Oksigen (O)

chemical element, symbol O and atomic number 8

Atomic Number	8
Atomic Weight	15.999
Nombor jisim	16

Group	16
Period	2
Block	p

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

Sifat Fizikal

Jejari Atom	60 pm 171 pm
molar volume	14 cm³/mol
Jejari kovalen	63 pm 57 pm 53 pm 65 pm 66 pm
Metallic Radius
ionic radius	135 pm 136 pm 138 pm 140 pm 142 pm
Crystal Radius	121 pm 122 pm 124 pm 126 pm 128 pm
Jejari van der Waals	155 pm 152 pm 340.46 pm 152 pm 182 pm 158 pm 350 pm
ketumpatan	0.001308 g/cm³

Sifat Kimia

{ERROR}

tenaga

proton affinity	485.2 kJ/mol
Pertalian elektron	1.4611135 eV/particle
ionization energy	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

Entalpi pengewapan
entalpi pelakuran
standard enthalpy of formation	249.229 kJ/mol
Elektron

Petala elektron	2, 6

Elektron valens	6 ⓘ

tatarajah elektron	[He] 2s² 2p⁴ⓘ 1s² 2s² 2p⁴

Keadaan pengoksidaan	-2, -1, 0, 1, 2
Keelektronegatifan	21.36 eV/particle 0.304575 3.44
Electrophilicity Index	2.337978174823841 eV/particle
keadaan jirim asas

fasa jirim
gaseous state of matter	Diatomic
Boiling Point	90.188 K
Melting Point	54.36 K
critical pressure	5.043 MPa
critical temperature	154.581 K
triple point	54.3584 K 0.1463 kPa
rupa
warna	Black #f00000 #ff0d0d #f32e42
rupa
indeks biasan	1.000271
sifat bahan
Thermal Conductivity	0.027 W/(m K)
Pengembangan terma
molar heat capacity	29.378 J/(mol K)
Specific Heat Capacity	0.918 J/(g⋅K)
heat capacity ratio	7/5
electrical properties
type
Kekonduksian elektrik
Kerintangan dan kekonduksian elektrik
Kesuperkonduksian
kemagnetan
type	paramagnetic
magnetic susceptibility (Mass)	0.000001335 m³/Kg
magnetic susceptibility (Molar)	0.0000000427184 m³/mol
magnetic susceptibility (Volume)	0.00000190772
magnetic ordering
Suhu Curie
Néel temperature
struktur
Crystal Structure	{ERROR}
lattice constant	6.83 Å
Lattice Angles	π/2, 2.313085, π/2
mechanical property
hardness
Modulus pukal
shear modulus
Young's modulus
Nisbah Poisson
Kelajuan bunyi	317.5 m/s
pengelasan
Category	Actinides, Nonmetals
CAS Group	VIB
IUPAC Group	VIA
Glawe Number	97
Mendeleev Number	99
Pettifor Number	101
Geochemical Class	major
Goldschmidt classification	litophile

other

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
Nombor kuantum	3P2
space group	12 (C12/m1)

Isotopes of Oxygen

Stable Isotopes	3
Unstable Isotopes	15
Natural Isotopes	3

¹¹O

Nombor jisim	11
nombor neutron	3
Jisim Atom Relatif	11.051249828 ± 0.000064453 Da
g-factor
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	198 ± 12 ys
Spin	3/2
nuclear quadrupole moment
tarikh penemuan	2019
parity	-

decay mode	Keamatan (fizik)
2p (2-proton emission)	100%

¹²O

Nombor jisim	12
nombor neutron	4
Jisim Atom Relatif	12.034367726 ± 0.000012882 Da
g-factor	0
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	8.9 ± 3.3 zs
Spin	0
nuclear quadrupole moment	0
tarikh penemuan	1978
parity	+

decay mode	Keamatan (fizik)
2p (2-proton emission)	100%

¹³O

Nombor jisim	13
nombor neutron	5
Jisim Atom Relatif	13.024815435 ± 0.000010226 Da
g-factor	0.92613333333333 ± 0.0002
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	8.58 ± 0.05 ms
Spin	3/2
nuclear quadrupole moment	0.0111 ± 0.0008
tarikh penemuan	1963
parity	-

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

¹⁴O

Nombor jisim	14
nombor neutron	6
Jisim Atom Relatif	14.008596706 ± 0.000000027 Da
g-factor	0
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	70.621 ± 0.011 s
Spin	0
nuclear quadrupole moment	0
tarikh penemuan	1949
parity	+

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

¹⁵O

Nombor jisim	15
nombor neutron	7
Jisim Atom Relatif	15.003065636 ± 0.000000526 Da
g-factor	1.43816 ± 0.00024
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	122.266 ± 0.043 s
Spin	1/2
nuclear quadrupole moment	0
tarikh penemuan	1934
parity	-

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

¹⁶O

Nombor jisim	16
nombor neutron	8
Jisim Atom Relatif	15.99491461926 ± 0.00000000032 Da
g-factor	0
natural abundance	99.757 ± 0.011
Reputan radioaktif	Isotop stabil
setengah hayat	Not Radioactive ☢️
Spin	0
nuclear quadrupole moment	0
tarikh penemuan	1919
parity	+

