Which of the following statements about the electron is INCORRECT?

The isotopes of an element differ in

The difference between $U^{235}U^\{235\}$ and $U^{238}U^\{238\}$ atoms is that $U^{238}U^\{238\}$ contains …………

In vacuum, the speed of all types of electromagnetic radiation is equal to ………

In the electromagnetic spectrum, the ultraviolet region is around ………….. Hz.

The number of electrons, protons and neutrons in ${}^{31}{P}^{3-}^\{31\}P^\{3-\}$ ion is respectively ………

In hydrogen spectrum, the series of lines appearing in ultraviolet region of electromagnetic spectrum are called ………

The energy of electron in the $n^{th}n^\{th\}$ Bohr orbit of H-atom is ………

Which of the following is a hydrogen-like species?

The de Broglie wavelength associated with a particle of mass ${10}^{-6}10^\{-6\}$ kg moving with a velocity of 10 $m{s}^{-1}m\; s^\{-1\}$ is ………