Before quantum mechanics, scientists though that electrons orbited the nucleus l

Question

Before quantum mechanics, scientists though that electrons orbited the nucleus like the Earth orbits the sun. We can use this simple model for the hydrogen atom. Some measurements may lead you to believe that the electron moves in a circular orbit of radius 0.053 nm around a stationary proton (the hydrogen nucleus).

(a) How many revolutions (complete orbits) does the electron complete in one second?

(b) Would this value be greater, less, or the same if this was a deuterium atom? This has a proton and neutron in the nucleus, being orbited by one electron. Explain your reasoning.

Explanation / Answer

using force equation

mv^2/r=K*e^2/r^2

v^2=Ke^2/mr

v=2.185*10^6 m/s

time period=2*pi*r/v

no of revolution=v/2*pi*r=6.56*10^15

(b) if it deuterium ,charge would be same so everything would be same so it will be same

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