Atomic Structure

Front

What is the mass number of an atom with 10 protons and 15 neutrons?

Back

25

Front

Where is most of the mass in an atom located?

Back

In the nucleus

Front

What determines the identity of an element?

Back

Number of protons

Front

What are subatomic particles with a negative charge?

Back

Electrons

Front

What does the number 6 represent in atomic notation?

Back

Atomic number

Front

What are protons?

Back

Subatomic particles with a positive charge found in the nucleus.

Front

What are neutrons?

Back

Subatomic particles with no charge found in the nucleus.

Front

What is an electron?

Back

A subatomic particle with a negative charge that orbits the nucleus.

Front

What is the atomic mass?

Back

The weighted average mass of an element's isotopes.

Front

What is the atomic number?

Back

The number of protons in the nucleus of an atom.