U3.1 Atom Structure Practice

Front

What is the basic unit of matter?

Back

Atoms

Front

What are the particles in an atom that have no charge?

Back

Neutrons

Front

To be a neutral atom, how many electrons must an atom with 12 protons have?

Back

12 electrons

Front

What particle moves around the nucleus of an atom?

Back

Electron

Front

What is the charge of a proton?

Back

Positive

Front

What is the charge of an electron?

Back

Negative

Front

What is the nucleus of an atom made of?

Back

Protons and neutrons

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

If an atom has 7 protons, what is its atomic number?

Back

7

Front

What is the mass of a neutron compared to a proton?

Back

Approximately the same.