carbon

Lead

Mar 18, 1000

The Single Most Important commercial use of lead is in the manufacture of lead-acid storage batteries (see battery, electric).

Arsenic

Mar 21, 1250

It is also used as an n-type dopant in semi conductive electronic devices.Arsenic is also used in numerous pesticides, herbicides and insecticides though this practice is becoming less common as more of these products are banned

Zinc

Dec 8, 1500

Zinc is used in building cars and die castings. Die castings are largely used in the electrical and hardware industries. Zinc is also used to galvanize metals.

Antimony

May 5, 1600

It is used in semiconductor and metal alloys such as printing.

Platinium

Oct 3, 1700

Contactors used in heating elements and thermocouples for measuring high temperatures. It has uses in jewelry and medicine for the preparation of some antitumor drugs and dental fillings.

Nickel

Aug 17, 1751

Nickel is mainly used as alloys having many applications where control dilation interested confer special mechanical properties, enhance corrosion resistance, having specific magnetic properties or electrical conductivity decrease

Nitrogen

Aug 31, 1755

One of the main uses is the manufacture of fertilizers, although it is used to prepare explosive, some dyes and for the manufacture of ammonia.

oxigen

May 19, 1774

It is used for refining steel in the steel industry, for the industrial preparation of many chemicals, such as sulfuric and nitric acids, acetylene and epoxyetano.

Chlorine

Oct 27, 1774

Chlorine is used in water treatment and in the manufacturing process of paper, plastic, chemical cleaners and other products. Chlorine is used in liquid or compressed gas

Aluminium

Aug 18, 1825

Its high thermal conductivity, is used in cookware and pistons in internal combustion engines.

Fluorine

Sep 21, 1886

Is used to make polymers such as Teflon (-F2C-CF2-) which is a heat resistant resin and chemicals, freon (CF2C2), dentifrices (sodium fluorophosphate) and water treatment (KF).

Argon

Apr 20, 1894

Also used as inert gas welding some metals and prevent oxidation of the metals during the welding process. Has applications in the laboratory for the manufacture of silicon crystals.

Helium

Oct 20, 1895

In people with asthma and other respiratory problems are also commonly used mixtures of oxygen and helium as its lower density and greater fluidity make breathing easier. Also used as an inert atmosphere in arc welding for light metals such as aluminum and magnesium alloys which can be oxidized if the welding is performed in the presence of oxygen, helium protects the heated portions of the attack by the air

Radium

Jan 28, 1898

The radio has been for a long time the only radioisotope used therapeutic irradiation treatments. Irradiation with radio has a harmful effect on living cells, and overexposure occurs burns. Cancer cells, however, are often more sensitive to radiation than normal cells, and can be killed without seriously damaging healthy tissues if appropriately controls and directs radiation. The radius is now used only in the treatment of a few types of cancer.

Krypton

Feb 28, 1898

Krypton is used alone or with argon and neon in light bulbs. Emits a crisp characteristic orange-red shock tube, these are used to illuminate runways because red light is visible from long distances, penetrate fog and has more range than ordinary light. In 1960 the International Commission on Weights and Measures adopted as a standard for the underground 1,650,763.73 wavelengths of light emitted by the isotope krypton - 86.

Polonium

Aug 20, 1898

Isotopes of polonium are a good source of pure alpha radiation. They are used in nuclear research with elements such as beryllium to emit neutrons when bombarded with alpha particles. Also used in devices that ionize the air to remove electrostatic charge in some photography and printing processes.

Neon

Sep 20, 1898

It is used in discharge tubes pure or mixed with mercury vapor and argon to get different colors. It is also used helium-neon lasers. Uses liquid neon instead of liquid hydrogen for cooling. Has a cooling power 40 times higher than the liquid helium

Actinium

Jan 19, 1899

It is a soft radioactive metal that glows in the dark. Isotopes are known with mass numbers between 209 and 234, the most stable 227Ac has a half life of 21.7 years. The 227Ac a decay product of 235 U, is a beta-emitter with its main decay products are thorium-227, radium-223 and several short-lived isotopes of radon, bismuth, polonium and lead. In equilibrium with its decay products, is a powerful alpha radiation emitting source.

Radon

Oct 20, 1900

Uranium ores emit radon and radioactive emanations presence in parts thereof reveal the existence of such minerals, which is a geochemical prospecting technique. This isotope can be used in the treatment of certain malignancies. The gas is placed in a tube, usually made ​​of glass or gold, called seed radon, which is inserted into the diseased tissue.

Franicium

May 1, 1939

Francio use is limited to the formation of alkoxides (metal legacy alcohols) such as CH3CH2OFr.
The reason is that for physicochemical evidence and position in the periodic table, it is known that the francium is the most electronegative of all elements. This means that their bonds are very strong, and therefore, it is difficult to break into a Sinesis or chemical method. It is true that dictates its reactivity instability, because the compounds formed by this are exceedingly stable.

Plutonium

Oct 29, 1940

It is used as nuclear fuel for power plants and, unfortunately, for nuclear weapons. One kilogram is equivalent to about 22 million kilowatt-hours. Complete detonation of one kilogram of plutonium produces an explosion equivalent to 20,000 tons of chemical explosive. Its importance lies in the property of being readily fissionable with neutrons and its availability in substantial amounts as estimated annual production of around 20,000 kg.

Americium

Oct 20, 1944

243Am target used in particle accelerators or nuclear reactors for the production of heavier synthetic elements. 241Am is used as a gamma radiation source to perform scans, but causes serious overexposure. Has also been used as a controller of thickness in the flat glass industry as a source of decoupling for smoke detection devices.

Dubnium

Oct 20, 1970

None.

Uranium

Sep 5, 1996

Devices used in inertial guidance, gyroscopes, as a counterweight for aircraft control as shielding material . Uranium metal is used as white on radiographs of high energy X- rays , nitrate has been used as photographic toner , and the acetate is used in analytical chemistry.

Phosphorus

Oct 31, 2013

White phosphorus is used in the preparation of rat poison, insecticides and in the fireworks industry.
Red phosphorus is used to make matches

Tin

Jan 20, 2100

Is also used in the titanium alloy in the aerospace industry and as an ingredient in some insecticides

Iron

Apr 15, 2500

Pure iron has limited use. Most of the iron used in processed forms such as wrought iron and steel.

Gold

Feb 5, 3000

coins and jewelry.

Silver

Jun 2, 3000

Silver is also used to manufacture electronic components and electrical cable and high-speed semiconductor good conductivity.

Copper

Sep 21, 5000

The copper coin has been used throughout history and also for cooking utensils, vats and decorative objects. Long been used to protect the bottom of the wooden vessels

Carbon (pre-history)

Oct 18, 6000

power generation, steel and cement manufacturing and industrial heating processes

Sulfur (pre-history)

Dec 11, 7000

Is also used in the manufacture of matches for the vulcanized rubber and finely divided and mixed with lime, as a fungicide for plants.