Chemistry, asked by Atul99, 1 year ago

explain Bohr's theory and explanation of hydrogen spectrum?

Answers

Answered by Dia095
5
It is due mainly to the allowed orbits of the electrons and the "jumps" of the electron between them:

Explanation:
Bohr tells us that the electrons in the Hydrogen atom can only occupy discrete orbits around the nucleus (not at any distance from it but at certain specific, quantized, positions or radial distances each one corresponding to an energetic state of your H atom) where they do not radiate energy.

When the electron moves from one allowed orbit to another it emits or absorbs photons of energy matching exactly the separation between the energies of the given orbits (emission/absorption spectrum).
We see these photons as lines of coloured light (the Balmer Series, for example) in emission or dark lines in absorption.

Diagram us given as an attachment... Hope this will be helpful to you...Plz mark it as BRAINLIEST...
Attachments:

utkarsh46: ur answer is ti nice
utkarsh46: indox me
Dia095: Hii...I think u blocked me...I can't able to inbox u...
Dia095: First I hv to unblock me so that I can msg u...
Answered by utkarsh46
5
hello friend


Bohr's theory and explanation of
hydrogen spectrum

Although hydrogen atom has only one electron yet it's spectrum consists of large number of line .Bohr supply following explanation for this interesting problem .

In the ground state the solitary electron of hydrogen atom keep on rotating in the first energy level. But when energy is supplied to it, it is excited and its electron jump to a higher energy in level by absorbing of photon of energy. Further since a given sample of hydrogen contains a very large number of atom and hence electrons, different atoms absorb different amount of energy . Hence the solitary electron in different atoms will shift to different energy level depending upon the energy absorbed by the atom for example some of the hydrogen atom may absorb energy to jump directly form energy level 1, 2, 3 while still other may jump to high energy level 4 ,5 ,6 etc. by absorbing suitable energy .

The electrons then tend to fall back ,almost immediately to one or other of lower energy level in one or more jumps .For examples some of electrons in Energy Level 4, may return directly to ground state other may first drop to energy level 3 and then to 1, while some of others first drop to energy level 2 and then to 1. This also happens to electrons excited to other energy level 2 3 4 5 6 7 and 8 Thus in general different excited electrons adopt different routes to return to the ground state .During each jump from higher to a lower level ,different amount of energy is released which appear in the form of photon of light of specific frequency and thus gives a different line in a spectrum .Hence although hydrogen atom has only one electron ,a number of line (each corresponding to the energy of photon released) appear in its atomic spectrum .

Thanks dear
Similar questions