Group 2 🪨

Question 1

What is the trend of reactivity of Group 2 elements?

Answer 1

increases down the group

Question 2

What is the trend in boiling point of group 2 elements?

Answer 2

Boiling point decreases

Question 3

Define an alkali

Answer 3

Soluble base that releases OH- ions in aqueous solutions

Question 4

What happens to the solubility of group 2 hydroxides down the group and how would they effect the PH of these solutions?

Answer 4

Solubility of hydroxides increase in group 2, so increase in PH

Question 5

State a use for
-Magnesium hydroxide
-Calcium carbonate

Answer 5

Indigestion tablets

Question 6

State a use for calcium hydroxide?

Answer 6

Agriculture

Question 7

What is the trend in ionisation energy for group 2 elements? And why?

Answer 7

-ionisation energy decreases
-More shells
-More shielding
-Distance out weighs increase in nuclear charge
-less energy is needed to remove an electron

Question 8

What are the products from a reaction between G2 element and oxygen?

Answer 8

Metal Oxide

Question 9

What are the products from a reaction between G2 element and Water?

Answer 9

Metal hydroxide + hydrogen

Question 10

What are the products from a reaction between G2 element and dilute acid?

Answer 10

Salt and hydrogen (MASH)