PERIODIC TABLE

Oxygen

Atomic No. 8 O Oxygen

About Oxygen

Oxygen is a nonmetal with atomic number 8 that readily forms compounds with most other elements. Its oxides include silica for glass, alumina for electrically insulating ceramics and manganese dioxide for battery cathodes. These examples illustrate how bonding and crystal structure allow oxygen containing materials to perform very different optical, mechanical and electrochemical functions.

Properties

Atomic Number
8
Atomic Symbol
O
Atomic Mass
15.9994
CAS No.
7782-44-7
Density
1.429 g/l
Series
other nonmetal
Melting Point
-218.3°C
Boiling Point
-182.9°C
Thermal Conductivity
0.0002658 W/cm °C
Heat of Fusion
0.222 kJ/mol
Heat of Vaporization
3.41 kJ/mol
Electronegativity
3.44 pauling
Crystal Structure
Monoclinic

Oxygen Products

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