The atomic radius along the 3d series decreases. Explain on the basis of their electron configuration. 

Which of the following is the number of electron present in X^(2+) on the basis of electronic configuration if the ion X^(3-) has 14 protons ?

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

The electronic configuration of Ag atom is

Compare the properties of a typical metal and a nonmetal on the basis of the following: Electronic configuration

An elements P has atomic no. 13. Write its electronic configuration

A metal has electronic configuration [Ar]^(18)3d^7 4s^2 .On the basis of this electronic configuration find out the group number.

On moving along the period , the atomic radii decreases. Explain.

Name one material whose resistivity decreases with rise in temperature. Explain briefly on the basis of free electron theory why the resistivity decreases.

The first ionization energy is smallest for the atom with electronic configuration?

The electronic configuration of Sc^(3+) is: