General: |
|
Name: Oxygen
|
Symbol: O
|
|
Group: Non-Metal, Chalcogen
|
Atomic weight: 15.9994
|
|
Density @ 293 K: 0.001429 g/cm3
|
Atomic volume: 14.0 cm3/mol
|
|
Group: Non-Metal, Chalcogen
|
discovered: 1774
|
|
States: |
|
state (s, l, g): g
|
|
melting point: 54.8 K
|
boiling point: 90.2 K
|
|
Heat of fusion: 0.22259 kJ/mol
|
Heat of vaporization: 3.4099 kJ/mol
|
|
Energies: |
|
1st ionization energy: 1313.9 kJ/mole
|
|
electronegativity: 3.44
|
2nd ionization energy: 3388.2 kJ/mole
|
|
electron affinity: 140.97875 kJ/mole
|
3rd ionization energy: 5300.3 kJ/mole
|
|
Specific heat: 0.92 J/gK
|
heat atomization: 249 kJ/mole atoms
|
|
Oxidation & Electrons: |
|
Shells: 2,6
|
electron configuration: [He] 2s2 2p4
|
|
minimum oxidation number: -2
|
maximum oxidation number: 2
|
|
min. common oxidation no.: -2
|
max. common oxidation no.: 0
|
|
Appearance & Characteristics: |
|
structure:
|
color: colorless
|
|
uses: rocket fuel, steel mfr.
|
toxicity: no
|
|
hardness: mohs
|
characteristics: diatomic,2 forms: O2, O3
|
|
Reactions: |
|
reaction with air: none
|
|
reaction with 6M HCl: none
|
reaction with 6M HCl: none
|
|
reaction with 15M HNO3: none
|
reaction with 6M NaOH: none
|
|
Other Forms: |
|
number of isotopes: 3
|
hydride(s): H2O
|
|
oxide(s): O2 O3
|
chloride(s): Cl2O ClO2 Cl2O7
|
|
Radius: |
|
ionic radius (2- ion): 126 pm
|
ionic radius (1- ion): pm
|
|
atomic radius: 73 pm
|
ionic radius (1+ ion): pm
|
|
ionic radius (2+ ion): pm
|
ionic radius (3+ ion): pm
|
|
Conductivity: |
|
thermal conductivity: 0.03 J/m-sec-deg
|
|
electrical conductivity: 0 1/mohm-cm
|
polarizability: 0.793 A^3
|
|
Abundance: |
|
source: Air
|
|
rel. abund. solar system: 7.377 log
|
abundance earth's crust: 5.7 log
|
|
cost, pure: 0.3 $/100g
|
cost, bulk: $/100g
|
|
