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 are subatomic particles that are neutral in charge?

Back

Neutrons

Front

What are subatomic particles with a positive charge?

Back

Protons

Front

What is the atomic number of an atom with 9 protons?

Back

9

Front

What is the charge of electrons?

Back

Negative

Front

What is the relationship between protons and atomic number?

Back

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

Front

What is the charge of protons?

Back

Positive

Front

What is the difference between mass number and atomic number?

Back

Mass number is the sum of protons and neutrons, while atomic number is the number of protons.

Front

What are the three main subatomic particles?

Back

Protons, neutrons, and electrons.