Question

15 nm radiation knocks down on electron with energy 4ev from an atom.What is the energy of the electron in the atom

Answer 1

this is the right question and right answer ...

q. how much energy is required in an if you need to exit the electron of a hydrogen atom from ground state to third Orbit ??

ans. According to Bohr's model of hydrogen atom energy of an electronic in initial is given by the equation is equal to -13.6 divided by n square for third Orbit value of any three therefore the energy of third orbit is -1.51 EV for ground state value of anyone there for energy is -13.6 EV to the answer of to your question is -1.5 1 minus bracket -13.6 is equal to 12.09 EV.