Atomic Theory and Atomic Structure

Front

Where are electrons likely to be found as they travel around the nucleus?

Back

Electron Cloud

Front

What model for the atom did JJ Thomson propose?

Back

Plum Pudding Model

Front

How is the atomic mass of an atom calculated?

Back

Number of protons plus number of neutrons

Front

What are the subatomic particles that are neutral in charge?

Back

Neutrons

Front

An element with a mass number of 11 and an atomic number of 5 has how many neutrons?

Back

6

Front

What is the charge of protons?

Back

Positive

Front

What is the charge of electrons?

Back

Negative

Front

What is the nucleus of an atom composed of?

Back

Protons and Neutrons

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom

Front

What is the difference between mass number and atomic number?

Back

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