rate of disintegration

Rate of Disintegration - Suppose an element A disintegrates into another element B. Let number of atoms of A when t = 0 is N 0 . A undergoes continuous disintegration into B and hence the number of atoms of A goes on decreasing. Let the number of atoms of A l..

Suppose an element A disintegrates into another element B. Let number of atoms of A when t = 0 is N 0..

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 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 half of its original value is known as t..

The spontaneous breaking up of the nucleus is known as radioactive disintegration or radioactive decay. Radioactive disintegration is found to obey the following two laws: i) Atoms of all radioactive elements are undergoing spontaneous disintegration i.e., are constant..

. It has changed into an atom of another substance which may be unstable (will undergo further disintegration) or stable (will not emit any more particles), it is not possible to control this change. Neither is it possible to reverse it. Changing the temperature, changes the rate..

Thus it is evident that t 1 / 2 of an element does not depend on the initial amount of radioactive element but depends on the value of l . The t 1 / 2 of a particular radioactive isotope is a characteristic constant of that isotope. Values of t 1 / 2 range from millions of years The disintegra..

Thus this phenomenon in which artificial transmutation of a stable non - radioactive nucleus leads to the formation of radioactive isotope is called artificial radioactivity or induced radioactivity. Some of the isotopes produced as a result of neutron bombardment find applications in different are..

The half-life of 92 U 238 against alpha decay is 4.5 x 109 years. How many disintegrations per second occur in 1 g of 92 U 238 ? Suggested solution: Again, since one k mole of any isotope contains Avogadro's number of atoms, there fore 1 g of 92 U 238 contains Half ..

. 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 ..