Electron
From Tardis Wiki, the free Doctor Who reference
An electron was a particle. It was one of the components of an atom, along with protons and neutrons. (PROSE: The Infinity Doctors)
Neutrinos would register on a neutrino detector when one interacted with an electron in the fluid inside the detector. (PROSE: The Wheel of Ice)
Photons could be produced by the recombination of an electron and a positron. (TV: Time and the Rani)
An electron and a positron could also be combined to create orthopositronium. (AUDIO: The Time of the Daleks)
A wave interrupter could disable an entire star system by stopping any and all waves, right down to the flow of electrons through a wire. (PROSE: The Book of the Still)
