MEDIUM
AS and A Level
IMPORTANT
Earn 100

i) Describe how the atomic radius varies across Periods 2 and 3.
ii) Explain this trend.

Important Questions on Periodicity
EASY
AS and A Level
IMPORTANT
(i) Describe how the atomic radius varies down each group of the periodic table.
(ii) Explain this trend.

MEDIUM
AS and A Level
IMPORTANT
Describe the acid-base nature of the solutions obtained when sodium chloride is added to water. Use equations to illustrate your answer.

MEDIUM
AS and A Level
IMPORTANT
Describe the acid-base nature of the solutions obtained when sulphur trioxide is added to water. Use equations to illustrate your answer.

MEDIUM
AS and A Level
IMPORTANT
Describe the acid-base nature of the solutions obtained when sodium oxide is added to water. Use equations to illustrate your answer.

MEDIUM
AS and A Level
IMPORTANT
Describe the acid-base nature of the solutions obtained when phosphorus(V) chloride is added to water. Use equations to illustrate your answer.

MEDIUM
AS and A Level
IMPORTANT
i) Write an equation for the reaction of magnesium with cold water.
ii) Predict and explain the of the resulting solution.
