Oxygen, Ilt (O)

grundstof med atomnummer 8

Atomnummer	8
Atommasse	15.999
mass number	16

Gruppe	16
Periode	2
Blok	p

proton	8 p⁺
neutron	8 n⁰
elektron	8 e^-

Animated Bohrs atommodel of O (Oxygen, Ilt)

Fysisk Egenskab

Atomradius	60 pm 171 pm
molar volume	14 cm³/mol
Kovalent Radius	63 pm 57 pm 53 pm 65 pm 66 pm
Metallic Radius
Ionisk radius	135 pm 136 pm 138 pm 140 pm 142 pm
Crystal Radius	121 pm 122 pm 124 pm 126 pm 128 pm
Van der Waals-radius	155 pm 152 pm 340,46 pm 152 pm 182 pm 158 pm 350 pm
massefylde	0,001308 g/cm³

Kemisk Egenskab

{ERROR}

energi

proton affinity	485,2 kJ/mol
electron affinity	1,4611135 eV/particle
ioniseringsenergi	13,618054 eV/particle 35,12111 eV/particle 54,93554 eV/particle 77,4135 eV/particle 113,8989 eV/particle 138,1189 eV/particle 739,32679 eV/particle 871,40985 eV/particle

Fordampningsvarme
smeltevarme
standard enthalpy of formation	249,229 kJ/mol
elektron

Elektronskal	2, 6

Valenselektron	6 ⓘ

electron configuration	[He] 2s² 2p⁴ⓘ 1s² 2s² 2p⁴

Oxidationstrin	-2, -1, 0, 1, 2
Elektronegativitet	21,36 eV/particle 0.304575 3.44
Electrophilicity Index	2,337978174823841 eV/particle
fundamental state of matter

stoffase
gaseous state of matter	Diatomic
Kogepunkt	90,188 K
Smeltepunkt	54,36 K
critical pressure	5,043 MPa
critical temperature	154,581 K
trippelpunkt	54,3584 K 0,1463 kPa
appearance
farve	Sort #f00000 #ff0d0d #f32e42
appearance
Brydningsindeks	1,000271
materialeegenskab
Varmeledningsevne	0,027 W/(m K)
Termisk ekspansion
molar heat capacity	29,378 J/(mol K)
Varmefylde	0,918 J/(g⋅K)
Adiabateksponenten	7/5
electrical properties
type
specifik ledningsevne
Elektrisk resistivitet
superledning
Magnetisme
type	paramagnetic
magnetic susceptibility (Mass)	0,000001335 m³/Kg
magnetic susceptibility (Molar)	0,0000000427184 m³/mol
magnetic susceptibility (Volume)	0,00000190772
magnetic ordering
Curietemperaturen
Néel temperature
struktur
Krystalstruktur	{ERROR}
lattice constant	6,83 Å
Lattice Angles	π/2, 2.313085, π/2
mechanical property
hårdhed
Kompressibilitetsmodul
Forskydningsmodul
E-modul
Poissons forhold
speed of sound	317,5 m/s
klassificering
Kategori	Actinider, Nonmetals
CAS Group	VIB
IUPAC Group	VIA
Glawe Number	97
Mendeleev Number	99
Pettifor Number	101
Geochemical Class	major
Goldschmidt classification	litophile

øvrige

Gas Basicity	459,6 kJ/mol
polarizability	5,3 ± 0,2 a₀
C6 Dispersion Coefficient	15,6 a₀ 16,7 a₀
allotrope	Dioxygen, Ozone, Tetraoxygen
Neutron cross section	0,00028
Neutron Mass Absorption	0,000001
quantum number	3P2
rumgruppe	12 (C12/m1)

Isotopes of Oxygen

Stable Isotopes	3
Unstable Isotopes	15
Natural Isotopes	3

¹¹O

mass number	11
neutron number	3
Relative Atomic Mass	11,051249828 ± 0,000064453 Da
g-factor
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	198 ± 12 ys
spin	3/2
nuclear quadrupole moment
opdagelsesdato	2019
Paritet	-

decay mode	Intensitet
2p (2-proton emission)	100%

¹²O

mass number	12
neutron number	4
Relative Atomic Mass	12,034367726 ± 0,000012882 Da
g-factor	0
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	8,9 ± 3,3 zs
spin	0
nuclear quadrupole moment	0
opdagelsesdato	1978
Paritet	+

decay mode	Intensitet
2p (2-proton emission)	100%

¹³O

mass number	13
neutron number	5
Relative Atomic Mass	13,024815435 ± 0,000010226 Da
g-factor	0,92613333333333 ± 0,0002
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	8,58 ± 0,05 ms
spin	3/2
nuclear quadrupole moment	0,0111 ± 0,0008
opdagelsesdato	1963
Paritet	-

decay mode	Intensitet
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%
β⁺ p (β⁺-delayed proton emission)	10.9%

¹⁴O

mass number	14
neutron number	6
Relative Atomic Mass	14,008596706 ± 0,000000027 Da
g-factor	0
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	70,621 ± 0,011 s
spin	0
nuclear quadrupole moment	0
opdagelsesdato	1949
Paritet	+

decay mode	Intensitet
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹⁵O

mass number	15
neutron number	7
Relative Atomic Mass	15,003065636 ± 0,000000526 Da
g-factor	1,43816 ± 0,00024
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	122,266 ± 0,043 s
spin	1/2
nuclear quadrupole moment	0
opdagelsesdato	1934
Paritet	-

decay mode	Intensitet
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹⁶O

mass number	16
neutron number	8
Relative Atomic Mass	15,99491461926 ± 0,00000000032 Da
g-factor	0
natural abundance	99,757 ± 0,011
radioaktivitet	stable isotope
halveringstid	Not Radioactive ☢️
spin	0
nuclear quadrupole moment	0
opdagelsesdato	1919
Paritet	+

