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Subatomic Particles

Terms in this set (15)

Subatomic Particle
any of the many particles in the universe that are smaller than an atom
Cosmic Rays
highly energetic charged particles coming from cosmic sources, mostly protons
Cloud Chamber
radiation detector that uses water or ethanol vapor to detect the paths of charged particles.
Antimatter
matter made up of particles with the same mass as regular particles, but opposite charges and other characteristics
Positron
the antiparticle of the electron
Cosmic Shower
a shower of subatomic particles caused by cosmic ray particles colliding with atoms high in the earth's atmosphere
Standard Model
theory of all elementary particles and fundamental interactions in the universe
Quarks
subatomic particles theorized to be among the basic units of matter: they make up hadrons including protons and neutrons
Leptons
a class of six particles that include light particles such as muons, electrons, and neutrinos (not made of quarks)
Mesons
any particle made up of two quarks
Baryon
any particle made up of three quarks, includes the proton and the neutron
Higgs Boson
recently discovered subatomic particle that gives matter mass
Gauge Boson
particles that carry the fundamental forces of nature
neutrino
an elementary particle that has little rest mass and no charge but carries energy from a nuclear reaction.
LHC
Large Hadron Collider
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