Atomic Structure

Front

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

Back

Protons and Neutrons

Front

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

Back

9

Front

What is the mass number?

Back

The number of protons and neutrons in the nucleus.

Front

What must an atom with 12 positively charged subatomic particles have to be neutral?

Back

12 electrons

Front

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

Back

7

Front

What are protons?

Back

Positively charged subatomic particles found in the nucleus.

Front

What are neutrons?

Back

Neutral subatomic particles found in the nucleus.

Front

What are electrons?

Back

Negatively charged subatomic particles that orbit the nucleus.

Front

How do you calculate the mass number of an atom?

Back

Add the number of protons and neutrons.

Front

What is the charge of a proton?

Back

Positive.