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by BenHudock
Last updated 6 years ago

Chemical Elements

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- Estimated crustal abundance: 4.61X10^5 mg/kg (46.6% by weight)- Estimated oceanic abundance:8.57X10^5 mg/L (86% by weight)- Oxygen makes up 21% of the atmosphere's mass, and 19% of its weight- Crust, oceans, and atmosphere combined, Oxygen is the most abundant element on Earth, making up 49.2% of its mass- Oxygen is a distant third from Hydrogen and Nitrogen for the most abundant element in the universe, and makes up under 2% of the universe- Oxygen is the most abundant element in the human body (65% of its total mass!)- Oxygen can really be found anywhere, but where we come into contact with it most is in the air we breathe and the water we drink

USES AND APPLICATIONS1. Melting, refining, and manufacturing of steel and other metals2. The manufacturing of chemicals by controlled oxidation3. Rocket propulsion4. Medical and biological life support5. Oxy-Acetylene welding/cutting of metals6. Mining, production, and manufacturing of stone and glass products7. The treatment of sewage

In what state is Oxygen normally found?- Oxygen is a gas at room temperature, so it is normally found either a gas in the atmosphere or as a component of H2O- Oxygen exists diatomically, which means it naturally forms O2 molecules

BASIC INFORMATION-Chemical Symbol? O- Atomic number? 8- Atomic mass? 15.999- Melting point? 54.36 K- Boiling point? 90.188 K- Metal, nonmetal, or metalloid? Nonmetal- Density (normal)? 0.001429 g/cm^3- Family? Family #16, the Chalcogens- Conductor, insulator, or semi-conductor? Insulator

OXYGENBy: Ben Hudock

- Oxygen has 13 known isotopes, which range in mass number from 12-24- Only 3 of its isotopes, however, are stable (Oxygen-16,17, and 18)- Oxygen-16, with 8 protons and neutrons, is the most common isotope; its relative abundance is 99.762%


- Three men, an Englishman, a Frenchman, and a Swede all claimed to discover Oxygen - Although Carl Shceele discovered it in Sweden in 1772, he did not publish his findings until 1777-Joseph Priestly discovered Oxygen in Englan in 1774- Antoine Lavoisier of France discovered Oxygen in 1775, but is not given credit for anything of the sort- The name Oxygen was coined by Lavoisier, who falsely believed that Oxygen was necessary for the formation of all acids- The name Oxygen comes from the Greek "oxy" meaning acid, and "gene" meaning create

IS IT RADIOACTIVE?- Oxygen in its usual form (Oxygen-16) is not radioactive, but it does have several radioactive isotopes which decay in the Beta mode

The Discovery of Oxygen

- The green and dark red colors in the Northern Lights are caused by oxygen atoms (split high in the atmosphere by electrons from the solar wind)- An oxygen molecule can survive pressures 19 million times higher than standard atmospheric pressure- Although in its gaseous state Oxygen is invisible, as a solid or liquid it is pale blue



CAUTION- Oxygen isn't really a threat to your health, except in its pure form- Breathing 50-100% Oxygen over a prolonged period can cause lung damage- If handling liquid or solid Oxygen, care should be taken to avoid frostbite

Fires need Oxygen in order to burn. The more Oxygen the better!


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