EASY
AS and A Level
IMPORTANT
Earn 100
Working as a pair, one person explains to the other how a magnesium ion is formed from a magnesium atom. Then the other person explains the formation of an oxide ion. Finally discuss together how the ions form ionic bonds in the compound, magnesium oxide.
Important Questions on Group 2
EASY
AS and A Level
IMPORTANT
Limestone rock is mined from huge quarries before being taken to lime kilns to be roasted. In a small group, discuss some environmental impacts of using the world's most common building material, concrete.
EASY
AS and A Level
IMPORTANT
When lightning strikes during a thunderstorm, the rain that falls is a dilute solution of nitric acid (). Work with a partner to write a balanced chemical equation, including state symbols, to show how slaked lime (calcium hydroxide) added to the soil can neutralise nitric acid.
EASY
AS and A Level
IMPORTANT
Justify which is the more important use of a Group 2 compound: making concrete or raising the pH of soil.
MEDIUM
AS and A Level
IMPORTANT
Give the general trend in the melting points going down Group 2. Which element breaks the trend?
EASY
AS and A Level
IMPORTANT
Explain why the atoms in Group 2, as in any other group, get larger with increasing atomic number.
EASY
AS and A Level
IMPORTANT
State the charge you would expect the ions of Group 2 elements to carry.
EASY
AS and A Level
IMPORTANT
Predict whether the ions of group 2 elements will be larger or smaller than their atoms.
EASY
AS and A Level
IMPORTANT
Radium () is a radioactive element found below barium at the bottom of Group 2. Working with a partner, apply your knowledge of trends in Group 2 to discuss and predict its melting point.
