বিজোড় ইলেকট্রন সংখ্যার সঠিক ক্রম কোনটি?

A \( \mathrm{Mn}^{2+}>\mathrm{Fe}^{2+}>\mathrm{Cr}^{3+} \)

B \( \mathrm{Mn}^{2+}>\mathrm{Cr}^{3+}>\mathrm{Fe}^{2+} \)

C \( \mathrm{Fe}^{2+}>\mathrm{Cr}^{3+}>\mathrm{Mn}^{2+} \)

D \( \mathrm{Cr}^{3+}>\mathrm{Mn}^{2+}>\mathrm{Fe}^{2+} \)

Solution

Correct Answer: Option A

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