Atomic Structure

Front

What are the three main subatomic particles in an atom?

Back

Protons, neutrons, and electrons.

Front

What charge do neutrons carry?

Back

Neutrons carry no charge (they are neutral).

Front

What is the charge of protons?

Back

Protons carry a positive charge.

Front

What is the charge of electrons?

Back

Electrons carry a negative charge.

Front

What is the atomic number of an element?

Back

The atomic number is the number of protons in the nucleus of an atom.

Front

What is the mass number of an atom?

Back

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

Front

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

Back

Subtract the atomic number from the mass number.

Front

What is an element?

Back

An element is a pure substance that cannot be broken down into simpler substances by chemical means.

Front

What is a molecule?

Back

A molecule is a group of two or more atoms bonded together.

Front

What is the difference between an atom and a molecule?

Back

An atom is the smallest unit of an element, while a molecule is a group of atoms bonded together.