Chapter 7- Periodicity

Question 1

Define the first ionization energy

Answer 1

The energy required to to remove one electron from each atom in one mole of gaseous atoms of an element to form one mole of gaseous 1+ ions

Question 2

Define the second ionisation energy

Answer 2

The energy required to remove one electron from each ion in one mole of gaseous 1+ ions of an element to form one mole of gaseous 2+ ions

Question 3

What are the three factors that affect ionisation energy?

Answer 3

Atomic radius, nuclear charge, electron shielding