electrionn.

1902 Ld. Kelvin in London, Edinb., & Dublin Philos. Mag. 6th Ser. 3 259 The neutralizing quantum of electrions for any atom or group of atoms has exactly the same quantity of electricity of one kind as the atom or group of atoms has of electricity of the opposite kind.

1907 Times 2 Aug. 9/2 We were not bound to assume that a single electrion was the saturating quantum of any particular ponderable atom. Nor were we bound to suppose that it was electrically neutralized by any integral number of electrions.

1953 Brit. Jrnl. Philos. Sci. 4 211 At the end of the published form of the lectures in 1904, this dynamical model is replaced by the hypothesis of electrical attraction of an atom on its ‘electrion’ (charged particle) when the latter is displaced from the centre of the atom.

2001 M. Nagasaki in tr. M. Taketani Formation & Logic Quantum Mech. I. ii. 123 When the number of electrions exceeds four, one must think of the tendency to be crowded out of one spherical surface.