Difference between revisions of "Oxygen"

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(Importing infobox from http://en.wikipedia.org/w/index.php?title=Template:Infobox_oxygen&oldid=300584632)
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{{Elementbox
+
{{Infobox element
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|name=oxygen
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|name = oxygen
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|number=8
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|symbol = O
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|symbol=O
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|left = [[nitrogen]]
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|left=[[nitrogen]]
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|right = [[fluorine]]
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|right=[[fluorine]]
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|above = —
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|above=-
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|below = [[sulfur|S]]
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|below=[[sulfur|S]]
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|atomic-number = 8
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|series=nonmetal
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|atomic-weight = 15.9994(3)
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|series 2=[[chalcogen]]s
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|configuration = [He]2s<sup>2</sup>2p<sup>4</sup>
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|group=16
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|melting-point = −218.8 °C
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|period=2
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|boiling-point = −183.0 °C
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|block=p
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|critical-point = 154.59 K, 5.043 MPa
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|appearance= [[liquid oxygen]] with bubbles of oxygen gas
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|electronegativity = 3.44 (Pauling)
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|image name=Liquid Oxygen2.gif
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|IE1 = 1313.5 kJ/mol
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|atomic mass=15.9994
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|IE2 = 3388.3 kJ/mol
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|atomic mass 2=3
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|IE3 = 5300.5 kJ/mol
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|electron configuration=1s<sup>2</sup> 2s<sup>2</sup> 2p<sup>4</sup>
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|covalent-radius = 66
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|electrons per shell=2, 6
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|vdw-radius = 152
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|density gplstp=1.429
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|enthalpy-fusion=(O<sub>2</sub>) 0.444
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|melting point K=54.36
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|enthalpy-vaporization=(O<sub>2</sub>) 6.82
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|melting point C=-218.79
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|heat-capacity=(O<sub>2</sub>)<br />29.378
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|melting point F=-361.82
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|CAS-number = 7782-44-7
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|boiling point K=90.20
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|EC-number = 231-956-9
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|boiling point C=-182.95
 
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|boiling point F=-297.31
 
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|triple point K=
 
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|triple point kPa=
 
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|critical point K=154.59
 
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|critical point MPa=5.043
 
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|heat fusion=(O<sub>2</sub>) 0.444
 
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|heat vaporization=(O<sub>2</sub>) 6.82
 
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|heat capacity=(O<sub>2</sub>)<br />29.378
 
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|vapor pressure 1=&nbsp;
 
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|vapor pressure 10=&nbsp;
 
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|vapor pressure 100=&nbsp;
 
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|vapor pressure 1 k=61
 
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|vapor pressure 10 k=73
 
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|vapor pressure 100 k=90
 
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|vapor pressure comment=
 
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|crystal structure=cubic
 
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|oxidation states=''[[Oxygen difluoride|2]]'', ''[[Dioxygen difluoride|1]]'', [[peroxide|&minus;1]], &minus;'''2'''<br />(neutral oxide)
 
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|electronegativity=3.44
 
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|number of ionization energies=4
 
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|1st ionization energy=1313.9
 
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|2nd ionization energy=3388.3
 
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|3rd ionization energy=5300.5
 
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|atomic radius=
 
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|atomic radius calculated=
 
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|covalent radius=[[1 E-11 m|66±2]]
 
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|Van der Waals radius=[[1 E-10 m|152]]
 
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|magnetic ordering=[[paramagnetism|paramagnetic]]
 
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|thermal conductivity=26.58x10<sup>-3</sup>&nbsp;
 
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|speed of sound=(gas, 27 °C) 330
 
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|speed of sound rod at 20=
 
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|speed of sound rod at r.t.=
 
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|CAS number=7782-44-7
 
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|EC number=231-956-9
 
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|isotopes=
 
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{{Elementbox_isotopes_stable | mn=16 | sym=O | na=99.76% | n=8 }}
 
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{{Elementbox_isotopes_stable | mn=17 | sym=O | na=0.039% | n=9 }}
 
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{{Elementbox_isotopes_stable | mn=[[oxygen-18|18]] | sym=[[oxygen-18|O]] | na=0.201% | n=10 }}
 
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|isotopes comment=
 
 
}}
 
}}
  

Revision as of 20:13, 14 March 2010

nitrogen ← oxygen → fluorine
—
↑
O
↓
S
Atomic properties
Atomic number 8
Standard atomic weight 15.9994(3)
Electron configuration [He]2s22p4
Physical properties
Melting point −218.8 °C
Boiling point −183.0 °C
Critical point 154.59 K, 5.043 MPa
Chemical properties
Electronegativity 3.44 (Pauling)
Ionization energies
1st 1313.5 kJ/mol
2nd 3388.3 kJ/mol
3rd 5300.5 kJ/mol
Atomic radii
Covalent radius 66
Van der Waals radius 152
Thermodynamic properties
Enthalpy change of fusion (O2) 0.444
Enthalpy change of vaporization (O2) 6.82
Molar heat capacity (Cp) (O2)
29.378
Miscellaneous
CAS number 7782-44-7
EC number 231-956-9
Where appropriate, and unless otherwise stated, data are given for 100 kPa (1 bar) and 298.15 K (25 °C).
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Oxygen (ˈɒksɨdʒɨn) is a colourless gas which makes up about one fifth of the Earth's atmosphere. Its name comes from the Greek ὀξύς (oxys; acid, literally "sharp", from the taste of acids) and -γενής (-genēs; producer, literally "begetter").

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