An electron of `H_1^1`atom is on the 4th excited state. How many spectrum can be observed?

The electron in a hydrogen atom is excited to the n -th excited state. How many possible spectral lines can it emit in transtion to the ground state ?

The electron in a hydrogen atom is in the third energy state. How many different frequencies can the emitted photon have ?

The observed wavelength in the line spectrum of hydrogen atom were first expressed in term of a series of johann jakob Balmer a series teacher Balmer's empirical formula is 1/lambda=R_H(I/2^2-I/N^2)"________"n ge 3 ,R_H=109678cm^-1 is Rydberg constant.Niele Bohr derived this expression theoretically in 1913 the formula is generalised to any uni electronic species. How many lines in the spectrum will be observed when an electron returns from 7th shell to 2nd shell?

An electron in a hydrogen -like atom is in an excited state. It has a total energy of -3.4 eV. Calculate the kinetic energy of the electron.

In a H like sample electrons make transition from 4th excited state to 1st state then

Statement I: The kinetic energy of an electron in the first excited state of a hydrogen atom is 6.8 eV. Statement II: Total energy of first excited state of hydrogen atom is -3.4 eV.

What is the ratio of kinetic energy of electrons rotating in the ground state to that in the first excited state of an atom ?

How many electrons of Ne-atom have clockwise spin?

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

What is the ratio of the frequency of electrons rotating in the ground state to that in the first excited state of an atom?