For H atom the Bohr radius first orbit is 0.529 Å and the radius of maximum probability for H-atom according to wave mechanical model is also0.529 Å. How do the two approaches differ?

For H atom the Bohr radius first orbit is 0.529 Å and the radius of m

1.	For H atom the Bohr radius first orbit is 0.529 Å and the radius of maximum probability for H-atom according to wave mechanical model is also0.529 Å. How do the two approaches differ?
Answer» Solution :Bohr predicted that the electron will always be found moving around the nucleus in a circular path of radius `0.529 Å`. According to his model, electron cannot be found at distance less than or more than `0.529 Å` . However according to wave MECHANICAL model. electron is most likely to be found at this distance but there is definite probability of finding the electron at DISTANCES both shorter and larger than `0.529 Å`. In other WORDS, according to wave mechanical model, the electron KEEPS on moving towards or away from the nucleus and the maximum probablity of locating it is at a radius of `0.529 Å` from the nucleus. Fig (a) Shows the electron cloud picture of 1s-orbital having RADIS of maximum probability and Fig (b). gives the Bohr picture of orbit in which electron is found only at this distance.