Cesar Cortez,per 6, Chemistry Cp

(B) is an electron emitted from the nucleus during some kinds of radioactive decay

A very heavy nucleus splits into more stable nuclei of intermediate mass

in nuclear fusion,low-mass nuclei combine to form a heavier, more stable nucleus.

(y) are high-energy electromagnetic waves emitted from a nucleus as it changes from an excited state to a ground energy 

half-life,t 1/2, is the time required for half the atoms of a radioactive nuclide to decay

The spontaneous decay of the nucleus ,often called natural transmutation