Match the atomic particles with their characteristics.

1. made of two protons and two neutrons
2. similar to an electron; positive charge
3. orbits nucleus; negative charge
4. bundle of energy; zero charge
5. found in nucleus; positive charge
6. very unstable; +, -, or zero charge
7. found in nucleus; zero charge
8. negative particle; negative charge
9. atomic energy converted to mass

Words to match to:
alpha
electron
positron
neutrino
proton
beta
gamma
neutron
meson