Q83 / 270 · NDA 2017 (Phase 2) · General Ability

The species that has the same number of electrons as ${ }_{17}^{35} \mathrm{Cl}$ is

  • A
    ${ }_{16}^{35} \mathrm{~S}$
  • B
    ${ }_{16}^{34} \mathrm{~S}^{+}$
  • Correct answer
    C
    ${ }_{18}^{40} \mathrm{Ar}^{+}$
  • D
    ${ }_{16}^{35} \mathrm{~S}^{2-}$

Solution

Number of electrons = Number of protons =Atomic number.

Hence, the correct answer is option: 'C'.

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