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2 marksPeriodic Table and Periodicity

CSEC Chemistry · May/June 2008 · Paper 2 · Question 2(a)

Figure 2 shows a part of the periodic table, indicating the positions of fluorine (F), chlorine (Cl), bromine (Br), iodine (I), and astatine (At).

Identify the group in the periodic table in which fluorine (F), chlorine (Cl), bromine (Br), iodine (I) and astatine (At) are placed. Give ONE reason for your answer.

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Other parts of this question

  1. 2(b)What would the students observe when they conduct the experiment represented in Figure 3? Illustrate your answer by means of an equation.[3 marks]
  2. 2(c)(i)Deduce whether X and Y are metals or nonmetals.[2 marks]
  3. 2(c)(ii)Based on your answer to (c) (i) above, describe the bonding in Element Y.[2 marks]
  4. 2(c)(iii)Predict the type of bond that would be formed between X and oxygen. Give a reason for your answer.[2 marks]
  5. 2(c)(iv)Based on the information given in Table 3, arrange the elements Mg, X and Y in order of decreasing activity. Explain your answer.[4 marks]

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