1.

Which of the following lanthanoid ions is diamagnetic ? (Atomic No,: Ce=58, Sm= 62, Eu= 63, Yb= 70)

Answer»

`EU^(2+)`
`YB^(2+)`
`Ce^(2+)`
`Sm^(2+)`

SOLUTION :`""_(70)Yb^(2+): [Xe] 4f^(14)`


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