What is the charge of a proton, neutron and electron?
Proton: Positive Neutron: Neutral Electron: Negative
Proton: Negative Neutron: Neutral Electron: Negative
Proton: Neutral Neutron: Positive Electron: Negative
What is the relative mass of a proton, neutron and an electron?
Proton: 0 Neutron: 1 Electron: 0
Proton: 1 Neutron: 1 Electron: almost 0
Proton: 1 Neutron: 1 Electron: 0
How many electrons can each shell of an atom hold?
2,8,4
2,8,8
3,8,8
How do you work out an atom's mass number?
Add the protons and the electrons
Subtract the number of neutrons from the protons
Add the number of protons and neutrons
How can you show electrons on a diagram of an atom?
Dots or crosses
Asterisks
Lines
