Name: Oxygen
Symbol: O
Atomic Number: 8
AtomicWeight: 15.999400
Family: non metals
CAS RN: 7782-44-7
Description: A colorless gas, liquid is pale blue
State (25 °C): Gas
Melting Point: 54 °K
Boiling Point: 90 °K
Density: .001141 g/cm³
Oxidation states: -2
Electron Configuration: [He] 2s²2p⁴
Radius: 60 pm (Covalent)
Electronegativity: 3.44 (Pauling Scale)

1st Ionization Energy: 1314 KJ/mole
2nd Ionization Energy: 3388 KJ/mole
3rd Ionization Energy: 5301 KJ/mole