¹⁷O

mass number	17
neutron number	9
Relative Atomic Mass	16,99913175595 ± 0,00000000069 Da
g-factor	-0,7574172 ± 0,000004
natural abundance	0,03835 ± 0,00096
radioaktivitet	stable isotope
halveringstid	Not Radioactive ☢️
spin	5/2
nuclear quadrupole moment
opdagelsesdato	1925
Paritet	+

¹⁸O

mass number	18
neutron number	10
Relative Atomic Mass	17,99915961214 ± 0,00000000069 Da
g-factor	0
natural abundance	0,2045 ± 0,0102
radioaktivitet	stable isotope
halveringstid	Not Radioactive ☢️
spin	0
nuclear quadrupole moment	0
opdagelsesdato	1929
Paritet	+

¹⁹O

mass number	19
neutron number	11
Relative Atomic Mass	19,003577969 ± 0,00000283 Da
g-factor	0,612952 ± 0,000028
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	26,47 ± 0,006 s
spin	5/2
nuclear quadrupole moment	0,00362 ± 0,00013
opdagelsesdato	1936
Paritet	+

decay mode	Intensitet
β⁻ (β⁻ decay)	100%

²⁰O

mass number	20
neutron number	12
Relative Atomic Mass	20,004075357 ± 0,00000095 Da
g-factor	0
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	13,51 ± 0,05 s
spin	0
nuclear quadrupole moment	0
opdagelsesdato	1959
Paritet	+

decay mode	Intensitet
β⁻ (β⁻ decay)	100%

²¹O

mass number	21
neutron number	13
Relative Atomic Mass	21,008654948 ± 0,000012882 Da
g-factor
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	3,42 ± 0,1 s
spin	5/2
nuclear quadrupole moment
opdagelsesdato	1968
Paritet	+

decay mode	Intensitet
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)

²²O

mass number	22
neutron number	14
Relative Atomic Mass	22,009965744 ± 0,000061107 Da
g-factor	0
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	2,25 ± 0,09 s
spin	0
nuclear quadrupole moment	0
opdagelsesdato	1969
Paritet	+

decay mode	Intensitet
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	22%

²³O

mass number	23
neutron number	15
Relative Atomic Mass	23,015696686 ± 0,000130663 Da
g-factor
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	97 ± 8 ms
spin	1/2
nuclear quadrupole moment	0
opdagelsesdato	1970
Paritet	+

decay mode	Intensitet
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	7%

²⁴O

mass number	24
neutron number	16
Relative Atomic Mass	24,019861 ± 0,000177 Da
g-factor	0
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	77,4 ± 4,5 ms
spin	0
nuclear quadrupole moment	0
opdagelsesdato	1970
Paritet	+

decay mode	Intensitet
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	43%

²⁵O

mass number	25
neutron number	17
Relative Atomic Mass	25,029338919 ± 0,000177225 Da
g-factor
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	5,18 ± 0,35 zs
spin	3/2
nuclear quadrupole moment
opdagelsesdato	2008
Paritet	+

decay mode	Intensitet
n (neutron emission)	100%

²⁶O

mass number	26
neutron number	18
Relative Atomic Mass	26,037210155 ± 0,000177081 Da
g-factor	0
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	4,2 ± 3,3 ps
spin	0
nuclear quadrupole moment	0
opdagelsesdato	2012
Paritet	+

decay mode	Intensitet
2n (2-neutron emission)	100%

²⁷O

mass number	27
neutron number	19
Relative Atomic Mass	27,047955 ± 0,000537 Da
g-factor
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid
spin	3/2
nuclear quadrupole moment
opdagelsesdato
Paritet	+

decay mode	Intensitet
n (neutron emission)
2n (2-neutron emission)

²⁸O

mass number	28
neutron number	20
Relative Atomic Mass	28,05591 ± 0,00075 Da
g-factor	0
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid
spin	0
nuclear quadrupole moment	0
opdagelsesdato
Paritet	+

decay mode	Intensitet
2n (2-neutron emission)
β⁻ (β⁻ decay)	0%

historie

opdager eller opfinder	Joseph Priestly, Carl Wilhelm Scheele
fundsted	England/Sweden
opdagelsesdato	1774
etymologi	Greek: oxys and genes, (acid former).
udtale	OK-si-jen (engelsk)

source

Forekomst
Abundance in Earth's crust	461.000 mg/kg
natural abundance (verdenshave)	857.000 mg/L
natural abundance (menneskelige krop)	61 %
natural abundance (Meteoroid)	40 %
natural abundance (Solen)	0,9 %
Abundance in Universe	1 %

Nuclear Screening Constants

1	s	0.3421
2	p	3.5468
2	s	3.5084

Oxygen, Ilt on ChemicalAid

Oxygen, Ilt (O)

Fysisk Egenskab

Kemisk Egenskab

øvrige

Isotopes of Oxygen

11O

12O

13O

14O

15O

16O

17O

18O

19O

20O

21O

22O

23O

24O

25O

26O

27O

28O

historie

source

Nuclear Screening Constants

¹¹O

¹²O

¹³O

¹⁴O

¹⁵O

¹⁶O

¹⁷O

¹⁸O

¹⁹O

²⁰O

²¹O

²²O

²³O

²⁴O

²⁵O

²⁶O

²⁷O

²⁸O