1.

Which of the following metal is highest electropositive (metallic) in nature?

Answer»

Be
Rb
Mn
Tl

Solution :RUBIDIUM is most electropositive in nature.
(a) `Cr:4s^(1)3d^(5)" `(each d-orbital has `1e^(-)`)
(b) `FE^(3+):4s^(0)3d^(5)`(each d-orbital has `1e^(-)`)
(c) `Cu^(+):4s^(0)3d^(10)`(each d-orbital has `2e^(-)`)


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