2 marksPeriod 3: Sodium to Argon

CAPE Chemistry Unit 1 · 2012 · Paper 2 · Question 6(d)(i)

Sketch a similar diagram to Figure 2 given in 6 (c) to illustrate the variation in the electrical conductivity of the elements in Period 3.

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Other parts of this question

6(a)(i)State the general trend in atomic radii in moving from left to right across Period 3 (from sodium to argon).[1 mark]
6(a)(ii)Give a reason for the trend stated in (i) above.[1 mark]
6(b)(i)Which structure is exhibited by Magnesium?[3 marks]
6(b)(ii)Which structure is exhibited by Silicon?[3 marks]
6(b)(iii)Which structure is exhibited by Sulphur?[3 marks]
6(c)With reference to structure and bonding, account for the variation in melting points shown in the figure.[3 marks]
6(d)(ii)With reference to structure, explain the variations shown on your sketch in (d) (i) above.[3 marks]
6(e)(i)Describe the reaction which occurs when magnesium is heated in dry chlorine gas.[1 mark]
6(e)(ii)Write an equation to represent the reaction in (e)(i) above.[1 mark]

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