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Transition and Inner Transition Elements — Chemistry STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 ScienceChemistryTransition and Inner Transition Elements1 Mark
MCQ
The observed electronic configuration of copper is
  • A
    $[ Ar ]^{18} 3 d^9 4 s^2$
  • B
    $[ Kr ] 3 d ^{10} 45^1$
  • C
    $[ Kr ] 3 d ^9 4 s ^2$
  • ✓
    $[ Ar ] 3 d ^{10} 45^1$
✓

Answer

Correct option: D.
$[ Ar ] 3 d ^{10} 45^1$
$[ Ar ] 3 d ^{10} 45^1$

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