Parts of an Atom Review

Front

Where are electrons found?

Back

in the cloud

Front

What is the middle of the atom called?

Back

nucleus

Front

Where is the majority of the mass of an atom found? Options: nucleus, inside the electron cloud, in the electrons, outside the electron cloud

Back

nucleus

Front

Electrons have what charge?

Back

negative

Front

What is the charge of a proton? Options: negative, positive, neutral

Back

positive

Front

What is the charge of a neutron?

Back

neutral

Front

If the number of positive protons equals the number of negative electrons then the charges cancel and the atom is electrically ___________?

Back

neutral

Front

The atomic mass units of _____________ and _____________ have the same weight of 1 amu.

Back

protons and neutrons

Front

In the atom, the lightest particle is the _____________ with a weight of 1/1840 amu.

Back

electron

Front

Which two particles make up the nucleus of an atom?

Back

Protons and Neutrons