Godfrey Classic Prince
Last Activity: 13 Years ago
Dear Ramendra Ck,
Heisenberg's Uncertainity principle says that it is impossible to measure simultaneously both the postion & velocity(or momentum) of a sub-microscopic particle with absolute accuracy or certainity .
But any one of the two , that is either position or velocity of a sub-microscopic particle(electron) can be predicted accurately at a given time !
Thus Bohr derived the formula for the velocity of an Electron in an nth orbital to be
By Bohr's equation: L = nh /(2 pi)
Plugging into the general formula:
nh/(2 pi) = mvr
v = nh / ( 2pi)(mr)
Substituting the values the velocity of the electron in the nth orbital is given to be
v = 2.19*106 Z/n
Z- Atomic Number
n- Orbital Number
Hope thsi helped you immensely ..!!
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