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Chemistry · May / June 2024 · Paper 11 · Question 3

5070Atomic structure and the Periodic Table

A chlorine atom, Z, has a nucleon number of 37. Which row is correct? | | number of neutrons in Z | number of electrons in the second shell of Z | |---|---|---| | A | 17 | 7 | | B | 17 | 8 | | C | 20 | 7 | | D | 20 | 8 |

  1. A17 | 7
  2. B17 | 8
  3. C20 | 7
  4. D20 | 8

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Correct answer: D. 20 | 8

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