Nuclear Physics

I want you to study the half-life cycles between two measures of decay, how do you do it? 2π*x*y; (1/2*a) - (1/2*b); differential Calculus of kinetics (dk) / M; I ASKED YOU TO STUDY THE HALF-LIFE OF ELEMENTS AND YOU JUST WANT TO PICK THEM UP TO SEE HOW THEY LOSE THEIR LIVES AND RADIATE OURS?!! AS A NUCLEAR PHYCISTS' PRINCIPLE: NUCLEAR ELEMENTS MAY ONLY BE CONTAINED, NOT DISTURBED