Which of the following is not correctly matched? - Vidyadip

MCQ

Which of the following is not correctly matched?

A
$Z = 48;$ group no. $12^{th},$ period no. $= 5^{th}$
✓
$[Xe]\,4f^7\,5d^1\,6s^2;$ group no $= 8^{th},$ period no. $= 6^{th}$
C
$[Rn]\,6d^3\,5f^{14}\,7s^2;$ group no. $5^{th},$ period no. $= 7^{th}$
D
$Z = 56;$ group no. $2^{nd},$ period no. $= 6^{th}$

✓

Answer

Correct option: B.

$[Xe]\,4f^7\,5d^1\,6s^2;$ group no $= 8^{th},$ period no. $= 6^{th}$

b

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