Subatomic Particles

Front

What is a subatomic particle?

Back

A subatomic particle is a particle smaller than an atom, which includes protons, neutrons, and electrons.

Front

What charge does a proton have?

Back

A proton has a positive charge.

Front

What charge does a neutron have?

Back

A neutron has no charge (it is neutral).

Front

What charge does an electron have?

Back

An electron has a negative charge.

Front

What are the three main types of subatomic particles?

Back

The three main types of subatomic particles are protons, neutrons, and electrons.

Front

In a neutral atom, what is the relationship between protons and electrons?

Back

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

Front

What is an isotope?

Back

An isotope is a variant of an element that has the same number of protons but a different number of neutrons.

Front

How many protons does a sodium atom have?

Back

A sodium atom has 11 protons.

Front

How many neutrons does a sodium atom typically have?

Back

A sodium atom typically has 12 neutrons.

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.