Group 2 Metals

Question 1

What happens to the atomic radius down the group in group 2

Answer 1

Increases, due to additional electron shells

Question 2

What happens to the reactivity down the group in group 2

Answer 2

Increases, more shielding down the group makes outer electrons easier to lose

Question 3

What happens to melting point down the group in group 2

Answer 3

Decreases, elements are metallic so the larger the ion the weaker the metallic forces as they have to act over a greater distance

Question 4

How does the solubility of hydroxides change down the group in group 2

Answer 4

Increases

Question 5

How does the solubility of sulphates change down the group in group 2

Answer 5

Decreases ,(barium meals)

Question 6

Flue gas removal equation

Answer 6

Cao + 2H2O + SO2 –> CaSO3 + 2H2O