Quelpr
2 marksGroup II Elements

CAPE Chemistry Unit 1 · 2007 · Paper 2 · Question 3(b)(ii)

Radium is a member of the Group II elements and is located at the bottom of the group.

Predict EACH of the following: Ease of reaction between radium and oxygen

The mark scheme is shown once you've answered.

Practise this question

Other parts of this question

  1. 3(a)(i)Describe the reaction of barium metal with water. Include a balanced equation.[4 marks]
  2. 3(a)(ii)Explain why the use of barium sulphate is acceptable in the X-ray analysis even though Ba²⁺ ions are toxic.[2 marks]
  3. 3(b)(i)Predict EACH of the following: Thermal stability of RaCO₃ relative to the other Group II carbonates[2 marks]
  4. 3(c)Magnesium oxide is used in the walls of industrial furnaces. Suggest an explanation for this usage.[2 marks]
  5. 3(d)(i)Identify the gas evolved on heating Compound A.[1 mark]
  6. 3(d)(ii)Identify the TWO gases evolved on heating Compound B.[2 marks]
  7. 3(d)(iii)Deduce the molecular formulae of the two calcium salts. Compound A: Compound B:[2 marks]

More practice: the rest of this paper · more Group II Elements questions · all CAPE Chemistry Unit 1 past papers