Enter a clue or pattern or both:
The Clue
Atomic particles (7 letter answer)
The Answer
LEPTONS
Tags
Notes
The answer LEPTONS is so rare that it appears less than once every 2500 puzzles.
Definition
LEPTON as a noun:
1. 100 lepta equal 1 drachma in Greece
2. an elementary particle that participates in weak interactions; has a baryon number of 0