Webhalf-life, in radioactivity, the interval of time required for one-half of the atomic nuclei of a radioactive sample to decay (change spontaneously into other nuclear species by … Web12 Sep 2024 · The half-life (T1 / 2) of a radioactive substance is defined as the time for half of the original nuclei to decay (or the time at which half of the original nuclei remain). The half-lives of unstable isotopes are shown in the chart of nuclides. The number of radioactive nuclei remaining after an integer ( n) number of half-lives is therefore

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WebThe half-life of a radioactive substance is 30 minutes. The time (in minutes) taken between 40% decay and 85% decay of the same radioactive substance is A 60 B 15 C 30 D 45 … WebThe radioactive substance cesium-137 has a half-life of 30 years. The amount 4 in grams) of a sample of cesium-137 remaining after years is given by the following exponential function (1)-862 (4) Find the initial amount in the sample and the amount remaining after 50 … northland apartments appleton wi

Solved The half-life a particular radioactive substance is 6

Web21 Jun 2016 · Add a comment. 0. Going for the solutions of the differential equation: 0 = y ′ ( t) + 16 y ( t) = ( d / d t) ( y ( t) e 16 t) ⇒ c = y ( t) e 16 t ⇒ y ( t) = c e − 16 t. where c is some constant. For t = 0 we get y ( 0) = c, so. y ( t) = y ( 0) e − 16 t. WebThe half-life of radioactive carbon-14 is 5,730 years. If a sample of a tree (for example) contains 64 grams (g) of radioactive carbon after 5,730 years it will contain 32 g, after … WebA radioactive isotope will remain 15.625 grams after 30 years if its half-life is 6 years, and initial values are 500 grams. Similarly, the elapsed time t and the initial quantity N (0) of a … northland anniversary weekend