Social science is a major category of academic disciplines, concerned with society and the relationships among individuals within a society.
Continue reading... Classical and Quantum mechanics are the two main fields of mechanics in physics. Classical mechanics came a few hundred years before Quantum mechanics. Subsequently it is less accurate and less reliable then the more recent mechanic field of Quantum mechanics. Despite being outdated, Classical mechanics can still be used for many everyday problems with bigger and slower moving objects.
Because the states an electron occur only at discrete energy levels, they are said to be quantized. The word quantum comes from a Latin word meaning âhow muchâ. The branch of physics that provides the current model of the Hydrogen atom is called quantum mechanics.