Elements: Sulfur

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Chemical Elements

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Elements: Sulfur

Atomic Number: 16Atomic Mass: 32.07Melting Point: 115.2Boiling Point:444.6# of Protons/Electrons: 16Number of Neutrons: 16Classification: Non-metal

SULFUR Symbol: S

HISTORYSulfur is found in the Earth’s crust principally as sulfide and sulfate minerals and as the free element. It is cycled through a complex series of transformations in nature. Sulfur wasn't discovered until 1789, by a French scientist named Anthony L. Lavoisier. He discovered it and included it on the list of nonmetals on the Periodic Table. Then in 1822 Russian scientist E. Micherlich fully discovered it characteristics. Some scientist in the East countries used it for air-conditioning of temples. And Ancient Greeks and Romans used as a cleanser, bleach, and medicine. It also was a treatment that helped many diseases for Greeks and Arabians. It is a very useful and abundant element.

PHYSICAL PROPERTIES- Sulphur usually occurs as a pale yellow, brittle, crystalline solid.- It has a faint characteristic smell, but no taste.- Sulphur is insoluble in water; it is not ever wetted by it. If a pinch of powdered sulphur is dropped into water, the particles will not sink but spread on the surface to form a yellow film.- Sulphur is highly soluble in carbon disulphide and sparingly soluble alcohol and ether.- It occurs in a number of allotropic forms a two of which, the rhombic an d monoclinic, are crystalline.

PHYSICAL PROPERTIES (CONT.)- It has a high boiling point of 444.6ºC - Has a high melting point of 120ºC - Density: 2.08 g/mL - Is not radioactive- Sulfur has a color that is bright yellow- Sulfur is odorless (unless it is heated; where it then smells like rotten eggs) - Is not very hard- Can be very brittle- Malleability: low - State at Room Temperature: Solid

REACTIVITYSulfur really doesn’t have any chemical properties because it doesn’t react with anything naturally. Sulfur is non- reactive. It really doesn’t react with that many compounds. It is in the 16th period, so it only needs 2 more electrons to be stable (-2 charge for the ion that's formed). So therefore sulfur is very dull and doesn’t react well.Sulphur reacts with halogens upon heating, fluorine (burns to form the hexafluoride sulphur(VI) fluoride), molten sulphur to form disulphur dichloride, S2Cl2, and hot aqueous potassium hydroxide, (KOH, to form sulphide and thiosulphate species).


Atomic Structure


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