Oxygen
There are 117 known elements in the periodic table. Out of all of these, the single most important (in my opinion), is oxygen. Why? The answer is simple. Without oxygen, human beings would not be able to live. Oxygen is the main component in the air we breathe, making it essential to the respiration of all animals. It is also found in the compound, H2O (water), which is essential to the life of most all organisms.
Oxygen, chemical symbol “O”, is a colorless, odorless, tasteless element. It is a gas at room temperature, making it classified as a non-metal. It is located in group 6A, second period, and is atomic number 8. It has eight protons, electrons, and neutrons. Its atomic weight is 15.994, and its atomic volume is 14.0 cm3/mol. The boiling point of oxygen is -297.31 degrees Fahrenheit, and the melting point is -361.82 degrees Fahrenheit.
The discovery of oxygen has been credited to two different scientists. The scientist who discovered it first was Carl......

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Title: Oxygen
Approximate Word Count: 781
Approximate Pages: 4 (250 words per double-spaced page)

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