Answer: proton

AnswerCrossword Clue
PROTONNucleus of an atom.
protonthe part of an atom bearing a positive charge
PROTONIt's composed of three quarks
PROTONPositively-charged atomic particle
PROTONNeutron's cousin
PROTONSpinning particle
PROTONCharged particle
PROTONp+, in physics
PROTONHydrogen has one
PROTONA hydrogen atom has one
PROTONTiny particle
PROTONAn object of Bohr's research
PROTONPart of a nucleus
PROTONPositive particle
PROTONPart of an atom.
PROTONOpposite of electron.
PROTONSubatomic particle.
PROTONFermion family member
PROTONNucleus part
PROTONNucleus component
PROTONNuclear particle
PROTONNucleus occupant
PROTONOne of helium's two
PROTONAtomic particle
PROTONSubatomic particle
PROTONParticle composed of three quarks