us government bonds

The size of the atom is significant in governing its property. If the atom is assumed to be spherical, then the radius of the sphere gives the atomic radius. But it is difficult to exactly determine the radius of the atom because The probability of finding the electron is never zero ev..

Intrinsic Semiconductors - The atoms in a crystal are strongly held by covalent bonds in space at tetrahedral angles. On receiving energy, a covalent bond breaks and an electron is free to move in crystal lattice. This electron leaves an empty space (shown as an open circle) cal..

Energy is the capacity to do work. All living organisms require energy for carrying on their vital metabolic activities. The primary source of energy for living system is solar radiation. The radiant energy of sunlight cannot be utilised directly by all living organisms. This ability rests only wi..

Solubility of a gas in a liquid increases with the increase in partial pressure of the gas above the solution. Quantitatively, this is governed by Henrys law, which states that at constant temperature. The mass of a gas dissolved in a given volume of the liquid is directly proportional ..