GENERAL GEOLOGY

Detailed explanation-1: -The half-life of a radioactive isotope is the amount of time it takes for one-half of the radioactive isotope to decay. The half-life of a specific radioactive isotope is constant; it is unaffected by conditions and is independent of the initial amount of that isotope.

Detailed explanation-2: -An isotope’s half-life is the time it takes for half of the atoms of the parent isotope to change into atoms of the daughter isotope. For example if an isotope’s half-life is 1000 years, it will take 1000 years for half the amount of that parent isotope to change into daughter isotopes.

Detailed explanation-3: -The half-lives of many radioactive isotopes have been determined and they have been found to range from extremely long half-lives of 10 billion years to extremely short half-lives of fractions of a second.

Detailed explanation-4: -Half‐life is the amount of time it takes for approximately half of the radioactive atoms in a sample to decay into a more stable form. Every radioactive element has a different half‐ life.