1.

An electron is revolving around a nucleus of hydrogen atom in the first orbit. The radius of this orbit is 0.53 A. Choose the correct option(s)

Answer»

The RADIUS of the first orbit of hydrogen-like atom `He^(+)` is `1.06 Å`
The radius of the first orbit of hydrogen-like atom `He^(+)` is` 0.265 Å`
The ENERGY of the electron of hydrogen-like atom `He^(+)` in the first orbit is `-13 EV`
The energy of the electron of hydrogen-like atom `He^(+)` in the first orbit is `-54.4` eV

Answer :B::D


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