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JEE Mains · Chemistry · STD 12 - 4. d and f- block elements

प्लेटिनम \(Pt\) (परमाणु क्रमांक \(78\)) का इलेक्ट्रोनिय विन्यास है।

  1. A \([ Xe ]\,4 f ^{14} \,5 d ^{9}\, 6 s ^{1}\)
  2. B \([ Kr ]\, 4 f ^{14} \,5 d ^{10}\)
  3. C \([ Xe ] \,4 f ^{14}\, 5 d ^{10}\)
  4. D \([ Xe ] \,4 f ^{14}\, 5 d ^{8} \,6 s ^{2}\)
Verified Solution

Answer & Solution

Correct Answer

(A) \([ Xe ]\,4 f ^{14} \,5 d ^{9}\, 6 s ^{1}\)

Step-by-step Solution

Detailed explanation

\({ }_{78} Pt =[ Xe ] \,4 f ^{14} \,5 d ^{9}\, 6 s ^{1}\) (Exceptional electronic configuration)
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