1.The energy of an electron in the first Bohr orbit of H atom is- 13.6 eV. The possible value of the excited state for electron in Bohr orbits of hydrogen is

2.The ratio of specific charge of an electron to that of a proton is

3.According to Bohrs atomic model

4.The maximum number of electrons in p-orbital with n = 6, m = 0 is

5.Which combinations of quantum number n, l, m, s for the electron in an atom does not provide a permissible solution of the wave equation?