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a colorless odorless inert gaseous element occurring in the earths atmosphere in trace amounts (同)Xe, atomic number 54

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キセノン(希ガス元素;化学記号はXe)

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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2014/08/12 03:35:10」(JST)

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Naturally occurring xenon (Xe) is made of eight stable isotopes and one very long lived isotope. (¹²⁴Xe, ¹²⁶Xe, and ¹³⁴Xe are predicted to undergo double beta decay,^{[citation needed]} but this has never been observed in these isotopes, so they are considered to be stable.)^[1]^{[dead link]}^[2]^{[not in citation given]} Xenon has the second highest number of stable isotopes. Only tin, with 10 stable isotopes, has more.^[3] Beyond these stable forms, there are over 30 unstable isotopes and isomers that have been studied, the longest-lived of which is ¹³⁶Xe which undergoes double beta decay with a half-life of 2.165 ± 0.016(stat) ± 0.059(sys) ×10²¹ years^[4] with the next longest lived being ¹²⁷Xe with a half-life of 36.345 days. Of known isomers, the longest-lived is ^131mXe with a half-life of 11.934 days. ¹²⁹Xe is produced by beta decay of ¹²⁹I (half-life: 16 million years); ^131mXe, ¹³³Xe, ^133mXe, and ¹³⁵Xe are some of the fission products of both ²³⁵U and ²³⁹Pu, and therefore used as indicators of nuclear explosions.

The artificial isotope ¹³⁵Xe is of considerable significance in the operation of nuclear fission reactors. ¹³⁵Xe has a huge cross section for thermal neutrons, 2.65×10⁶ barns, so it acts as a neutron absorber or "poison" that can slow or stop the chain reaction after a period of operation. This was discovered in the earliest nuclear reactors built by the American Manhattan Project for plutonium production. Fortunately the designers had made provisions in the design to increase the reactor's reactivity (the number of neutrons per fission that go on to fission other atoms of nuclear fuel).

Relatively high concentrations of radioactive xenon isotopes are also found emanating from nuclear reactors due to the release of this fission gas from cracked fuel rods or fissioning of uranium in cooling water. The concentrations of these isotopes are still usually low compared to the naturally occurring radioactive noble gas ²²²Rn.

Because xenon is a tracer for two parent isotopes, Xe isotope ratios in meteorites are a powerful tool for studying the formation of the solar system. The I-Xe method of dating gives the time elapsed between nucleosynthesis and the condensation of a solid object from the solar nebula (Xenon being a gas, only that part of it which formed after condensation will be present inside the object). Xenon isotopes are also a powerful tool for understanding terrestrial differentiation. Excess ¹²⁹Xe found in carbon dioxide well gases from New Mexico was believed to be from the decay of mantle-derived gases soon after Earth's formation.^[5]
Standard atomic mass: 131.293(6) u

All other isotopes have half-lives less than 12 days, most less than 20 hours. The shortest-lived isotope is ¹⁴⁸Xe with a half-life of 408 ns. Its 41 isotopes have mass numbers ranging from 108 to 148.

¹⁰⁸Xe (disc. 2011) is the second heaviest nuclide with equal numbers of protons and neutrons, after ¹¹²Ba.

Xenon-133

Isotopes of xenon Full table
General
Name, symbol	Isotopes of xenon,¹³³Xe
Neutrons	79
Protons	54
Nuclide data
Natural abundance	syn
Half-life	5.243 d (1)
Decay products	¹³³Cs
Isotope mass	132.9059107 u
Spin	3/2+
Decay mode	Decay energy
Beta⁻	0.427 MeV

Xenon-133 (sold as a drug under the brand name Xeneisol, ATC code V09EX03) is an isotope of xenon. It is a radionuclide that was inhaled to assess pulmonary function, and to image the lungs,.^[6] It is also used to image blood flow, particularly in the brain.^[7] ¹³³Xe is also an important fission product.^{[citation needed]}

Xenon-135

Xenon-135 is a radioactive isotope of xenon, produced as a fission product of uranium. It has a half-life of about 9.2 hours and is the most powerful known neutron-absorbing nuclear poison (having a neutron absorption cross-section of 2 million barns^[8]). The overall yield of xenon-135 from fission is 6.3%, though most of this results from the radioactive decay of fission-produced tellurium-135 and iodine-135. Xe-135 exerts a significant effect on nuclear reactor operation (xenon pit).

