Particle Missing Electrical Charge; Prodigy Jimmy
Puzzle 18 of Animation Pack
Question is: Particle Missing Electrical Charge; Prodigy Jimmy
and the answer is: NEUTRON
Word Meaning:
NEUTRON — (particle physics) A subatomic particle forming part of the nucleus of an atom and having no charge; it is a combination of an up quark and two down quarks.
Definitions from Wiktionary.