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First 20 Elements. By: Cody Price.

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Hydrogen Hydrogen is the first element. It has the mass number of 1.00794. The atomic number is 1. Symbol is H. Hydrogen is the lightest element. Common uses for hydrogen are.. In welding it is used for a shielding gas. Companies often use it for cooling rotors in electric power generators.

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Helium Helium is the 2 nd element. Mass: 4.0026 Atomic number: 2 Symbol: He helium will not burn or react with other elements. Common uses : Helps NASAs shuttles to get into space. Thermographic cameras(help see through smoke or rubble.

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Lithium 3 rd element. Mass : 6.941 Atomic Number: 3 Symbol: Li Common Uses disposable and rechargeable batteries absorb neutrons in nuclear fusion.

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Beryillium 4 th element. Mass: 9.012182 Atomic#:4 Symbol: Be Common uses: high-speed aircraft, missiles, space vehicles and communication satellites.

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Boron 5 th element Mass: 10.86 Atomic number: 5 Symbol: B Common use: used to produce glass and ceramics. Sir Humphry Davy, Joseph Louis Gay-Lussac and Louis Jacques Thenard first discovered boron in 1808.

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Carbon 6 th element. Mass: 12.0107 Symbol : C Graphite is a form of carbon; is combined with clays to make the lead in pencils. Carbon is the second most abundant element in the human body. The first is Oxygen

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Nitrogen 7 th element Mass:14.00674 Symbol: N Atomic number: 7 Common Uses used in annealing stainless steel and other steel mill products Nitrogen was discovered by David Rutherford in 1772.

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Oxygen 8 th Element. Mass: 15.9984032 Symbol: O Atomic number: 8 Common Uses: Breathe frequently used to aid respiration of patients in hospitals.

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Fluorine 9 th element. Mass : 18.9984032 Atomic Number: 9 Symbol: F Common Uses: Types of fluorides in water sources prevent tooth decay.

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Neon 10 th Element Mass: 20.1797 Atomic Number:10 Symbol: Ne Common uses: neon advertising signs high-voltage indicators Neon was discovered in 1898 by Scottish chemist William Ramsay and English chemist Morris Travers

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Sodium 11 th element. Mass: 22.989770 Atomic number: 11 Symbol: Na Common uses sodium vapor is used in lamps for street lighting table salt Discovered by: Sir Humphry Davy in 1807.

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Magnesium 12 th Element. Mass:24.3050 Atomic number: 12 Symbol: Mg Common Uses: used in computers for radio-frequency shielding

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Aluminum 13 th element. Mass: 26.981538 Atomic Number: 13 Symbol: Al Common uses: Cans And Kitchen Utensils Danish chemist Hans Christian created it.

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Silicon 14 th element. Mass: 28.0855 Atomic Number : 14 Symbol: Si Common uses Lubricants In medicine for silicon implants.

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Phosphorus 15 th element. Mass:30.973761 Atomic number:15 Symbol: P Common uses: smoke bombs, tracer bullets Discovered by German alchemist Henning Brand.

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Sulfur 16 th element. Mass: 32.066 Atomic number: 16 Symbol: S Common uses : Sulphur is a component of black gunpowder. Sufur is a yellow crystalline solid

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Chlorine 17 th element. Mass: 35.4527 Atomic number:17 Symbol: Cl Common Uses : PVC pipe used to provide safe drinking water, pools.

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Argon 18 th element. Mass:39.948 Atomic number: 18 Symbol: Ar Common uses:electric light bulbs,protective atmosphere for growing silicon.

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Potassium 19 th element. Mass:39.0983 Atomic Number: 18 Symbol: K Common Uses: fertilizers

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Calcium 20 th Element!!!!!!!!!! Symbol: Ca Mass: 40.078 Atomic number: 20 Common uses: calcium from limestone is a component of Portland cement In milk

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Sources http://wanttoknowit.com http://wanttoknowit.com ClipArt-Pictures Google Images