Atomic Structure

Front

What must be true for an atom to be neutral?

Back

The atom has the same number of protons and electrons.

Front

What makes up most of the mass in an atom?

Back

Protons and neutrons.

Front

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

Back

Protons and neutrons.

Front

What is the mass number of an atom with 7 total nucleons?

Back

7.

Front

How many neutrons are in an element with a mass number of 11 and an atomic number of 5?

Back

6.

Front

What is an atom?

Back

The smallest unit of matter that retains the properties of an element.

Front

What are protons?

Back

Positively charged subatomic particles found in the nucleus of an atom.

Front

What are neutrons?

Back

Neutral subatomic particles found in the nucleus of an atom.

Front

What are electrons?

Back

Negatively charged subatomic particles that orbit the nucleus of an atom.

Front

What is atomic number?

Back

The number of protons in the nucleus of an atom, which determines the element.