Atomic Structure

Front

Subatomic particles with a positive charge

Back

Protons are subatomic particles found in the nucleus of an atom that have a positive charge.

Front

How many neutrons does a Hydrogen atom have?

Back

A Hydrogen atom has 0 neutrons.

Front

How is the number of neutrons in the nucleus of an atom calculated?

Back

The number of neutrons is calculated by subtracting the number of protons from the mass number.

Front

How many neutrons does an Oxygen atom have?

Back

An Oxygen atom has 8 neutrons.

Front

All ____________ are made up of two or more atoms bonded together.

Back

Molecules are made up of two or more atoms bonded together.

Front

What is the center of an atom called?

Back

The nucleus is the center of an atom, containing protons and neutrons.

Front

What are the three main subatomic particles?

Back

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

Front

What charge do neutrons have?

Back

Neutrons have no charge; they are neutral.

Front

What is the mass number of an atom?

Back

The mass number is the total number of protons and neutrons in the nucleus of an atom.

Front

What is an isotope?

Back

Isotopes are atoms of the same element that have the same number of protons but different numbers of neutrons.