Half life

What is Half life?

The numerous processes of synthesis and anti-synthesis build the paradigm for our universe. This blueprint of natural phenomenons also has attributes of living organisms like pairing, binary relationships, growing, and finally decaying. Due to this very reason, the ancient naturalist also called biological substances an artefact or human-like living organisms.

In Chemistry, in fact, more precisely, Nuclear Chemistry have the radioactive elements that tend to decay, and after the process, they left with half the amount of their actual composition. The amount of time these radioactive elements would take in order to disintegrate called half life. 


Half life is a process that is highly uncertain and cannot predict for each situation. If you have given two identical atoms, then there is a possibility that one of them would decay immediately. On the other hand, it remains intact for an extended period of time. As far as the representation of half life is concerneing, in practice, it will denote by the 11th alphabet of Greek letters (λ ). Universally, in terms of half life, the lambda (λ ) is known as a radioactive decay constant. 

This radioactive decay deals with the destruction or bifurcation of the atom’s nucleus. In the process of radiation, the unstable atomic nucleus emits energy in the form of photons. This radiation can be of three types, i.e., alpha decay, beta decay, and gamma decay. A ((( Chemical equation product calculator ))) can be used in order to balance equations in a legitimate manner.

After a certain time t, the number of unstable nuclei left after decay can calculated through the formula, 

      N(t) = N0 * 0.5(t/T)

In which N0 is the initial quantity or number of atoms you start with, and N(t) is the number of remaining atoms for a nuclide with the half life T. 

Another formula also exists for estimating the remaining value of a substance, which involves logarithmic functions. 

       N(t) = N(0) * e(-λt)

The exponential decay constant, i.e., lambda in the above formula can calculated by this formula, 

      λ= ln2/T

Where we can Use it? 

A knowledge of half lifes cycle is important because it allows the health professional to determine how long they can store a radioactive waste and isotopes before its disintegration.

These radioactive isotopes used to trace chemical or biological processes using devices that detect radiation. The other isotope of carbon-12, i.e., carbon-14, has proved as quite helpful for nuclear scientists in calculating the most probable half life of substances made of it.

The process is reffering as Carbon dating in which archeologists and geologists use half life methods to date the primitive organic objects. As carbon-14, after passing through the phase of alpha decay, converts into nitrogen-14, and at the time of complete demolition, the organic objects stop producing further carbon-14, which indicates their termination or end point.

Benefits a Chemist can get from Half Life Calculators

As discussed above, having a proficient understanding of half-lives is necessary for chemists, and after using half lifes calculators. They will be having enough insights into a radioactive isotope that, whether after a certain time period, will it be safe to handle or not. This made the ((( half life calculator ))) a necessary tool in the lab accessories.

Different substances have different amounts of half-life; it is nearly impossible to gauge or estimate a half-life of a substance by manually comparing it with any other.

For instance, the isotope of carbon, i.e, C-10, is unlikely to put into consideration because it has a half-lifes of merely 19 seconds, which makes it impossible for other natural chemical elements to interact with it and produce resultant organic objects.

Contrary to carbon-10, uranium-233 has an approximate half of the life of carbon 160,000 years. Making it one of the most vulnerable substances for high energy fission reactions.

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