Basic Information

Name: Boron 
Symbol: B 
Atomic Number: 5 
Atomic Mass: 10.811 amu 
Melting Point: 2300.0 °C (2573.15 K, 4172.0 °F) 
Boiling Point: 2550.0 °C (2823.15 K, 4622.0 °F) 
Number of Protons/Electrons: 5 
Number of Neutrons: 6 
Classification: Metalloid 
Crystal Structure: Rhombohedral 
Density @ 293 K: 2.34 g/cm3 
Color: brownish
Date of Discovery: 1808 
Discoverer: Sir Humphry Davy, J.L Gay-Lussac 
Name Origin: From borax and carbon 
Uses: heat resistant alloys 
Obtained From: kernite