Tin

Tin: Sn Atomic number: 50 Atomic Mass: 118.71 Phase: Solid Density: (white) 7.365 g·cm−3 (gray) 5.769 g·cm−3 Melting Point: 231.93 °C, 449.47 °F Boiling Point: 2602 °C, 4716 °F google images

=Facts= When a bar of tin is bent, you can hear a crackling sound. Tin is often used to cover other materials to prevent corrosion. Tin is the 49th most abundant element and has ten stable isotopes, meaning that there are ten different forms of balanced tin formations out of all the elements on the periodic table of the elements. Tin dosen't occur as a natural element, but needs to be extracted from other metal ores. Tin resists corrosion from water but can be attacked by acids. Tin is used in silverware and kitchen utensils. Since they contain tin a small amount of tin is transmitted into the food you are eating or cooking. The highest amount can be up to 300mg/kilograms. Tin is nonreactive to water and oxygen.

Tin is a main group metal in group 14. It is used to coat other metals to avoid corrosion; if you combine tin and copper together you get bronze. Tin can resist corrosion from water but can be attacked by acids and alkalis. Tin is a highly crystalline white-silver metal and when broken it makes a sound called the "tin cry" because of the crystals breaking. Its atoms form a covalent structure so they cannot move freely, which doesn't give tin a metallic properties.

=**History**=

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Tin is on of the oldest metals know to man. The use of domestic utensils mad of tin dates back from 3500 B.C. The Phoenicians had a very important role in the spread of brass utensils due to its commercial trades with Britain, Spain and the Middle East. Tinned iron was only developed in the 14th century in Bohemia, and tinned steel appeared only in the 17th century. ===== USES OF TIN: > Molten glass used in the production of windows is often floated on top of molten tin to create a flat surface.
 * 1) About half of all tin that is produced is used for solder. This is usually used for joining electric circuits. Traditionally solder is made from a lead-tin alloy, but due to the hazardous nature of lead it is being replaced by other suitable metals.
 * 2) Tin is used for coating lead, zinc of steel to prevent corrosion. Steel containers coated with tin are commonly used to preserve food.
 * 3) Tin is used in many specialized alloys including pewter and bronze. It is also used to create a special type of bronze called bell metal that is used for making bells.
 * 4) Tin has also been used to create decorative housewares. Tin is decorated in a process called punched tin and it is commonly used to make decorative lanterns.[[image:220px-Punched_tin_barn_lantern.jpg]]
 * 1) A chemical compound of tin and fluoride, known as stannous fluoride, is used in toothpaste to improve dental health.
 * 2) Tin, together with lead, is also used in the metal pipes of the pipe organ.
 * 3) A certain type of chemical compounds of tin called organotin compounds are used to stabilize PVC plastics and as a biocide.

As we are aware of what tin is and the fact it is on the periodic table, we know it better as tin foil. Tin foil is a thin metallic sheet with some structure that we use to wrap food in. We wrap out food in the foil because it is a convenient way to transport food, as well as a great way to store leftovers. Sometime we get tin foil swans that contain our leftovers (only as expensive restaurants.) Another great thing about tin foil, unlike glad wrap, it can be reused. It has a more integrity to the structure and can be washed off with water. However, you need to be careful when reheating your left overs, because tin causes explosions when heated in the microwave. If you want to keep your leftovers in the tin foil while heating up, the best way would to place it in the oven or on a grill.

An example of where one could be able to find tin would be in the ore cassiterite.