Atomic Structure – Unit 1 Review

Front

What is the relationship between the number of protons and the atomic number?

Back

The atomic number is equal to the number of protons in an atom.

Front

Why is the nucleus of an atom important?

Back

It contains protons and neutrons, which make up most of the atom's mass.

Front

Which atom has 4 neutrons?

Back

Li-7

Front

What does the atomic mass number represent?

Back

The sum of protons and neutrons in an atom.

Front

What is a negative ion called?

Back

Anion.

Front

What particles are found in the nucleus of an atom?

Back

Protons and neutrons.

Front

What is the charge of a proton?

Back

Positive.

Front

What is the charge of a neutron?

Back

Neutral.

Front

What is the charge of an electron?

Back

Negative.

Front

How do you determine the number of neutrons in an atom?

Back

Subtract the atomic number from the atomic mass number.