How much work must be done to pull apart the electron and the proton that make up the Hydrogen atom, if the atom is initially in the state with `n = 2` ?

How much work must be done to pull apart the electron and the proton that make up the hydrogen atom if the atom is initially in (a) its ground state and (b) the state with n = 2?

How much energy is needed is to releases the electron from the second excited state in the hydrogen atom ?

The work that must be done to remove an electron from an atom is called its

The energy necessary to remove the electron from n=10 state hydrogen atom will be

An electron and a proton are separated by a large distance and the electron approaches the proton with a kinetic energy of 2 eV. If the electron is captured by the proton to form a hydrogen atom in the ground state, what wavelength photon would be given off?

How much energy must be supplied to hydrogen atom, to free (remove) the electron in the ground state?

State the location of electrons, protons, protons and neutrons in an atom.

In an inelastic colliston an electron excites as hydrogen atom from its ground state to a M- shell state ,A second electron collides instantaneously with the excited hydrogen atom to the atom in the M- state.At least how much energy the second electron transfers to the atom in the M-shell state?

The energy required to remove an electron in a hydrogen atom from n=10 state is