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Question: Answered & Verified by Expert
A transition elements with atomic number 24 will have its magnetic moment
Chemistryd and f Block ElementsCOMEDKCOMEDK 2015
Options:
  • A $5.92 \mathrm{BM}$
  • B $6.93 \mathrm{BM}$
  • C it will be diamagnetic
  • D it will be more than $8 \mathrm{BM}$
Solution:
1685 Upvotes Verified Answer
The correct answer is: $6.93 \mathrm{BM}$
Outer electronic configuration of the element with atomic number 24 is $3 d^{5} 4 s^{1}$.
Number of unpaired electrons $=6$
$$
\begin{aligned}
\mu &=\sqrt{n(n+2)} \mathrm{BM}=\sqrt{6(6+2)}=\sqrt{48} \\
&=6.928=6.93 \mathrm{BM}
\end{aligned}
$$

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