Consider the following statements
(I) Bohr's theory can also be used to explain the spectra of `He^(+)` ion
(II) Energy of an electron in the first Bohr orbit of hydrogen atom is `-13.6eV`
(III) Bohr's theory is only applicable to hydrogen atom and not to any other species
(IV) The energy of an electron in a hydrogen atom is quantised
The correct statements are

Options

A. I,II,IV
B. II,III
C. II,IV
D. All

Answer

A

Explanation

Bohr theory is applicable to one `e^(-)` atom/ions only