Basic Information
Name: OXYGEN
Symbol: O
Classification: Boron is a metalloid
color:black
Atomic weight:10.81
state: solid
Melting Point:2075 oC, 2348 K
Boiling Point:3727 oC , 4000 K
Shells: 2,3
Electron configuration: 1s2 2s2 2p1
Density @ 20oC:2.34 g/cm3
Atomic volume: 4.6 cm3/mol
Structure: hcp: rhombohedral; B12 is icosahedral.
Hardness:9.3 mohs