Melissa Woc, Chemistry Cp, Period 5

two protons and two electrons bound together.

electron emitted from the nucleus

SPLITTING a heavy NUCLEUS into lighter nuclei  

combining of nuclei to form a bigger and heavier nucleus

Electromagnetic waves emitted from a nucleus

time required for half the atoms of a radioactive nuclide. 

antiparticle of the antimatter counterpart of the electron

emission of ionizing radiation or particle caused by the espontaneus