First Ionisation Energies

Question 1

Identify the first ionisation energy for gallium.

Answer 1

585kj/mol

Question 2

Describe the relationship between the atomic number and first ionisation energies across a period.

Answer 2

As the atomic number increases so does the ionisation energy. There is a positive relationship.

Question 3

Describe the relationship between the atomic number and first ionisation energies down a group.

Answer 3

As the atomic number increases, ionisation decreases. This is a negative relationship.