C1.2.2 - Isotopes

Question 1

Define isotopes

Answer 1

Elements of an atom with a different number of neutrons but same protons and electrons

Question 2

Describe the subatomic particles

Answer 2

PROTON: relative mass of 1, positive charge
NEUTRONS: relative mass of 1, no charge
ELECTRON: relative mass of 0.0005, negative charge

Question 3

Define ions

Answer 3

Electrically charged particles formed when an atom gains or loses electrons