Jocelyn Canseco , Chemisty CP ,Per:5

2 protons and 2 neutrons emitted from the nucleus

charged electrons emitted during certain radioactive

action of dividing something into 2 or more parts

process of joining 2 or more things together to form single entity 

rays of the smallest wavelength and most energy of any wave

time required for half of a sample of a radioactive substance

Particle has same mass & spin as electron but has a + charge

emitting or relating to the emission of ionizing radiation