18 grams are one fourth of the original sample mass of 72 grams. Accordingly, the half life is 6.2/4 = 1.55 days.
3.1 days
The rate of decay (activity) of a radioactive isotope is proportional to the number of atoms of the isotope present.
Caebon-14 is a radioactive isotope and can decay.
This is because only one isotope decay.
friends are like seashells you collect on the way
The lightest "element" that can undergo radioactive decay is the isotope hydrogen-3, which undergoes beta decay. The lightest element with no radioactively stable isotopes is technetium, and its isotopes have different modes of decay.
The half life of an isotope refers to the rate at which a radioactive isotope undergoes radioactive decay. Specifically, it is the amount of time it takes for half of a given sample of a radioactive isotope to decay.
its called Half-Time...
when an isotope is it does not undergo radioactive decay
No. Only radioactive elements have half-lives, the half-life is the time that it will take for half of the atoms in a sample of a radioactive isotope to decay into another element or isotope. This is a constant property of the isotope and does not depend on the sample size. Stable isotopes never decay.
It tells what fraction of a radioactive sample remains after a certain length of time.
The rate of decay (activity) of a radioactive isotope is proportional to the number of atoms of the isotope present.
The rate of decay (activity) of a radioactive isotope is proportional to the number of atoms of the isotope present.
the half-life
The length of time depends on the element and isotope, but the point at which half of the sample has decayed is known as the half-life.
The half-life of an isotope is the time it takes for half of the atoms of a sample to decay.
radioactive isotope
About 33 hours