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2 marksPeriodic Table and Periodicity

CSEC Chemistry · May/June 2019 · Paper 2 · Question 2(a)

Table 2 lists the chemical symbols and atomic numbers for elements in Period 3 of the Periodic Table.

Explain why these elements are all placed in Period 3 of the Periodic Table.

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Other parts of this question

  1. 2(b)Which element in Table 2 forms an oxide which readily dissolves in water to give a solution with a pH greater than 7? Write a balanced equation to support your…[3 marks]
  2. 2(c)The element sulfur, S, can exist as different allotropes. Define the term 'allotrope'.[1 mark]
  3. 2(d)Draw a diagram to show the arrangement of electrons in sulfur.[2 marks]
  4. 2(e)(i)State the type of bond that forms when sulfur reacts with chlorine.[1 mark]
  5. 2(e)(ii)Explain why the type of bond stated in (e)(i) is formed.[3 marks]
  6. 2(f)Write the formula of a compound which is formed when sulfur reacts with chlorine.[1 mark]
  7. 2(g)Draw a dot and cross diagram to show the bonding in the compound stated in (f).[2 marks]

More practice: the rest of this paper · more Periodic Table and Periodicity questions · all CSEC Chemistry past papers