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Grade 12th passIIT JEE Entrance Exam

The velocity of electron in ground state of
hydrogen atom is

Profile image of Atul
11 Years agoGrade 12th pass
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1 Answer

Profile image of Suraj Prasad
11 Years ago
The speed of an electron in the ground state is given by

v = Zc/α where Z is the atomic number, c is the speed of light, and α is the fine structure constant (α ≈ 1/137)

So for an electron in the ground state of hydrogen, its orbital velocity is approximately c/137.