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AP EAMCET2020ChemistryClassification of Elements and Periodicity in Properties

Which among the following is the possible electronic configuration of an element ' X ' having first and second ionization enthalpy values as 520 ~kJ ⁻¹ ~mol ⁻¹ and 7300 ~kJ mol ⁻¹ respectively

Options

  1. A1 s^2 2 s^2 2 p^1
  2. B1 s^2 2 s^2 2 p^3
  3. C1 s^2 2 s^2 2 p^6 3 s^1
  4. D1 s^2 2 s^2 2 p^6 3 s^2 3 p^2

Correct answer

C. 1 s^2 2 s^2 2 p^6 3 s^1

Step-by-step solution

No solution. Refer to answer key.

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