Atomic structure unit review

Front

What is the measure mainly of the nuclear particles in an atom?

Back

Mass number (the sum of protons and neutrons).

Front

How many neutrons are in Nitrogen-12?

Back

5 neutrons.

Front

What do neutral atoms have an equal number of?

Back

Protons and electrons.

Front

If an atom has 8 protons, 7 neutrons, and 6 electrons, what is its total charge?

Back

+2 charge.

Front

What are subatomic particles with a negative charge called?

Back

Electrons.

Front

What is the charge of protons?

Back

Positive charge.

Front

What is the charge of neutrons?

Back

Neutral (no charge).

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

What is the difference between isotopes of an element?

Back

Isotopes have the same number of protons but different numbers of neutrons.

Front

What is the role of electrons in an atom?

Back

Electrons are responsible for chemical bonding and reactions.