Ionisation Energy

Question 1

Ionisation energy def

Answer 1

The measure of energy needed to remove an electron from an atom

Question 2

First ionisation energy (IE1) def

Answer 2

The energy required to remove the first electron from the ground state of one mole of neutral gaseous atoms

Question 3

Factors the affect first ionisation energy

Answer 3

Moving from left to right within a period or upward within a group, the first ionisation energy generally increases.