ATOMS

Front

What is the central region of an atom called?

Back

The nucleus is the central region of an atom where its neutrons and protons are located.

Front

What does the atomic number represent?

Back

The atomic number represents the number of protons in an atom, which also determines the element.

Front

What is the atomic number of an element with three protons?

Back

The atomic number is 3.

Front

What are atoms mostly made up of?

Back

Atoms are mostly made up of empty space.

Front

What is the part of the atom that moves around the nucleus?

Back

Electrons are the particles that move around the nucleus.

Front

What do atoms make up?

Back

Atoms make up everything living and nonliving.

Front

What are the three main particles in an atom?

Back

The three main particles in an atom are protons, neutrons, and electrons.

Front

Where are protons located in an atom?

Back

Protons are located in the nucleus of an atom.

Front

What is the charge of a neutron?

Back

Neutrons have no charge; they are neutral.

Front

What is the charge of an electron?

Back

Electrons have a negative charge.