Xenon-136

Xenon-136 is an isotope of xenon that undergoes double beta decay to Barium-136 with a very long half life of 2.11×10²¹ years.

Table

nuclide symbol	Z(p)	N(n)	isotopic mass (u)	half-life	decay mode(s)^[9]^{[n 1]}	daughter isotope(s)^{[n 2]}	nuclear spin	representative isotopic composition (mole fraction)	range of natural variation (mole fraction)
nuclide symbol	excitation energy			half-life	decay mode(s)^[9]^{[n 1]}	daughter isotope(s)^{[n 2]}	nuclear spin	representative isotopic composition (mole fraction)	range of natural variation (mole fraction)
¹¹⁰Xe	54	56	109.94428(14)	310(190) ms [105(+35-25) ms]	β⁺	¹¹⁰I	0+
¹¹⁰Xe	54	56	109.94428(14)	310(190) ms [105(+35-25) ms]	α	¹⁰⁶Te	0+
¹¹¹Xe	54	57	110.94160(33)#	740(200) ms	β⁺ (90%)	¹¹¹I	5/2+#
¹¹¹Xe	54	57	110.94160(33)#	740(200) ms	α (10%)	¹⁰⁷Te	5/2+#
¹¹²Xe	54	58	111.93562(11)	2.7(8) s	β⁺ (99.1%)	¹¹²I	0+
¹¹²Xe	54	58	111.93562(11)	2.7(8) s	α (.9%)	¹⁰⁸Te	0+
¹¹³Xe	54	59	112.93334(9)	2.74(8) s	β⁺ (92.98%)	¹¹³I	(5/2+)#
					β⁺, p (7%)	¹¹²Te
					α (.011%)	¹⁰⁹Te
					β⁺, α (.007%)	¹⁰⁹Sb
¹¹⁴Xe	54	60	113.927980(12)	10.0(4) s	β⁺	¹¹⁴I	0+
¹¹⁵Xe	54	61	114.926294(13)	18(4) s	β⁺ (99.65%)	¹¹⁵I	(5/2+)
					β⁺, p (.34%)	¹¹⁴Te
					β⁺, α (3×10⁻⁴%)	¹¹¹Sb
¹¹⁶Xe	54	62	115.921581(14)	59(2) s	β⁺	¹¹⁶I	0+
¹¹⁷Xe	54	63	116.920359(11)	61(2) s	β⁺ (99.99%)	¹¹⁷I	5/2(+)
¹¹⁷Xe	54	63	116.920359(11)	61(2) s	β⁺, p (.0029%)	¹¹⁶Te	5/2(+)
¹¹⁸Xe	54	64	117.916179(11)	3.8(9) min	β⁺	¹¹⁸I	0+
¹¹⁹Xe	54	65	118.915411(11)	5.8(3) min	β⁺	¹¹⁹I	5/2(+)
¹²⁰Xe	54	66	119.911784(13)	40(1) min	β⁺	¹²⁰I	0+
¹²¹Xe	54	67	120.911462(12)	40.1(20) min	β⁺	¹²¹I	(5/2+)
¹²²Xe	54	68	121.908368(12)	20.1(1) h	β⁺	¹²²I	0+
¹²³Xe	54	69	122.908482(10)	2.08(2) h	EC	¹²³I	1/2+
^123mXe	185.18(22) keV			5.49(26) µs			7/2(-)
¹²⁴Xe	54	70	123.905893(2)	Observationally Stable^{[n 3]}			0+	9.52(3)×10⁻⁴
¹²⁵Xe	54	71	124.9063955(20)	16.9(2) h	β⁺	¹²⁵I	1/2(+)
^125m1Xe	252.60(14) keV			56.9(9) s	IT	¹²⁵Xe	9/2(-)
^125m2Xe	295.86(15) keV			0.14(3) µs			7/2(+)
¹²⁶Xe	54	72	125.904274(7)	Observationally Stable^{[n 4]}			0+	8.90(2)×10⁻⁴
¹²⁷Xe	54	73	126.905184(4)	36.345(3) d	EC	¹²⁷I	1/2+
