The first excited state of `Cl^(-)` will have degenergy of :

Not considering the electron spin, the degeneracy of second excited state of H is 9, while the degeneracy of then first excited state of H^(-) is :

Not considering the electron spin, the degeneracy of second excited state of H is 9, while the degeneracy of then first excited state of H^(-) is :

Determine the energies of the first excited states of the electron in hydrogen atom. What are excitation energies of the electron in these orbits?

The first excited state of hydrogen atom is 10.2 eV above its ground state. The temperature is needed to excite hydrogen atoms to first excited level is

The first excited state of hydrogen atom is 10.2 eV above its ground state. The temperature is needed to excite hydrogen atoms to first excited level is

The first excited state of hydrogen atom is 10.2 eV above its ground state. The temperature is needed to excite hydrogen atoms to first excited level is

The first excited state of hydrogen atom is 10.2 eV above its ground state. The temperature is needed to excite hydrogen atoms to first excited level is