Atomic Structure

Front

What is the total number of protons and neutrons in an atom called?

Back

Mass number

Front

Which subatomic particles are found in the nucleus of an atom?

Back

Protons and Neutrons

Front

What is the mass number of a nickel atom with 28 protons, 31 neutrons, and 28 electrons?

Back

59

Front

What is the mass number of an element that has 18 protons, 18 electrons, and 19 neutrons?

Back

37

Front

Where is most of the mass in an atom located?

Back

In the nucleus

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

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

How do you calculate the mass number of an atom?

Back

Add the number of protons and neutrons.