HEL! Match the following.

1. helium nucleus emitted from the nucleus of a decaying isotope; represented by He2+
2. an electron or particle similar to an electron emitted from the nucleus with negligible mass and a charge of -1
3. high energy ray of energy emitted from some radioactive atoms that is not affected by a magnetic field
4. neutral particle found in the nucleus; mass about equal to that of a proton
5. the central core of the atom containing most of the mass and made up of protons and neutrons
6. one of the particles of the nucleus; positively charged; symbolized by p
7. energy available or given off in specific, predictable quantities
8. the distribution of light when passed through a prism

nucleus
gamma ray
quantum
alpha particle
neutron
beta particle
spectrum
protons