Boron

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by 34acarter
Last updated 7 years ago

Discipline:
Science
Subject:
Chemistry
Grade:
9

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Boron

BORON

History

Properties

Fun Facts!

Boron was known for thousands of years, but was only isolated in 1808 by Sir Humphry Davy, Joseph-Louis Gay-Lussac, and Louis-Jaques Thenard. It was isolated by combining boric acid (H3BO3) with potassium.

-Boron is found in food and the environment-Boron can be taken as supplements-Boron helps build strong bones and treats oseoarthritis-Boron was used as a food preservative between WWI and WWII-Boron, in tiny amounts, is used in calcualtors and computers-Boric acid is used in eye wash-Boric acid is also used in making borosilicate glass-Borax is used for laundry detergent

Societal Applications

- Boron is a metalloid- Boron is never found in pure on Earth, but is found in small amount on meteoroids- The largest boron deposits are in Turkey- Boron is less reactive than the elements found near it on the Periodic Table

- Boiling point = 3927 degrees celsius- Melting Point = 2076 degrees celsuis- Solid at room temperature- Black or brown crystal- 9.5 hardness; Diamond is a 10- Density at 20 degrees celsius = 2.34g/cm3- Atomic number 5- Atomic mass of 10.81- Group 13, Period 2- Good conductor at high temperatures

Boron (above). Boron burns a bright green when lit (left).

Borosilicate glass is resistant to thermal shock, thus used for lab beakers and tubes. It's also sometimes used for art.

Borax, also known as sodium borate, is a compound with boron, oxygen, hydrogen, and sodium

B for Boron!


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