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6 marksStructure and Bonding

CSEC Chemistry · January 2017 · Paper 2 · Question 4(c)(i)

Elements W and X react to form a compound. Their electronic configurations are W: 2,7 and X: 2,8,2.

State the appropriate group and period to which EACH element, W and X, belongs. Hence, indicate the type of bonding that occurs between W and X and write the formula of the compound formed.

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Other parts of this question

  1. 4(a)Define the term 'isotope' and hence show by calculation that ¹²C and ¹³C are isotopes.[3 marks]
  2. 4(b)State THREE other uses of radioisotopes.[3 marks]
  3. 4(c)(ii)Suggest whether the resulting compound will dissolve in water. Explain your answer.[3 marks]

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