1.

Whichamong thefollowingtransition andwhichare innertransitionelement ? Sg, Bk, Er, Fm , Fe, Pb, Cr, Ca, Ar, Zr, Ce

Answer»

SOLUTION :Transitionelement `: Sg , Fe , CR, Zr`
Innertransitionelement `: BK , ER , FM , Ce`


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