¹⁷O

Nombor jisim	17
nombor neutron	9
Jisim Atom Relatif	16.99913175595 ± 0.00000000069 Da
g-factor	-0.7574172 ± 0.000004
natural abundance	0.03835 ± 0.00096
Reputan radioaktif	Isotop stabil
setengah hayat	Not Radioactive ☢️
Spin	5/2
nuclear quadrupole moment
tarikh penemuan	1925
parity	+

¹⁸O

Nombor jisim	18
nombor neutron	10
Jisim Atom Relatif	17.99915961214 ± 0.00000000069 Da
g-factor	0
natural abundance	0.2045 ± 0.0102
Reputan radioaktif	Isotop stabil
setengah hayat	Not Radioactive ☢️
Spin	0
nuclear quadrupole moment	0
tarikh penemuan	1929
parity	+

¹⁹O

Nombor jisim	19
nombor neutron	11
Jisim Atom Relatif	19.003577969 ± 0.00000283 Da
g-factor	0.612952 ± 0.000028
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	26.47 ± 0.006 s
Spin	5/2
nuclear quadrupole moment	0.00362 ± 0.00013
tarikh penemuan	1936
parity	+

decay mode	Keamatan (fizik)
β⁻ (β⁻ decay)	100%

²⁰O

Nombor jisim	20
nombor neutron	12
Jisim Atom Relatif	20.004075357 ± 0.00000095 Da
g-factor	0
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	13.51 ± 0.05 s
Spin	0
nuclear quadrupole moment	0
tarikh penemuan	1959
parity	+

decay mode	Keamatan (fizik)
β⁻ (β⁻ decay)	100%

²¹O

Nombor jisim	21
nombor neutron	13
Jisim Atom Relatif	21.008654948 ± 0.000012882 Da
g-factor
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	3.42 ± 0.1 s
Spin	5/2
nuclear quadrupole moment
tarikh penemuan	1968
parity	+

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

²²O

Nombor jisim	22
nombor neutron	14
Jisim Atom Relatif	22.009965744 ± 0.000061107 Da
g-factor	0
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	2.25 ± 0.09 s
Spin	0
nuclear quadrupole moment	0
tarikh penemuan	1969
parity	+

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

²³O

Nombor jisim	23
nombor neutron	15
Jisim Atom Relatif	23.015696686 ± 0.000130663 Da
g-factor
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	97 ± 8 ms
Spin	1/2
nuclear quadrupole moment	0
tarikh penemuan	1970
parity	+

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

²⁴O

Nombor jisim	24
nombor neutron	16
Jisim Atom Relatif	24.019861 ± 0.000177 Da
g-factor	0
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	77.4 ± 4.5 ms
Spin	0
nuclear quadrupole moment	0
tarikh penemuan	1970
parity	+

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

²⁵O

Nombor jisim	25
nombor neutron	17
Jisim Atom Relatif	25.029338919 ± 0.000177225 Da
g-factor
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	5.18 ± 0.35 zs
Spin	3/2
nuclear quadrupole moment
tarikh penemuan	2008
parity	+

decay mode	Keamatan (fizik)
n (neutron emission)	100%

²⁶O

Nombor jisim	26
nombor neutron	18
Jisim Atom Relatif	26.037210155 ± 0.000177081 Da
g-factor	0
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	4.2 ± 3.3 ps
Spin	0
nuclear quadrupole moment	0
tarikh penemuan	2012
parity	+

decay mode	Keamatan (fizik)
2n (2-neutron emission)	100%

²⁷O

Nombor jisim	27
nombor neutron	19
Jisim Atom Relatif	27.047955 ± 0.000537 Da
g-factor
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat
Spin	3/2
nuclear quadrupole moment
tarikh penemuan
parity	+

decay mode	Keamatan (fizik)
n (neutron emission)
2n (2-neutron emission)

²⁸O

Nombor jisim	28
nombor neutron	20
Jisim Atom Relatif	28.05591 ± 0.00075 Da
g-factor	0
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat
Spin	0
nuclear quadrupole moment	0
tarikh penemuan
parity	+

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

sejarah

penemu atau pereka	Joseph Priestly, Carl Wilhelm Scheele
tempat penemuan	England/Sweden
tarikh penemuan	1774
Etimologi	Greek: oxys and genes, (acid former).
sebutan	OK-si-jen (Inggeris)

sumber

Abundance
Abundance in Earth's crust	461,000 mg/kg
natural abundance (lautan)	857,000 mg/L
natural abundance (Tubuh manusia)	61 %
natural abundance (Meteoroid)	40 %
natural abundance (Matahari)	0.9 %
Abundance in Universe	1 %

Nuclear Screening Constants

1	s	0.3421
2	p	3.5468
2	s	3.5084

Oksigen on ChemicalAid

Oksigen (O)

Sifat Fizikal

Sifat Kimia

other

Isotopes of Oxygen

11O

12O

13O

14O

15O

16O

17O

18O

19O

20O

21O

22O

23O

24O

25O

26O

27O

28O

sejarah

sumber

Nuclear Screening Constants

¹¹O

¹²O

¹³O

¹⁴O

¹⁵O

¹⁶O

¹⁷O

¹⁸O

¹⁹O

²⁰O

²¹O

²²O

²³O

²⁴O

²⁵O

²⁶O

²⁷O

²⁸O