Calculate velocity of electron in first Bohr orbit of hydrogen atom (Given,r=a)

Answer:

Given parameters

n = 1

h = 6.626×10−34 Js

m = 9.1×10−31kg

The velocity of an electron in the first Bohr orbit of H- atom

mvr = nh/2π

v = nh/2πmr

∴ v = (1 × 6.626×10−34)/ (2 × 3.14 × 9.1 × 0−31 × 0.529 × 10−10)

v = 2.19×106ms−1

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