Chemistry 9701 · AS & A Level · Atomic structure

Atomic structure — practice question

During analysis of chlorine gas using a mass spectrometer, $^{35}\text{Cl}^+$ ions are detected. Which row is correct?

  • Anumber of neutrons = $17$; electronic configuration $= 1s^2 2s^2 2p^6 3s^2 3p^4$
  • Bnumber of neutrons = $17$; electronic configuration $= 1s^2 2s^2 2p^6 3s^2 3p^6$
  • Cnumber of neutrons = $18$; electronic configuration $= 1s^2 2s^2 2p^6 3s^2 3p^4$
  • Dnumber of neutrons = $18$; electronic configuration $= 1s^2 2s^2 2p^6 3s^2 3p^6$

Worked solution & mark scheme

This 1-mark question has a full step-by-step worked solution and mark scheme.

  • Full mark scheme, point by point
  • Step-by-step worked solution
  • Write your answer & get it marked instantly by AI