half life period

The time required for the decay of the radioactive element to one half of its original amount is called Half-Life Period..

The time required for the decay of the radioactive element to one half of its original amount is called Half-Life Period . It is denoted by t 1 / 2 . Putting these values in equation (iii), we get ..

Half-life is the time period during which half the number of atoms present initially in the sample of radioactive element decays. When t = T ; N = N o /2 The radioactive decay of radium is 1,620 years. The time required to reduce a given quantity of that ele..

Half Life of a Reaction - Half life of a reaction is defined as the time required for reducing the concentration of a reactant to half its initial value. It is denoted as t 1 / 2 . As discussed before, the t 1 / 2 of a zero order reaction is given a..

The Life of a Star - The life cycle of a star begins with the accretion of hydrogen and helium gas at -173 o C into smaller dense clouds, which contract under their own gravity. This dense cloud of gas contracting under its own gravity is called a Protostar . A cloud of gas from..

Life is a manifestation of specific characters. It is these characters, exhibited by living organisms that may be considered as the closest to 'being alive'. - Living organisms have a definite organisation consisting of structural and functional units called cells that make the physical b..

It is a derived parameter to indicate how many people would be added to population. It also indicates the level of health care available to children and their mothers. Usually life expectancy at birth is higher than at later period..

. These developments indicate a gradual change in the life style of mankind. Today metals are so vital to the modern man that it is unthinkable to live without them. They are essential for the construction of houses, transportation, communication, electricity, household articles, scientif..

An isotope of Uranium has a half life of 1000 years. What is the percentage of original sample left after 5 years? => 99.121 or 99.500 or 99.875 or 99.654 or 99.424..

A C - 14 isotope decays from 120 gms to 80 gms in 25 days. What is the half - life of the isotope? => 49 days or 47 days or 51 days or 45 days or 43 days..