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

Consider circuit in figure. How much energy is absorbed by electrons from the initial state of no current (ignore thermal motion) to the of drift velocity ?

If the binding energy of the electron in a hydrogen atom is 13.6 eV , the energy required to remove the electron from the first excited state of Li^(++) is

The ratio of areas of the electron orbits for the first excited state and the ground state for the hydrogen atom is .....

How much energy is required to send the electron at infinite distance from the n = 3 orbit in He^(+) ?

If the binding energy of the electron in a hydrogen atom is 13.6 eV, the energy required to remove the electron from the first excited state Li^(+2) is .......

Consider the following energies :- 1. minimum energy needed to excite a hydrogen atom 2. energy needed to ionize a hydrogen atom 3. energy released in .^(235)U fission 4. energy released to remove a neutron from a .^(12)C nucleus Rank them in order of increasing value.

As an electron makes a transition from an excited state to the ground state of a hydrogen like atom/ion.