how many radioactive decay series exist in nature

Radioactive Decay Series - 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..

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 ..

In 1896, the phenomenon of radioactivity was accidentally discovered by French scientist Henri Becquerel. He was performing experiments with uranium compounds. He accidentally placed a crystal of potassium uranyl sulphate over photographic plate wrapped with usual black paper. On develo..

. When the plant or animal dies fresh carbon is no longer taken in and the C - 14, which is present, decays. Thus, the length of time a specimen has been dead may be determined by the activity of the C - 14, which remains in it. Carbon - dating has therefore become an important tool for a..

Half-life period of a nuclide The time taken to reduce the number of nuclei to one half the origina..

D m = {zm p + {A-Z}m n - m N } Total B.E = ( D m) C 2 = [zm p + ((A-Z)m n ) - m N ]c 2 Average B.E per nucleon Natural radioactivity is the phenomenon of emission of active radiations by heavy nuclei, on their own, without any external provocation. The..

Radioactive elements can undergo a number of different reactions in the process of forming a stable element. Nuclear fission is one such reaction. Fission means to divide. Elements having atomic numbers greater than 90 can undergo fission. Uranium is one such element. In nuclear fission,..

Summary - When certain metals are heated to a high temperature, they emit thermions (electrons) and the phenomenon is called thermionic emission Cathode rays are a stream of negatively charged particles emitted from the cathode of an evacuated bulb, when a voltage of nearly 3000 volts given across ..

Nuclear Energy - Nuclear energy is the energy released when certain changes take place in the nucleus of an atom. Nuclear energy is partly renewable and partly non-renewable source of energy. Nuclear fission and nuclear fusion are the two types of reactions that release nuclear energy: a) Nuclear f..

) whereas artificial radioactivity can be induced in elements with low atomic numbers. iii) Artificial radioactive isotopes generally have short half-life periods. iv) They are very rarely found in nature because they decay off as soon as they are formed due ..