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CAPE Chemistry Unit 1 · 2008 · Paper 2 · Question 6(a)(i)

This section covers the chemistry of elements, focusing on Period 3 elements and Group II elements. Table 3 provides atomic radii and melting points for Period 3 elements.

State and account for the trend in the values of the atomic radii across the period from Na to Cl.

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  1. 6(a)(ii)The trend in the melting points of the elements in Table 3 is related to structure and bonding. Describe the trend in the structure of the elements, and the…[5 marks]
  2. 6(b)(i)Compare the reaction of the Group II elements, Be and Ca, with water.[2 marks]
  3. 6(b)(ii)Describe what happens when barium is treated with water and write the equation for the reaction.[3 marks]
  4. 6(c)State ONE use of calcium carbonate.[1 mark]

More practice: the rest of this paper · more Period 3: Sodium to Argon questions · all CAPE Chemistry Unit 1 past papers