^127mXe	297.10(8) keV			69.2(9) s	IT	¹²⁷Xe	9/2-
¹²⁸Xe	54	74	127.9035313(15)	Stable^{[n 5]}			0+	0.019102(8)
¹²⁹Xe^{[n 6]}	54	75	128.9047794(8)	Stable^{[n 5]}			1/2+	0.264006(82)
^129mXe	236.14(3) keV			8.88(2) d	IT	¹²⁹Xe	11/2-
¹³⁰Xe	54	76	129.9035080(8)	Stable^{[n 5]}			0+	0.040710(13)
¹³¹Xe^{[n 7]}	54	77	130.9050824(10)	Stable^{[n 5]}			3/2+	0.212324(30)
^131mXe	163.930(8) keV			11.934(21) d	IT	¹³¹Xe	11/2-
¹³²Xe^{[n 7]}	54	78	131.9041535(10)	Stable^{[n 5]}			0+	0.269086(33)
^132mXe	2752.27(17) keV			8.39(11) ms	IT	¹³²Xe	(10+)
¹³³Xe^{[n 7]}^{[n 8]}	54	79	132.9059107(26)	5.2475(5) d	β^-	¹³³Cs	3/2+
^133mXe	233.221(18) keV			2.19(1) d	IT	¹³³Xe	11/2-
¹³⁴Xe^{[n 7]}	54	80	133.9053945(9)	Observationally Stable ^{[n 9]}			0+	0.104357(21)
^134m1Xe	1965.5(5) keV			290(17) ms	IT	¹³⁴Xe	7-
^134m2Xe	3025.2(15) keV			5(1) µs			(10+)
¹³⁵Xe^{[n 10]}	54	81	134.907227(5)	9.14(2) h	β^-	¹³⁵Cs	3/2+
^135mXe	526.551(13) keV			15.29(5) min	IT (99.99%)	¹³⁵Xe	11/2-
^135mXe	526.551(13) keV			15.29(5) min	β^- (.004%)	¹³⁵Cs	11/2-
¹³⁶Xe^{[n 11]}	54	82	135.907219(8)	2.165(0.016 (stat), 0.059 (sys))×10²¹ yr^[4]	β^-β^-	¹³⁶Ba	0+	0.088573(44)
^136mXe	1891.703(14) keV			2.95(9) µs			6+
¹³⁷Xe	54	83	136.911562(8)	3.818(13) min	β^-	¹³⁷Cs	7/2-
¹³⁸Xe	54	84	137.91395(5)	14.08(8) min	β^-	¹³⁸Cs	0+
¹³⁹Xe	54	85	138.918793(22)	39.68(14) s	β^-	¹³⁹Cs	3/2-
¹⁴⁰Xe	54	86	139.92164(7)	13.60(10) s	β^-	¹⁴⁰Cs	0+
¹⁴¹Xe	54	87	140.92665(10)	1.73(1) s	β^- (99.45%)	¹⁴¹Cs	5/2(-#)
¹⁴¹Xe	54	87	140.92665(10)	1.73(1) s	β^-, n (.043%)	¹⁴⁰Cs	5/2(-#)
¹⁴²Xe	54	88	141.92971(11)	1.22(2) s	β^- (99.59%)	¹⁴²Cs	0+
¹⁴²Xe	54	88	141.92971(11)	1.22(2) s	β^-, n (.41%)	¹⁴¹Cs	0+
¹⁴³Xe	54	89	142.93511(21)#	0.511(6) s	β^-	¹⁴³Cs	5/2-
¹⁴⁴Xe	54	90	143.93851(32)#	0.388(7) s	β^-	¹⁴⁴Cs	0+
¹⁴⁴Xe	54	90	143.93851(32)#	0.388(7) s	β^-, n	¹⁴³Cs	0+
¹⁴⁵Xe	54	91	144.94407(32)#	188(4) ms	β^-	¹⁴⁵Cs	(3/2-)#
¹⁴⁶Xe	54	92	145.94775(43)#	146(6) ms	β^-	¹⁴⁶Cs	0+
¹⁴⁷Xe	54	93	146.95356(43)#	130(80) ms [0.10(+10-5) s]	β^-	¹⁴⁷Cs	3/2-#
¹⁴⁷Xe	54	93	146.95356(43)#	130(80) ms [0.10(+10-5) s]	β^-, n	¹⁴⁶Cs	3/2-#

