The reactions in which the nucleus of an atom converts into new atoms and emits a large amount of energy are called Nuclear Reactions.Example: When electrons are showered on Uranium-235…
Collision Theory (i) The basic requirement for a reaction to occur is that the reacting species must collide with one another. This is the basis of collision theory for reactions.…
Scientists Bohr and Bury introduced this scheme in 1921 to find the electronic configurations of atoms, that is, the number of electrons in their orbitals. This scheme is known as…
Thomson’s Atomic Model J. J. Thomson presented the first model of the atom in 1904. It is also called Tomson's Watermelon Model. According to this, the atom is made up…
Nuclear Stability There are three types of fundamental particles in an atom, electron, proton and neutron. Of these, protons and neutrons are in the nucleus of the atom and…
Atomic Weight The atomic weight of an element is a number that shows how many times the weight of one atom of that element is 1/12 heavier than that of…