radioactive decay series half life

The products of the disintegration of radium atoms. Half-life Radioactive decay is a random process and different radioactive substances decay at different rates. The time taken for the number of particles emitted per unit time to drop to halfh..

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 reduc..

The emission of a or b - particles from a radioactive element results in the function of new element called daughter element. If the daughter element still has unstable nucleus, it further disintegrates by emitting a or b - particle and produces a new daughter element. This process of suc..

A radioactive substance decays at a rate proportional to the amount present. What is the half - life of the substance, if 20% of such a substance decays in 10 years. => 24 years or 37 years or 42 years or 41 years or 31 years..

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 g..

All radioactive decays follow first order kinetics. Therefore, the half-life of a radioactive element is independent of the amount of sample. With the help of half-life values of a suitable radioisotope of an element, which is present in a roc..

All radioactive decays follow first order kinetics. Therefore, the half-life of a radioactive element is independent of the amount of sample. With the help of half-life values of a suitable radioisotope of an element, which is present in a rock, or ..

The number of atoms disintegrated per second at any instant is directly proportional to the number of radioactive atoms actually present in the sample at that instant. If N o be the total number of atoms at t = 0, N be the total number of atoms left in the sample at time t then dN/dt will..

The rate of decay of carbon-14 which has a half-life period of 5,750 years is => 410.71 or 0.0012 or 0.00012 or 0.5234..

Suppose kryptonite 123 (Kr 123 ) has a half-life of 645 years. How long will it take for 100 grams of kryptonite to decay to 33 grams? => 430 years or 1031 years or 645 years or 425 years..