How many of the following metal ions have similar value of spin only magnetic moment in gaseous state? ______________ (Given : Atomic number V, 23; Cr, 24; Fe, 26; Ni, 28) V^3+, Cr^3+, Fe^2+, Ni^3+

mu_ s=sqrt n( n+2) BM ( n= no of unpaired electrons) \ll n \ V^3+:[ Ar] 3 d^2 4 s^0 2 \ Cr^3+:[ Ar] 3 d^3 4 s^0 3 \ Fe^2+:[ Ar] 3 d^6 4 s^0 4 \ Ni^3+:[ Ar] 3 d^7 4 s^0 3 Cr^3+ \ Ni^3+ have same value of mu_ s

How many of the following metal ions have similar value... | null (Chemistry)

\mu_{\mathrm{s}}=\sqrt{\mathrm{n}(\mathrm{n}+2)} \mathrm{BM} \quad(\mathrm{n}=\mathrm{no}

of unpaired electrons)

\begin{array}{ll} & n \\ \mathrm{V}^{3+}:[\mathrm{Ar}] 3 \mathrm{~d}^2 4 \mathrm{~s}^0 & 2 \\\\ \mathrm{Cr}^{3+}:[\mathrm{Ar}] 3 \mathrm{~d}^3 4 \mathrm{~s}^0 & 3 \\\\ \mathrm{Fe}^{2+}:[\mathrm{Ar}] 3 \mathrm{~d}^6 4 \mathrm{~s}^0 & 4 \\\\ \mathrm{Ni}^{3+}:[\mathrm{Ar}] 3 \mathrm{~d}^7 4 \mathrm{~s}^0 & 3 \end{array}

\mathrm{Cr}^{3+} ~\&~ \mathrm{Ni}^{3+}

have same value of

\mu_{\mathrm{s}}

Explanation

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