the energy levels for ` Z^(+z-1)` can be given by :

Consdier the following energy level diagram: In the given diagram z refer to

Hydrogen atom: The electronic ground state of hydrogen atom contains one electron in the first orbit. If sufficient energy is provided, this electron can be promoted to higher energy levels. The electronic energy of a hydrogen-like species (any atom//ions with nuclear charge Z and one electron) can be given as E_(n)=-(R_(H)Z^(2))/(n^(2)) where R_(H)= "Rydberg constant," n= "principal quantum number" The energy required to promote the ground state electron of H-atom to the first excited state is: When an electron returns from a higher energy level to a lower energy level, energy is given out in the form of UV//Visible radiation.

The number of electrons in the highest principal energy level for an element(Z=26) is

z_(1) and z_(2), lie on a circle with centre at origin. The point of intersection of the tangents at z_(1) and z_(2) is given by

z_1a n dz_2 lie on a circle with center at the origin. The point of intersection z_3 of he tangents at z_1a n dz_2 is given by 1/2(z_1+( z )_2) b. (2z_1z_2)/(z_1+z_2) c. 1/2(1/(z_1)+1/(z_2)) d. (z_1+z_2)/(( z )_1( z )_2)

z_1a n dz_2 lie on a circle with center at the origin. The point of intersection z_3 of he tangents at z_1a n dz_2 is given by 1/2(z_1+( z )_2) b. (2z_1z_2)/(z_1+z_2) c. 1/2(1/(z_1)+1/(z_2)) d. (z_1+z_2)/(( z )_1( z )_2)

z_1a n dz_2 lie on a circle with center at the origin. The point of intersection z_3 of the tangents at z_1a n dz_2 is given by a. 1/2(z_1+( z )_2) b. (2z_1z_2)/(z_1+z_2) c. 1/2(1/(z_1)+1/(z_2)) d. (z_1+z_2)/(( z )_1( z )_2)