Chemistry 5070 · O Level · Isotopes

Isotopes — practice question

An atom of chlorine, Z, has a nucleon number of $37$. Which row is the correct one?

  • ANumber of neutrons in Z: 17; number of electrons in the second shell of Z: 7
  • BNumber of neutrons in Z: 17; number of electrons in the second shell of Z: 8
  • CNumber of neutrons in Z: 20; number of electrons in the second shell of Z: 7
  • DNumber of neutrons in Z: 20; number of electrons in the second shell of Z: 8

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