Radioactivity

Alpha Particle

• 2 PROTONS AND 2 NEUTRONS EMITTED FROM THE NUCLEUS

Beta particle

• IS AN ELECTRON EMITTED FROM THE NUCLEUS DURING SOME KINDS OF RADIOACTIVE DECAY

Fission

• THE ACTION OF DIVIDING OR SPLITTING SOMETHING INTO TWO OR MORE PARTS.

Fusion

• THE PROCESS OR RESULT OF JOINING TWO OR MORE THINGS TOGETHER TO FORM A SINGLE ENTITY.

Gamma

• ARE HIGH-ENERGY ELECTROMAGNETIC WAVES EMITTED FROM A NUCLEUS AS IT CHANGES FROM AN EXITED STATE TO A GROUND ENERGY STATE.

half-life

• IS THE TIME REQUIRED FOR HALF THE ATOMS OF A RADIOACTIVE NUCLIDE TO DECAY.

Positron

• s a particle that has the same mass as an electron,but has a positive charge, and is emitted from the nucleus during some kinds of radioactive decay.

Radioactivity

• THE EMISSION OF IONIZING RADIATION OR PARTICLES CAUSED BY THE SPONTANEOUS DISINTEGRATION OF ATOMIC NUCLEI.