what is half life equation

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Guest May 1, 2014

+130511

+5

Best Answer

$N(t) = N_0 e^{-\lambda t} \,$

Where

N₀ is the initial quantity of the substance that will decay (this quantity may be measured in grams, moles, number of atoms, etc.),
N(t) is the quantity that still remains and has not yet decayed after a time t,
t_1/2 is the half-life of the decaying quantity,
λ is a positive number called the decay constant of the decaying quantity.

CPhill May 1, 2014

CPhill · Answer 1 · 2014-05-01T01:33:45

$N(t) = N_0 e^{-\lambda t} \,$

Where

N₀ is the initial quantity of the substance that will decay (this quantity may be measured in grams, moles, number of atoms, etc.),
N(t) is the quantity that still remains and has not yet decayed after a time t,
t_1/2 is the half-life of the decaying quantity,
λ is a positive number called the decay constant of the decaying quantity.