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BITSAT2012ChemistryClassification of Elements and Periodicity in PropertiesActual

Which of the following does not have valence electron in 3 d -subshell?

Options

  1. AFe(III)
  2. BMn ( II )
  3. CCr ( I )
  4. DP (0)

Correct answer

D. P (0)

Step-by-step solution

P (At no. 15 ) has electronic configuration 1 s², 2 s² p⁶, 3 s² p³, hence no electron in d -subshell.

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