Structure of the Atom

Question 1

What are the parts of an atom?

Answer 1

• proton (nucelus)
• electron (shells)
• neutron (nucleus)

Question 2

What is the relative charge of a proton, neutron, and electron?

Answer 2

Proton: +1
Neutron: 0
Electron: -1

Question 3

What are the relative masses of the proton, neutron and electron?

Answer 3

P - 1
N - 1
E - negligible

Question 4

What is the difference between the ‘atomic number’ and ‘mass number’?

Answer 4

The atomic number shows the amount of protons, whereas the mass number shows the total amount of protons and neutrons.