m3 - group 2

Question 1

which electrons are lost in reactions

Answer 1

outer shell s2 electrons
Mg: 1s2 2s2 2p6 3s2 (would lose 3s2)

Question 2

ionisation energy trend DOWN the group

Answer 2

IE decreases (shielding and atomic radius increases, so overall attraction for the outer shell e- decreases)

Question 3

alkalinity down the group

Answer 3

gets more alkaline/higher pH

Question 4

reactivity down the group

Answer 4

more reactive down the group, electrons are lost more easily
more vigorous