^ Abbreviations:
EC: Electron capture
IT: Isomeric transition
^ Bold for stable isotopes
^ Suspected of undergoing β⁺β⁺ decay to ¹²⁴Te with a half-life over 48×10¹⁵ years
^ Suspected of undergoing β⁺β⁺ decay to ¹²⁶Te
^ ^a ^b ^c ^d ^e Theoretically capable of spontaneous fission
^ Used in a method of radiodating groundwater and to infer certain events in the Solar System's history
^ ^a ^b ^c ^d Fission product
^ Has medical uses
^ Suspected of undergoing β^-β^- decay to ¹³⁴Ba with a half-life over 11×10¹⁵ years
^ Most powerful known neutron absorber, produced in nuclear power plants as a decay product of ¹³⁵I, itself a decay product of ¹³⁵Te, a fission product. Normally absorbs neutrons in the high neutron flux environments to become ¹³⁶Xe; see iodine pit for more information
^ Primordial radionuclide

Notes

The isotopic composition refers to that in air.
Geologically exceptional samples are known in which the isotopic composition lies outside the reported range. The uncertainty in the atomic mass may exceed the stated value for such specimens.
Commercially available materials may have been subjected to an undisclosed or inadvertent isotopic fractionation^{[disambiguation needed]}. Substantial deviations from the given mass and composition can occur.
Values marked # are not purely derived from experimental data, but at least partly from systematic trends. Spins with weak assignment arguments are enclosed in parentheses.
Uncertainties are given in concise form in parentheses after the corresponding last digits. Uncertainty values denote one standard deviation, except isotopic composition and standard atomic mass from IUPAC which use expanded uncertainties.

References

^ Status of ββ-decay in Xenon, Roland Lüscher, accessed on line September 17, 2007.
^ Average (Recommended) Half-Life Values for Two-Neutrino Double-Beta Decay, A. S. Barabash, Czechoslovak Journal of Physics 52, #4 (April 2002), pp. 567–573.
^ Rajam, J. B. (1960). Atomic Physics (7th ed.). Delhi: S. Chand and Co. ISBN 81-219-1809-X.
^ ^a ^b Albert, J. B.; Auger, M.; Auty, D. J.; Barbeau, P. S.; Beauchamp, E.; Beck, D.; Belov, V.; Benitez-Medina, C.; Bonatt, J.; Breidenbach, M.; Brunner, T.; Burenkov, A.; Cao, G. F.; Chambers, C.; Chaves, J.; Cleveland, B.; Cook, S.; Craycraft, A.; Daniels, T.; Danilov, M.; Daugherty, S. J.; Davis, C. G.; Davis, J.; Devoe, R.; Delaquis, S.; Dobi, A.; Dolgolenko, A.; Dolinski, M. J.; Dunford, M. et al. (2014). "Improved measurement of the 2νββ half-life of ¹³⁶Xe with the EXO-200 detector". Physical Review C 89. doi:10.1103/PhysRevC.89.015502. edit
^ Boulos, M.S.; Manuel, O.K. (1971). "The xenon record of extinct radioactivities in the Earth.". Science 174 (4016): 1334–1336. Bibcode:1971Sci...174.1334B. doi:10.1126/science.174.4016.1334. PMID 17801897.
^ Jones, R. L.; Sproule, B. J.; Overton, T. R. (1978). "Measurement of regional ventilation and lung perfusion with Xe-133". Journal of nuclear medicine 19 (10): 1187–1188. PMID 722337. edit
^ Hoshi, H.; Jinnouchi, S.; Watanabe, K.; Onishi, T.; Uwada, O.; Nakano, S.; Kinoshita, K. (1987). "Cerebral blood flow imaging in patients with brain tumor and arterio-venous malformation using Tc-99m hexamethylpropylene-amine oxime--a comparison with Xe-133 and IMP". Kaku igaku. the Japanese journal of nuclear medicine 24 (11): 1617–1623. PMID 3502279. edit
^ Chart of the Nuclides 13th Edition
^ http://www.nucleonica.net/unc.aspx

