free quantum mechanics

Quantum Mechanical Model of the Atom - Two new theories came to substantially modify Bohr's Atomic model. They a..

Two new theories came to substantially modify Bohr's Atomic model. They a..

Quantum Theory of Covalent Bond - Although the Lewis structures give an idea of the valence electrons around the atom, in reality it does not precisely locate the position of the electrons in the chemical bond. The behaviour of electrons in molecules and compounds is made by the valence b..

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The first four pairs of spiracles are involved in inspiration or drawing in of air (that is oxygen-rich). This air passes through the trachea and the air sacs to reach the tracheoles. Mechanism of Respiration in Insects The ends of the tracheoles are filled with fluid. This end enter..

The accepted mechanism for sulphonation is given below: ..

. The digestive system consists of mouth cavity, pharynx, oesophagus, stomach, small intestine and large intestine. Mouth cavity consists of tongue and two rows of teeth. Saliva secreted by three large salivary glands and other smaller glands gets mixed with the food by the action of the tongue and..

A low-dose x-ray source moves in an arc (360 o ) around a specific part of the body being scanned and repeatedly sends out x-ray beams. As the beams pass through the body, the tissues absorb small amounts of radiation. Once the beam passes through, they are converted by light sensitive crystal det..

Schrodinger wave equation, when solved for hydrogen atom gives mathematical Y functions, which describe the allowed energy states in an atom. It is observed that physical meaningful solutions required three constants n, l and m, which are called quantum numbers. Each electron in an atom i..