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Chemistry · May / June 2019 · Paper 12 · Question 29

5070Atomic structure and the Periodic Table

Three different elements react by losing electrons. The ions formed all have the electronic configuration 2,8. Which statement about these elements is correct?

  1. AThey are in the same group.
  2. BThey are in the same period.
  3. CThey are noble gases.
  4. DThey are transition elements.

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Correct answer: B. They are in the same period.

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