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SSC CHSL 2022 PYQ — Question 34

SSC CHSL - 27 May 2022 - Shift 3 • General Awareness • Q34

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In the electronic configuration of an atom, What does ‘n’ signify in the formula 2n2?

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Correct answer: C

Explanation

The correct answer is option 3 i.e. The number of the given shell from the nucleus.

  • The principal quantum number, n, describes the energy of an electron and the most probable distance of the electron from the nucleus.
  • 'n' describes the most probable distance of the electrons from the nucleus, the larger the number n is, the farther the electron is from the nucleus, the larger the size of the orbital, and the larger the atom is.