(The Most Useful/Used Element)

Element Name : (Oxygen)

Symbol: "O"
Family: "Group 16"
Atomic Number: "8"
Atomic Mass: "15.999"
Number of Isotopes: "3"
Proton Number: "8"
Electron Numer: "8"
Neutron Number: "5"
Number of Energy Level: "2"
Number of Valence Electrons: "6"

Joseph Priestly
-Discovered Oxygen
-He did his discovery in Great Britain (1774)
- He was able to produce oxygen by heating Mercuric Oxide (HgO)

-The origin of the name & meaning ; Oxygen, from greek roots that mean "Acid-Producer," was named because of lavoisier's belief that oxygen was present in all acids.  .

Physical Properties of OXYGEN

-Normal Phase: (Solid, Liquid, Gas)
-Color: Pale Blue Color
-Boiling Point: -297.3 F (-180 C)
-Meting Point: -361.8 F (-218.8 C)
-Density: 0.001429
-Texture: Oxygen doesn't haven't texture

Chemical Properties of OXYGEN

-Common Oxidation Number: (-2)
-React with: Hydrogen -> (H2O)
-Most Common Isotope: (O16)


-Animals and plants require Oxygen for respiration.
-Oxygen gas is colorless, odorless , and tasteless.
-Liquid and solid oxygen are pale blue.
-Leonardo da Vinci ; Suggested that air consists of at least two different gases.
-Element is found in the human body, the sun, oceans, and the atmosphere, with oxygen, humans will not be able to survive. It is also part of the Stellar Life Cycle


Source #1:

"Who Discovered Oxygen?"
CliffNotes 2013
Houghton Mifflin Harcourt
March 14, 2014.


Source #2:

"Ten Oxygen Facts"
Chemistry.about 2014
March 14, 2014

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