What happens when fast moving electrons hit hydrogen molecules? Just like the creation of X-rays. Where fast moving electrons are bombarded on some heavy element. What happens if the we keep compressed hydrogen instead of the heavy metals?
Surely it will form minimal X-rays. But hydrogen has one proton and one electron.
So my question is,
If an electron hits the nucleus will it throw the proton out of nucleus and take its place?
Talking about very fast moving electrons hitting a proton.
 A: Electron bombardment of neutral atoms produces X-rays by ionizing the atoms, not by removing the outermost "valence" electrons like you do when you rub a balloon on your hair, but by removing the innermost electrons.  The ionized atoms neutralize by picking up charge from the environment into their valence shells.  However the hole is the inner shell is filled by electrons "falling" from the next innermost shell, and so on.
Bombarding hydrogen atoms with electrons with more than 13 eV kinetic energy completely ionizes the atoms.  The most energetic photons that can be emitted by a hydrogen atom are in transitions to the innermost $n=1$ orbital, which emit the Lyman series of ultraviolet photons.
A: If the electron hit the proton they would annihilate each other. If the electron hit the orbiting electron it would knockout the electron and an another high electron dumps it energy as a photon and jumps in the orbit. Plus it is very hard to knockout the electron of the hydrogen atom because for one it's a gas and the size is small so the chances of the electron hit either the proton or electRon is like one in a million.
