This is precisely the difference between the new, smaller, dimension of the proton, the nucleus of the hydrogen atom, and the value ... as Planck's constant or the mass of the electron can only ...

As soon as the muonic hydrogen was likely to be present, the lasers fired, allowing spectroscopic measurements of this atom. Because of the muon's (relatively) large mass, these measurements ...

In the second scenario, a hydrogen atom floating in space collided with another hydrogen atom that was attached to the fullerene. The researchers found that the two hydrogen atoms would bond ...

Scientists have captured the first ever photo of an electron’s whizzing orbit within a hydrogen atom, thanks to a unique new microscopy technique. Seeing inside the tiniest bits of matter is a ...