Electronic configuration Boron is the chemical element of the periodic table of the elements that has the B symbol and atomic number 5. It is a trivalent semimeter, it is abundantly found in the borax. There are two boron allotropes; Amorphous boron is a brown powder, metallic boron is black. Metallic shape is tough (9.3 on Mohs scale) and is a bad conductor at room temperature. Boron is not found in nature. This element has silicon-like properties and reactivity and is a semiconductor (diagonal relationship). #B #B5 #boron #Electronic_configuration_Boron
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