Question

Who discovered quantum mechanics? Explain it?

Answer 1

Neil's bhor 1913 quantum model of an atom which incorporated nd explanation Johannes Rydberg 1888 formula. max plank 1900 quantum hypothesis that atomic energy radiator discretet energy value Albert Einstein quantum's populate provided

Answer 2

HEYA USER...

As this is not a short and sweet topic ;)  so nothing like that this theory is fully proposed by a single scientist , as we are only concern with surface intro of this topic so mainly the scientist involved in this theory are highlighted below:-

-Max Planck
-Albert Einstein
-Louis de Broglie
-Niels Bohr
-Werner Heisenberg
-Erwin Schrodinger
-Max Born
-Paul Dirac
and so on....

Now take a look on what these scientist  had done or what they contributed in quantum meachanics---

1) PLANCK AND QUANTIZATION
 Planck interpret some experimental results related to black bodyradiation. This phenomenon involves the interaction between heat and light, and ya it attracted a great deal of attention in the latter part of the nineteenth century.
According to him , in his experiment  electric energy is first converted to heat, which in turn is partially converted to light.
 Mathemetical exp. given by Plank

                                                  ν = λ / T


2) BOHR AND THE HYDROGEN ATOM

Atoms are too small to be studied directly, and until 1900 much of the knowledge of atomic structure had been obtained indirectly. Spectroscopic measurements made significant contributions in this respect u can say.

An emission spectrum may be observed by sending an electric discharge through a gas in a glass container. This usually leads to dissociation of the gas molecules
Mathemetical exp. given by Bohr

                                      λ = Am² / (m²-4)

later, Johannes Robert Rydberg proposed a more general formula 

                                        v = R[(1/n²) - (1/m²)]          n,m = 1,2,3,....  (m>n)


3) MATRIX MECHANICS

Discovery  of Matrix Mechanics attributed to Heisenberg.The second model is based on a differential equation proposed by Schrodinger that is known as the Schrodinger equation. It was subsequently shown that the two different mathematical models are equivalent because they may be transformed into one another.
Mathematical relation  came out from this result

                                            ħ = h/2π

4) THE UNCERTAINTY RELATIONS

Introduced first in 1927, by the German physicist Werner Heisenberg, it states that the more precisely the position of some particle is determined, the less precisely its momentum can be known, and vice versa.
The formal inequality relating the standard deviation of position σx and the standard deviation of momentum σp was derived by Earle Hesse Kennard.

ħ is the reduced Planck constant, h / (2π) as seen ↑↑(matrix...)


Mathemetical exp came out from this result

                                            σx . σp ≥  ħ/2

Now many of the topics are still remained to pen like like Wave Mechnics , Coclusions to quantum mechnics , etc. They might be of no use but u still eager to plz comment over here  additional help will be provided , and if in case any doubt or derivations of above results , then do comment.

THANK YOU

HOPE IT HELPS...!