Boron's symbol is B, it is classified as a metalloid and it is a solid at room temperature. Its atomic number is 5 and its atomic weight is 10.81.
Boron was discovered in 1808 by Sir Humphry Davy, Joseph L. Gay-Lussac and Louis J. Thenard. It has a melting point of 3,769 degrees Fahrenheit, and it boils at 7,101 degrees Fahrenheit. Boron is a rare element on Earth, and it is only found in compounds. It has five protons and five electrons.
As of 2015, the largest boron mine in the world is located in California. Boron is used in making glass and ceramics, and in insecticides, detergents and some cosmetics.