Atoms and Ions

Question 1

Relative Mass and Relative Charge of protons, neutrons and electrons

Answer 1

relative mass

proton: 1
neutron: 1
electron: 1/1840

relative charge

proton: +1
neutron: 0
electron: -1

Question 2

What are nucleons?

Answer 2

Protons and neutrons in atoms

Question 3

Isotopes

Answer 3

Isotopes are atoms of the same element that have different numbers of neutrons
Have the same chemical properties but different physical properties

Question 4

Nucleon number

Answer 4

gives total number of protons and neutrons in the nucleus

Question 5

Proton number

Answer 5

gives total number of protons in the atom

electron number = proton number