Discovered : known to ancient civilisations.
Origin : The name comes from the Anglo-Saxon ‘iren’, and the symbol from the Latin ‘ferrum’, meaning iron.
Description :Iron is an enigma - it rusts easily and yet is the most important of all metals, world production exceeds 700 million tons a year. Small amounts of carbon are added to iron to produce steel and when chromium.
is added to this, the result is non-corroding stainless steel (small amounts of nickel may also be added). Iron is also an essential element for all forms of life. The average human contains about 4 grams, much of which circulates as haemoglobin in the blood, the job of which is to carry oxygen from our lungs to where it is needed. If the diet does not contain 10 milligrams a day, anaemia will eventually develop. Foods such as liver, kidney, molasses, brewer’s yeast, cocoa and liquorice contain a lot of iron.
Atomic No:26 Mass No:56
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Energy that matter processes by virtue of its motion.
The elements in a horizontal row of the periodic table.
At constant temperature the volume occupied by a definite mass of a gas is inversely proportional to the applied pressure.
A ternary compound containing H, O, and another element, often a nonmetal.
Spectrum that contains all wave-lengths in a specified region of the electromagnetic spectrum.
A substance added to react with the charge, or a product of its reduction, in metallurgy, usually added to lower a melting point.
Study of chemical changes produced by electrical current and the production of electricity by chemical reactions.
Trapping of heat at the surface of the earth by carbon dioxide and water vapour in the atmosphere.
Electrolytic cell for the commercial electrolysis of molten sodium chloride. For further information see Electrochemistry or Fuel Cells.
One faraday of electricity corresponds to the charge on 6.022 x 1023 electrons, or 96,487.301 coulombs.
A vertical column in the periodic table, also called a family.
The amount of matter that would be converted into energy if an atom were formed from constituent particles.
All the forces of attraction among particles of a liquid.
The degree of polymerization, the average number of monomer units per polymer unit.
The buildup of a product of oxidation or a reduction of an electrode, preventing further reaction.
Conjugated Double Bonds
Double bonds that are separated from each other by one single bond -C=C-C=C-.
Any of a number of lines corresponding to definite wavelengths of an atomic emission or absorption spectrum, represents the energy difference between two energy levels.
Alpha (a) Particle
Helium ion with 2+ charge, an assembly of two protons and two neutrons.
Refers to an optically active substance that rotates the plane of plane polarized light counterclockwise, also called levo.
Potential difference between two electrodes, a measure of the chemical potential for a redox reaction to occur.