Inorganic Chemistry and the Periodic Table

Question 1

Describe the trend in atomic radius in group 2 elements.

Answer 1

Increases as you go down the group

Question 2

Describe and explain the trend in reactivity in group 2 elements.

Answer 2

Increased electron shielding & atomic radius, as you go down the group, makes it easter to lose the outermost electron therefore increasing reactivity

Question 3

Describe and explain the trend in 1st ionisation energy in group 2 elements.

Answer 3

1st IE decreases down the group due to greater ionic radii & shielding making it easier to lose the outermost electron

Question 4

Describe the reaction of (G2 metals) magnesium burning with oxygen or steam.

Answer 4

Reacts to form MgO, a white powder, (Mg(OH)2 and hydrogen in steam). Burns as a bright white flame. (different coloured flame for different metals)

Question 5

Describe the reaction of (G2 metals) magnesium with water.

Answer 5

Produces Mg(OH)2 and hydrogen gas. (different coloured flame for some metals as hydrogen also burns)

Question 6

Describe the reaction of (G2 metals) magnesium with chlorine gas.