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angular momentum for p-electron

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According to Bohr's model -

1. Force of attraction between the nucleus and an electron is equal to centripetal force.

2. mvr=\frac{nh}{2\pi }

    n = principal quantum number.

3. Energy can be absorbed or emitted when electron transfers between the orbits  E_{1}-E{_{2}}=h\nu
 The orbital angular momentum is given by \sqrt{l(l+1)}\frac{h}{2\pi } where l is the azimuthal quantum number for p orbital, l=1

\therefore orbital angular momentum = \sqrt{(1)(1+1)} \frac{h}{2\pi }

                                  = \sqrt{2} \frac{h}{2\pi } = \frac{h}{\sqrt{2}\pi }

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