The long form of periodic table can be divided into four main blocks. These four main blocks are s, p, d and f –blocks. The division of elements into blocks is purely based upon the electronic configuration. The nature of the subshell in which the last electron of that atom enters, determines the block to … Read more
A) α-radiation The α-rays are not rays, but consist of a stream of positively charged particles, having 2 units of positive (+) charge, and 4 units of mass. Thus, α-particles are doubly ionized helium atoms i.e., He2+. The α-particles emitted by any radioactive source are shot out with high velocity. The initial velocity depends on … Read more
S.N Nuclear fission Nuclear fusion 1. The reaction in which a single heavy nucleus splits into two or more light nuclei is called nuclear fission reaction. 0n1 +92U235 → 56Ba141 +36Kr92 +30n1 + E The reaction in which two or more light nuclei combine to form a single heavy nucleus is called nuclear fusion reaction. … Read more