Atoms

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

What do we call two atoms of the same element with different mass numbers?

Back

Isotopes

Front

Which two particles determine the mass number of an atom?

Back

Protons and neutrons

Front

If an atom has 10 protons, 10 neutrons, and 10 electrons, what is its mass number?

Back

20

Front

What is the charge of protons?

Back

Positive

Front

What is the charge of electrons?

Back

Negative

Front

What is the center of an atom called?

Back

Nucleus

Front

What is the term for the region around the nucleus where electrons are likely to be found?

Back

Electron cloud

Front

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

Back

Approximately equal