3.1.1

Question 1

What is first ionisation energy

Answer 1

The amount of energy required to remove 1 mol of electrons from 1 mol of gaseous atoms to form 1 mole of gaseous 1+ ions

Question 2

What factors affect ionisation energy

Answer 2

Atomic radius
Nuclear charge
Electron shielding
Nuclear attraction

Question 3

Why does ionisation energy decrease between group 2 and 3

Answer 3

The outer electrons in group 3 are in p orbitals, but in group 2, they are in s orbitals, so the electron is easier to remove in group 3.

Question 4

What is the trend in ionisation energy down a group

Answer 4

It decreases- overall less Nuclear attraction
Shielding increases
Atomic radius increases
Greater Nuclear charge

Question 5

What is the trend in ionisation energy across a period

Answer 5

It increases- overall greater Nuclear attraction
Atomic radius decreases
Greater Nuclear charge
Shielding stays the same

Question 6

What are the properties of giant metallic lattices

Answer 6

High mp/bp
Good conductors
Malleability
Ductile