Atomic Structure Review

Front

What are the three subatomic particles that make up an atom?

Back

Protons, neutrons, and electrons.

Front

What is the charge of an electron?

Back

Negative.

Front

What is found in the nucleus of an atom?

Back

Protons and neutrons.

Front

How many protons does indium have?

Back

49.

Front

What is the mass of a neutron?

Back

Approximately 1 atomic mass unit (amu).

Front

What is the mass of a proton?

Back

Approximately 1 atomic mass unit (amu).

Front

What is the charge of a proton?

Back

Positive.

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

What is the atomic mass of an element?

Back

The weighted average mass of an atom's isotopes.

Front

What is an isotope?

Back

Atoms of the same element with different numbers of neutrons.