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1900's Physics and Wave

In the Bohr's...

Question

In the Bohr's model, for unielectronic species following symbols are used.
$K_{n, z} \to$ Kinetic energy electron in $n^{t h}$ orbit with atomic number "z".
Calculate z in all cases.

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Solution

Kinetic energy of $n^{t h}$ orbit
$K . E = \frac{m v^{2}}{2} = \frac{m z^{2} e^{4}}{8 E_{o}^{2} h^{2} n^{2}}$

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