Boron is one of the many elements in the periodic table. Its atomic number is five and its symbol is the letter B. The atomic weight of boron is 10.811. It is a solid at room temperature. The group number of boron is 13 and the periodic number of boron is 2. It is also in the p block. Its element category is a metalloid. Boron comes from the Arabic word Buraq and the Persian word Burah, which are both meanings of the material called "borax." Boron is a hard element, very hard and very heat resistant. In its crystalline form it is the second hardest of all elements on the Mohs scale – only carbon (diamond) is harder. Only 11 elements have melting points higher than boron: these are C, W, Re, Os, Ta, Mo, Nb, Ir, Ru, Hf and Tc. Boron was discovered by Joseph Louis Gay-Lussac and Louis Jacques Thenard on June 30, 1808. This element has contributed greatly to chemistry over the years. This is the story of boron and how it affected chemistry. The time before Boron was harsh. Since people didn't have boron, they wouldn't have created borax. Which is a substance made for cleaning...