CHAPTER 2

Question 1

Why are stable metal ions have a smaller atomic radius than the metal atoms counterparts?

Answer 1

Due to the lost of the outer shells electrons, the electron force became larger and thus the atomic radius became smaller.

Question 2

Why does a stable non-metal have a larger atomic radius than metal atoms?

Answer 2

They gain the electrons which reduces the attractive force due to increase inner shielding, this causes the atomic radius to become larger.

Question 3

First ionisation energy

Answer 3

Requires enough energy to remove 1 mole of electron from 1 mole of an atom of an element in the gaseous state to form 1 mole of gaseous ion.

Question 4

Successive ionisation energies

Answer 4

The energy require to remove 1st electron then the second and so on from a gaseous atom.