Atomic Theory

Front

What is the basis of the electron cloud model?

Back

Quantum Mechanics

Front

What particles are found in the nucleus of an atom?

Back

Protons and neutrons.

Front

What is the overall charge of an atom?

Back

Neutral.

Front

Who discovered the electron?

Back

JJ Thomson.

Front

What part of the atom did Rutherford discover?

Back

The nucleus.

Front

What is the charge of a proton?

Back

Positive.

Front

What is the charge of a neutron?

Back

Neutral.

Front

What is the charge of an electron?

Back

Negative.

Front

What is the significance of the atomic number?

Back

It represents the number of protons in an atom and determines the element's identity.

Front

What is the mass number of an atom?

Back

The total number of protons and neutrons in the nucleus.