Z=29(Cu)
Cu2+ form [Cu(H2O)4]2+ complex ion with H2O
[Cu(H2O)4]2+⇒Cu2+[Ar]3d9,H2O→WFL

number of unpaired e−=1
μ=1(1+2)B.M
μ=3⇒1.73B.M.⇒round off ans. ⇒2
The spin only magnetic moment of a divalent ion in aqueous solution (atomic number 29) is ___ BM.
Held on 25 Feb 2021 · Verified 6 Jul 2026.
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