The general form is y(t) = a + y(0)*exp(-bt)where y(t) is value of the variable at time t.
the starting value is a + y(0) and the asymptotic value (as t -> infinity) is a.
AA
y=a(1-r) to the t power
There certainly is a formula for beta decay. You just need to know the parent nuclide and the beta mode, beta- or beta+. See the related question below which answers this quite well.
The power formula for radioactivity is given by P = λ*N, where P is the power, λ is the decay constant, and N is the number of radioactive atoms. This formula represents the rate at which energy is released by radioactive decay.
ernest Rutherford _______________________________________________________________ Radioactive decay was actually discovered in 1896 by Henri Bacquerel. Ernest Rutherford discovered the formula of radioactive decay (Such as the falk-life, differences between alpha and beta decay and even how the elements become new elements after the decay), but he did not discover the radioactive decay himself.
exponential decay formula is y=A x Bx
dA/dt= -KA and A=A0e^-Kt
The radiometric dating formula used to determine the age of rocks and fossils is based on the decay of radioactive isotopes. One common formula is the equation for radioactive decay: N N0 e(-t), where N is the amount of radioactive isotope remaining, N0 is the initial amount of the isotope, is the decay constant, and t is the time elapsed.
87Fr223 ----> 2He4 + 85At219
To calculate the time it takes for 31.0 g of Am-241 to decay, you can use the radioactive decay formula. First, find the decay constant (λ) by ln(2) / half-life. Once you have the decay constant, you can use the formula N(t) = N0 * e^(-λt), where N(t) is the remaining amount of the isotope, N0 is the initial amount, and t is the time. Solve for t to find how long it will take for 31.0 g of Am-241 to decay.
An alpha decay equation consists of the nucleus of an atom splitting into two parts: an alpha particle (He atom) and the resulting atom. To balance this equation, make sure that the amount of protons and neutrons are even on both sides.
Alexandra Heath has written: 'Measurement of the [nuclear formula] beta decay branching ratio'