1 / 26 = 1 / 64.
It tells what fraction of a radioactive sample remains after a certain length of time.
After three half-lives, only 1/8 (or 12.5%) of the original radioactive sample remains. This is because each half-life reduces the amount of radioactive material by half, so after three half-lives, you would have (1/2) * (1/2) * (1/2) = 1/8 of the original sample remaining.
Half life has unit. That is unit of time. So it has to be mentioned. Let us assume that half life is 1 year. Okay. Now to know about the mass remaining we have to get the ratio (1/2)^1620. Hence remaining will be 1/(2^1620) * mass at the beginning
The half-life on 222Rn86 is 3.8235 days. A sample of this isotope will decay to 0.8533 of its original mass after 21 hours. AT = A0 2(-T/H) AT = (1) 2(-21/(24*3.8235)) AT = 0.8533
Atoms can last for varying amounts of time in the context of nuclear and radioactive decay processes. Some atoms can last for billions of years, while others may decay in a fraction of a second. The duration of an atom's existence depends on its specific properties and the type of decay it undergoes.
Please explain "sampke".
ung natira
1/4
It tells what fraction of a radioactive sample remains after a certain length of time.
If an isotope is absorbed into the body, the fraction that remains after one day depends on the radiological half-life of the isotope and the biological half-life (basically how fast the element can be eliminated from the body) of the element that the isotope represents.
1/24 = 1/16
343
let say for example you have 7 fifths. There are 5 fifths in a whole. You still have two fifths remaining and therefore the fraction becomes 1 and 2 fifths (1 2/5).
There will be 1/8 remaining.
1-the same numerator and denominator make it 1 whole without a fraction remaining
To calculate the fraction of tritium remaining after 50 years, you would use the formula: fraction remaining = e^(-kt), where k is the rate constant and t is the time. Plugging in the values, you would find that the fraction of tritium remaining after 50 years is approximately 0.606 or 60.6%.
That would be "half-life". That means, how long does it take for half of the atoms in a sample to decay (convert into some other type of atom). Depending on the specific isotope, this "half-life" can be anything from a tiny fraction of a second, to billions of years.