artificial radioactivity

Radioactivity is broadly classified into two categories: a) Natural radioactivity and b) Artificial or Induced radioactivity..

Radioactivity is broadly classified into two categories: a) Natural radioactivity and b) Artificial or Induced radioactivity. If a substance emits radiations by itself, it is said to possess natural radioactivity. If a substance does not posses..

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

Naturally occurring radioactive substances have high nucleon number. It is possible to make artificial radioactive substances by bombarding lighter nuclides with - particles, protons or neutrons. The radioactive substances produced in this manner are known as..

The seventh period is incomplete and contains nineteen elements (Z = 87 to 105). Two elements with atomic number 106 and 107 have been discovered but have not been named. The elements (Z = 87 to 92) are naturally occurring while the elements with atomic numbers 93 to 107 are artificially..

In astronomy, the low temperature microwave radiation that arrives at the earth's surface from all directions of outer space is called background radiation. It is so named because it forms a background to all the radio sources that have been detected by radio telescopes. Cosmic background radiation..

. A g -ray photon has no rest mass and no charge. According to radioactive decay law, Where l is disintegration constant. Half life of a radioactive element is the time during which half the total number of atoms in the element (N 0 ) disintegrate, i.e., in Average life or mean ..

Energy can be defined as the ability to do work. A good source of energy would be the one which would: do a large amount of work per unit volume or mass be easily accessible be easy to store and transport and be economical Fossil Fuel Fossil fuel is a hydrocarbon deposit, such as petro..