Atomic Structure

Question 1

What are atoms made of?

Answer 1

Nucleus which contains protons and neutrons

Electrons which whizz around the nucleus in orbitals.

Question 2

What are the relative charges and relative masses of Protons, Neutrons and Electrons

Answer 2

Relative Charge
Electron = -1
Neutron = 0
Proton = +1

Relative Mass
Electron = 1/2000
Proton = 1
Neutron = 1