Unit 1 Review QUiz

Front

Isotopes of an element have different number of ___________ and therefore have different masses.

Back

Neutron

Front

What Greek philosopher suggested that the universe was made of invisible units called atoms?

Back

Democritus

Front

All matter is made of __________.

Back

Atoms

Front

Which particle does not have a charge?

Back

Neutron

Front

If an atom has an atomic mass of 11 and contains 5 electrons, its atomic number would be______

Back

5

Front

What is the smallest unit of an element that retains the properties of that element?

Back

Atom

Front

What are the three main subatomic particles?

Back

Protons, Neutrons, Electrons

Front

What is the charge of a proton?

Back

Positive

Front

What is the charge of an electron?

Back

Negative

Front

What is the charge of a neutron?

Back

Neutral