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Chemistry · May / June 2023 · Paper 11 · Question 2

5070Atomic structure and the Periodic Table

X, Y and Z are elements. X and Y are in the same period of the Periodic Table. Y and Z are in the same group of the Periodic Table. What are possible electronic configurations for X, Y and Z?

  1. A2,4 2,7 2,8,4
  2. B2,4 2,7 2,8,7
  3. C2,4 2,8,4 2,8,7
  4. D2,8,4 2,8,7 2,4

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Correct answer: B. 2,4 2,7 2,8,7

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