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27 August, 07:42

In the bohr model of the atom, the ground-state electron in hydrogen has an orbital speed of 2190 km/s. the mass of an electron is 9.11*10-31kg. what is its kinetic energy?

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  1. 27 August, 10:04
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    From the equation:

    K. E=1:2*9.11*10^-31kg*{2190) 2

    4.555*10^-31kg*4796100

    KE=2.184*10^-21g/m/sec2
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