This energy diagram shows the allowed energy levels of an electron in a certain atom or molecule: Use this diagram to complete the table below.

since A is the ground state and the other energy levels B and C are above it...they are excited statEs(having more energy than ground)
1.so there are 2 excited states
it can jump from A-B and B-C and A-C by absorbing energy..
2. so there are 3 absorbing lines
since energy is inversely proportional to wavelength
3.because A-C is having more energy gap it shows smallest wavelenght
4.because B-Cis having less energy gap it will cause mission of largest wavelenght