Question

The radius of 1st orbit of H-atom is ______​

Answer 1

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The radius of 1st orbit of H-atom is ______

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0.529 A˚

The radius of first Bohr orbit of hydrogen atom is 0.529 A˚.

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➪What is the radius of second orbit of hydrogen atom?

☞︎︎︎ Planck's const. h=6. 6262×10−34Js; mass of electron =9.