Which element has the maximum ferromagnetic c | vedclass

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(A) Ferromagnetism is directly related to the number of unpaired electrons in the $d$-orbitals of the metal atoms.Comparing the number of unpaired ele

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$Fe$

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(A) Ferromagnetism is directly related to the number of unpaired electrons in the $d$-orbitals of the metal atoms.Comparing the number of unpaired electrons:$Fe$ $([Ar] 3d^6 4s^2)$: $4$ unpaired electrons.$Co$ $([Ar] 3d^7 4s^2)$: $3$ unpaired electrons.$Ni$ $([Ar] 3d^8 4s^2)$: $2$ unpaired electrons.$Pt$ $([Xe] 4f^{14} 5d^9 6s^1)$: $2$ unpaired electrons.Since $Fe$ has the maximum number of unpaired electrons,it exhibits the strongest ferromagnetic character.

List-$I$ (Property)	List-$II$ (Metal)
$(A)$ Element that can show $+8$ oxidation state	$(1)$ $Mn$
$(B)$ $3d$ series element that can show up to $+7$ oxidation state	$(2)$ $Cr$
$(C)$ $3d$ series element with maximum melting point	$(3)$ $Os$
	$(4)$ $Fe$

Which element has the maximum ferromagnetic character?

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