JEE MAIN - Chemistry (2022 - 29th June Morning Shift - No. 4)

The electronic configuration of Pt (atomic number 78) is :
[Xe] 4f14 5d9 6s1
[Kr] 4f14 5d10
[Xe] 4f14 5d10
[Xe] 4f14 5d8 6s2

Explanation

Atomic number of Pt is 78

Electronic configuration is – 78Pt $$ \to $$ [Xe] 4 f14 5d9 6s1 (Exceptional electronic configuration)

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