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Boron is a metal in group IIIA of the periodic table with atomic number 5, an atomic weight of 10.81, and a density of 2.34 Mg/m 3. Its melting point is 2300 C.
Boron (B), carbon (C), nitrogen (N), and oxygen (O) are elements with atomic numbers 5, 6, 7, and 8, respectively, occupying ...