Protons, Neutrons and Electrons

Front

What are protons?

Back

Protons are positively charged particles found in the nucleus of an atom. They determine the atomic number of an element.

Front

What are neutrons?

Back

Neutrons are neutral particles found in the nucleus of an atom. They contribute to the atomic mass but do not affect the charge of the atom.

Front

What are electrons?

Back

Electrons are negatively charged particles that orbit the nucleus of an atom. They are involved in chemical bonding and reactions.

Front

What is the atomic number?

Back

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

Front

How do you calculate the number of neutrons in an atom?

Back

Number of neutrons = Atomic mass - Atomic number.

Front

What is the atomic mass?

Back

The atomic mass is the weighted average mass of an atom's isotopes, measured in atomic mass units (amu).

Front

How many protons are in Gold (Au)?

Back

Gold has 79 protons.

Front

How many electrons are in Gold (Au)?

Back

Gold has 79 electrons.

Front

What is the atomic mass of Neon (Ne)?

Back

The atomic mass of Neon is approximately 20.18 amu.

Front

How many neutrons are in Tungsten (W)?

Back

Tungsten has 110 neutrons.