For which element the inertness of the electron pair will not be observed?
Sn
Fe
Pb
In
B.
Fe
Inert pair effect is exhibited only by heavy metals of p-block elements.
When H2S gas is passed in a metal sulphate solution in presence of NH4OH, a white precipitate is produced. The metal is identified as:
Zn
Fe
Pb
Hg
84Rn219 is a member of actinium series. The other member of this series is-
89Ac225
90Th232
15P35
92U235