Chemistry - Atomic Structure Question with Solution | TestHub

Cathode rays are independent of nature of gas.

Charge should be integral multiple of $1.6\times 10^{-19}\mathrm{C}$.

Wavelength order : X-rays < Microwaves < Radio waves.

Since H is a single electron system, all orbitals of a particular shell are degenerate. Hence energy of 3s,3p and 3d are equal.