The Neutrino Is

Multiple Choice

The neutrino is

A) a tiny particle that interacts very weakly with matter, with extremely low mass and no charge.
B) another name for the neutron, a component of almost all atomic nuclei, with a mass close to that of the proton and having no charge.
C) another name for a photon of very high-energy (i.e., short-wavelength) electromagnetic radiation with great penetrating power.
D) a massive but very elusive nuclear particle that carries most of the energy generated in the core of the Sun to the surface, but then decays to release electromagnetic radiation (i.e., light) .