Justify the position of hydrogen in the peiriodic table on the basis of its electronic configuration.

Justify the position of hydrogen in the periodic table on the basis of its electronic configuration.

Which one has no stable electronic configuration-

Justify the position of zero group in Mendeleev's periodic table.

Determine the position of an element in long form of periodic table if its electronic configuration is [""_(18)Ar]3d^(10)4s^(2) .

Determine the position of an element in long form of periodic table if its electronic configuration is [_18Ar]3d^10 4s^2 .

The electronic configuration of Cu is

Write the electronic configuration of copper.

Transition metals have the electronic configuration :