Here, I’ll keep a list of some of the more technical words that I can’t avoid using from time-to-time. So, in alphabetical order:

Boson: Particles which have an integer value of quantum spin. Many bosons can occupy the same quantum state.

Electron: The “particle” which carries negative charge. In atoms, they buzz around the nucleus, forming something like a cloud of charge. In molecules, they form the bonds that stick atoms together. In solids, they can come free from the atoms and conduct electricity.

Fermion: A particle like an electron or a proton which has half-integer quantum spin. Only one fermion can occupy each quantum state.

Micron (or micrometer): A length of one millionth of a meter.

Nanometer: A length of one billionth of a meter.

Neutron: The neutral particle in the nucleus of an atom.

Proton: The positively charged particle in the nucleus of an atom.