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BITSAT 2012
Exam
BITSAT
Year
2012
Subject
Chemistry
Chapter
Classification of Elements and Periodicity in Properties

BITSAT 2012 · Chemistry · Classification of Elements and Periodicity in Properties

Which of the following does not have valence electron in 3 d...

Which of the following does not have valence electron in 3d3 d -subshell?

Options

  1. AFe(III)
  2. BMn(\mathrm{Mn}(\mathrm{II}))
  3. CCr(\mathrm{Cr}(\mathrm{I}))
  4. DP(0)\mathrm{P}(0)

Correct answer

D. P(0)\mathrm{P}(0)

Step-by-step solution

P\mathrm{P} (At no. 15 ) has electronic configuration 1s2,2s2p6,3s2p3,1 s^{2}, 2 s^{2} p^{6}, 3 s^{2} p^{3}, hence no electron in dd -subshell.
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