg)?

Back

Magnesium has 12 neutrons.

Front

What is all matter made of?

Back

All matter is made of atoms.

Front

How many protons are in Beryllium (Be)?

Back

Beryllium has 4 protons.

Front

What are the positive particles of an atom?

Back

The positive particles of an atom are protons.

Front

What is the charge of a proton?

Back

A proton has a positive charge.

Front

What is the charge of a neutron?

Back

A neutron has no charge (it is neutral).

Front

What is the charge of an electron?

Back

An electron has a negative charge.

Front

Where are protons located in an atom?

Back

Protons are located in the nucleus of an atom.

Front

Where are electrons located in an atom?

Back

Electrons are located in the electron cloud surrounding the nucleus.