alpha decay protons

Mass Energy Relation - Einstein derived a formula given the relation between mass and energy as E = mc 2 . Here 'm' is the mass, 'c' is the velocity of light and 'E' is the energy. This equation has given equal states to mass and energy. It states that a mass m has energy E given by the above formu..

Nuclear Fission - Neutrons are considered as the best projectile particles to hit the target (uranium) nucleus. The uranium may absorb these neutrons and become 9 2 U 2 3 6 which later splits into two smaller nuclei. In addition two neutrons are released and energy is also released. This process is..

12. - 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 life T ..

Discovery of Radioactivity and Nature of Radiations - 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..

During radioactive emissions, the product formed as a result of the emission of an a - particle followed by the emission of two b - particles is an isotope of the parent elemen..

The electric potential energy of the alpha particle at the distance of closest approach from the nucleus was found to be equal to Potential energy x charge on a partic..

They are not deflected by electric and magnetic fields. They affect photographic plates. The ionising power is very low compared to alpha-particles and beta-particles. They are electromagnetic waves like X-rays and light rays. The wavelength of these rays are shorter than that ..