1. The problem statement, all variables and given/known data A meteor contains 2.45kg of plutonium-239. It has a half-life of 24065 years. Calculate: a) The number of plutonium molecules currently present in the meteor (at. mass = 239.052) b) How long ago the meteor struck the earth if originally it contained 10kg of plutonium. 2. Relevant equations no.atoms= mass/(atomic mass) x avagadro^' s no.(6.02x〖10〗^23) N = No e-γt where the decay constant, γ(gamma), and T1/2 are related by γT1/2 = ln(2) 3. The attempt at a solution I solved A, and achieved an answer of 6.16979x1024 particles. I'm confused as to where to go from here.