Question

Which one of the following actinoid has no electron in $6d$ orbital?

• A. $Pa$
• B. $Np$
• C. $Lr$
• D. $Cm$
• E. $Pu$

Answer 1

Answer: (E)

$Pu[Rn]5f^{6}7S^2$
No electron in $6d$ orbital