Protons, Neutrons and Electrons

Front

What is a proton?

Back

A positively charged particle found in the nucleus of an atom.

Front

What is the charge of a neutron?

Back

Neutrons have no charge; they are neutral particles found in the nucleus.

Front

What is the charge of an electron?

Back

Electrons are negatively charged particles that orbit the nucleus of an atom.

Front

How many protons are in a neutral atom?

Back

In a neutral atom, the number of protons is equal to the number of electrons.

Front

What is the atomic number of an element?

Back

The atomic number is the number of protons in the nucleus of an atom, which determines the element's identity.

Front

How many protons are in Chlorine?

Back

Chlorine has 17 protons.

Front

How many electrons are in Sulfur?

Back

Sulfur has 16 electrons.

Front

How many electrons are in Aluminium?

Back

Aluminium has 13 electrons.

Front

What is the mass of an oxygen atom?

Back

Oxygen has a mass of approximately 16 atomic mass units (amu).

Front

What is the relationship between protons and electrons in a neutral atom?

Back

In a neutral atom, the number of protons equals the number of electrons.