And after 2 half lives, we will have ¼ of the substa. So after one half life, we will have ½ or 50 of the substance remaining. This means that every 12 days, half of the original amount of the substance decays. Answer (1 of 7): Half life of any radioactive substance is the amount of time required for the quantity / weight of the substance to fall to half its initial value. Ī certain radioactive substance has a half-life of 12 days. So, 25 g of carbon-14 will remain after 30,000 years. You can find the half-life of a radioactive element using the formula: where t 1/2 is the half-life of the particle, t is the elapsed time, N 0 is the quantity in the beginning, and N t is the quantity at time t. How much of 800 g of this substance will remain after 30,000 years? 10 years and 1,000,000 views later, with thousands more still coming daily. The half-life of carbon-14 is approximately 6000 years. February 22nd, 2021 Thank you, to all the viewers and lovers of this audio. If an initial population of size P has a half-life of d years (or any other unit of time), then the formula to find the final number A in t years is given by The half-life of a substance is the amount of time it takes for half of the substance to decay.

Half life 2 radio