| POSITRON | E antiparticle of an electron (8) |
| ANTIPROTON | Negatively charged antiparticle of a proton (10) |
| POSITRONS | In physics, the antiparticles of electrons, having the same mass but an equal and opposite charge (9) |
| SHELL | Principal energy level of an electron in an atom, often visualised as an orbit (5) |
| NEGATIVE | An electron has this type of electronic charge |
| NEGATRON | An electron with a negative charge (8) |
| INDICATE | Show charge orbiting an electron (8) |
| CATHODE | E negative electrode of an electron tube (7) |
| ANODE | E positive electrode of an electron tube (5) |
| NEUTRINO | Roughly meaning "tiny, zero charge", a particle some six million times lighter than an electron, thus so small that no one has been able to measure its mass (8) |
| ORBIT | Path of an electron around an atomic nucleus, or a planet around a star (5) |
| TAU | -- particle, lepton of mass 3600 times greater than that of an electron (3) |
| SPIN | Short trip or jaunt in a car; or, the intrinsic angular momentum of an electron or an atomic nucleus (4) |
| MUON | Lepton with mass 207 times that of an electron (4) |
| DELTARAY | In physics, a particle, often an electron, ejected from matter by ionizing radiation |
| PROTON | A stable particle with positive charge equal to the negative charge of an electron (6) |
| RROTONS | Stable particle with positive charge equal to the negative charge of an electron. (7) |
| PION | Particle with a mass about 270 times that of an electron |
| ETA | ___ meson (particle that is its own antiparticle) |
| PATERNALISTIC | Protective of new antiparticles (13) |
