Discover radioactive decay and the half-life equation. Learn how to use a half-life graph to write the equation for an atom's half-life and...
Radioactive Decay Lessons Half-life & Radioactive Decay | Equation, Calculations & Graphs Lesson Transcript Instructors Rashid Nuzha View bio Nissa Garcia View bio Learn the radioactive decay definition. Know the radioactive decay formula. Explore the differences between alpha decay, beta decay, and...
The equation for radioactive decay is , where p is the part of a substance with half-life H remaining radioactive after a period of time, t. A given substance has a half-life of 6,000 years. After t years, one−fifth of the original sample remains radioactive. Find t, to the ...
The decay equation can be used to provide a useful expression for radionuclide decay, the half-life, the time when 50% of the radioatoms present will have decayed. Radiotracer half-life has direct implications in nuclear imaging...
Successive half-lives decrease the number of undecayed nuclei by half each time.Mathematically, the half-life can be calculated by seting Nt=N0/2 in the radioactive decay equation. Therefore, N0/2=N exp(-&lambdat1/2). Taking logs and re-arranging for t1/2 leads to t1/2 = ln(2)/...
wheret1/2is the half-life of the particle,tis the elapsed time,N0is the quantity in the beginning, andNtis the quantity at timet. This equation is used in the calculator when solving for half-life time. Exponential decay applications ...
Learn more about this topic: Half-life & Radioactive Decay | Equation, Calculations & Graphs from Chapter 4 / Lesson 3 165K Discover radioactive decay and the half-life equation. Learn how to use a half-life graph to write the equatio...
I learned that radio-decay is exponential; say if A decays to B with constant y1 and B decays to C with constant y2 and C is stable, N1 is nuclei in A while N2 is nuclei in B. N1 = N0e-y1(t) Homework Equations Then, I tried writing the decay equation for B, and hit...
−dNdt=λN Where λ= decay constant, N= number of nuclei at time t, N0 =intial no. of nuclei. The above equation after integration can be represented as λ=2.303tlog(N0N) Half-life period of U2.5×105 years. In how much thime will the amount of U237 remaining be only 25% ...
How do I solve a radioactive decay equation? To solve a radioactive decay equation, you need to know the initial amount of the radioactive material, the half-life of the material, and the amount of time that has passed. You then use the equation A = A0*(1/2)t/h, where A is the...