What happens, when an electron. is in excited state ?

What happens when an electron gains energy ?

What happens when an object is suitably excited by heating ?

The ground state energy of hydrogen atom is - 13.6 eV. When electron is in excited state its excitation energy is ......

In a hydrogen atom, the electron is in n^(th) excited state. It may come down to second excited state by emitting ten different wavelengths. What is the value of n ?

In a hydrogen atom, the electron is in n^(th) excited state. It may come down to second excited state by emitting ten different wavelengths. What is the value of n ?

In a hydrogen atom, the electron is in n^(th) excited state. It may come down to second excited state by emitting ten different wavelengths. What is the value of n ?

The ground state energy of hydrogen atom is -13.6eV. When its electron is in the first excited state, its excitation energy is