Show Elements
ID 17
Symbol B
Name Boron
Density (g/cm<sup>3</sup>) 2.46
Atomic Number 5
Molecular Weight 10.81
Melting Point (K) 2348
Boiling Point (K) 4273
Specific Heat Capacity (J/kg K) 1030
Electro Negativity 2.04
Curie temperature (K)
Bohr Magneton (J/T)
Magnetization Saturation (MA m<sup>-1</sup>)
Crystal Structure Rhombohedral
Appearance Black-brown
Element category Metalloid
Magnetic ordering Diamagnetic
Discovery Joseph Louis Gay-Lussac and Louis Jacques Thénard (30 June 1808)
General Information Boron is a chemical element with the symbol B and atomic number 5. Produced entirely by cosmic ray spallation and supernovae and not by stellar nucleosynthesis, it is a low-abundance element in the Solar System and in the Earth's crust.
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