Chemistry Topic Test

Question 1

Ions

Answer 1

Atoms that have lost or gained electrons and therefore have an electric charge.

Question 2

Ionisation Energy

Answer 2

Energy required to remove the most loosely held atom from an atom in the gaseous phase. This energy helps overcome the electrostatic attraction between the protons and the electrons. IE depends on the nuclear charge and the distance of the valence electrons from the nucleus.

Question 3

Electronegativity

Answer 3

A relative measure of an atoms electron attracting ability in a bond.