Oxidation Number : How to find Oxidation State
Oxidation Number or Oxidation state The charge present on an atom or group of atoms is called the oxidation number or Oxidation State of that atom or group of atoms.…
Iodine : Properties, Preparation and uses
Iodine History Iodine was discovered by Bernard Courtois in 1811. Its vapors are purple in colour. For this reason Galusek named it Iodine (Greek: Iodas = Violet) in 1813. Humphry…
Bromine – Preparation, Physical and Chemical Properties a Uses
Bromine History Bromine was discovered by Antoine-Jérôme Balard in 1826. It is a very volatile and syrupy liquid of reddish brown color. It has a strong and unpleasant odor. Hence…
Chlorine Property : Physical and Chemical Properties | Uses
Chlorine Property : Physical It is a greenish-yellow color with a pungent odor and a poisonous gas.It is soluble in water. Its aqueous solution is called chlorine water.It is heavier…
Theories of reaction rates: Chemical Kinetics
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.…
Proton | Discovery, Mass, Charge | Chemistry Notes
Discovery of Proton Goldstein discovered in 1886 that if a perforated cathode was used in the middle of the immersion tube and flowed into the gases at low pressure, a…
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