Isotope masses from Ame2003 Atomic Mass Evaluation by G. Audi, A.H. Wapstra, C. Thibault, J. Blachot and O. Bersillon in Nuclear Physics A729 (2003).
Isotopic compositions and standard atomic masses from:
- J. R. de Laeter, J. K. Böhlke, P. De Bièvre, H. Hidaka, H. S. Peiser, K. J. R. Rosman and P. D. P. Taylor (2003). "Atomic weights of the elements. Review 2000 (IUPAC Technical Report)". Pure and Applied Chemistry 75 (6): 683–800. doi:10.1351/pac200375060683.
- M. E. Wieser (2006). "Atomic weights of the elements 2005 (IUPAC Technical Report)". Pure and Applied Chemistry 78 (11): 2051–2066. doi:10.1351/pac200678112051. Lay summary.
Half-life, spin, and isomer data selected from the following sources. See editing notes on this article's talk page.
- G. Audi, A. H. Wapstra, C. Thibault, J. Blachot and O. Bersillon (2003). "The NUBASE evaluation of nuclear and decay properties". Nuclear Physics A 729: 3–128. Bibcode:2003NuPhA.729....3A. doi:10.1016/j.nuclphysa.2003.11.001.
- National Nuclear Data Center. "NuDat 2.1 database". Brookhaven National Laboratory. Retrieved September 2005.
- N. E. Holden (2004). "Table of the Isotopes". In D. R. Lide. CRC Handbook of Chemistry and Physics (85th ed.). CRC Press. Section 11. ISBN 978-0-8493-0485-9.

Isotopes of iodine	Isotopes of xenon	Isotopes of caesium
Table of nuclides

English Journal

Nonalcoholic fatty liver disease: Noninvasive methods of diagnosing hepatic steatosis.

AlShaalan R, Aljiffry M, Al-Busafi S, Metrakos P, Hassanain M1.
Saudi journal of gastroenterology : official journal of the Saudi Gastroenterology Association.Saudi J Gastroenterol.2015 Mar-Apr;21(2):64-70. doi: 10.4103/1319-3767.153812.
Hepatic steatosis is the buildup of lipids within hepatocytes. It is the simplest stage in nonalcoholic fatty liver disease (NAFLD). It occurs in approximately 30% of the general population and as much as 90% of the obese population in the United States. It may progress to nonalcoholic steatohepatit
PMID 25843191

Prognostic Value of Non-Invasive Fibrosis and Steatosis Tools, Hepatic Venous Pressure Gradient (HVPG) and Histology in Nonalcoholic Steatohepatitis.

Sebastiani G1, Alshaalan R1, Wong P1, Rubino M1, Salman A2, Metrakos P2, Deschenes M1, Ghali P1.
PloS one.PLoS One.2015 Jun 17;10(6):e0128774. doi: 10.1371/journal.pone.0128774. eCollection 2015.
BACKGROUND & AIMS: Non-invasive diagnostic methods for liver fibrosis predict clinical outcomes in viral hepatitis and nonalcoholic fatty liver disease (NAFLD). We specifically evaluated prognostic value of non-invasive fibrosis methods in nonalcoholic steatohepatitis (NASH) against hepatic veno
PMID 26083565

How "lucky" we are that the Fukushima disaster occurred in early spring: predictions on the contamination levels from various fission products released from the accident and updates on the risk assessment for solid and thyroid cancers.

Evangeliou N1, Balkanski Y2, Cozic A2, Møller AP3.
The Science of the total environment.Sci Total Environ.2014 Dec 1;500-501:155-72. doi: 10.1016/j.scitotenv.2014.08.102. Epub 2014 Sep 15.
The present paper studies how a random event (earthquake) and the subsequent disaster in Japan affect transport and deposition of fallout and the resulting health consequences. Therefore, except for the original accident in March 2011, three additional scenarios are assessed assuming that the same r
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Japanese Journal

都内の放射線量の推移とモニタリングポスト異常値対応

小西浩之,冨士栄聡子,生嶋清美 [他]
東京都健康安全研究センター研究年報 (64), 173-179, 2013
NAID 40020194073

Xenon-133,Kr-81m,Tc-99m-Techneガスによる肺SPECTおよびSPECT/CT融合画像(<ミニ特集>核医学による最新呼吸器診断学)

菅一能
気管支学 : 日本気管支研究会雑誌 29(3), 149-160, 2007-05-25
NAID 110006368555

超音波ネブライザーにおける逆流防止弁の有効性について

持木茂樹,大木幹文,山口宗太,大久保はるか,大越俊夫
日本鼻科学会会誌 46(1), 11-17, 2007-04-01
… Each subject inhaled through the nose for 2 seconds and exhaled through the mouth for 3 seconds, and the total expired gas was collected in an expiration bag (Xenon-133VSS). …
NAID 10019920695

★リンクテーブル★

リンク元	「キセノン133」
関連記事	「xeno」「xenon」

「キセノン133」

　　[★]

英: xenon 133, 133Xe, xenon-133
商: キセノン(133Xe)、キセノン-133、ジーナイガス-Xe 133、ゼノンコールド

「xeno」

　　[★]

異物性、異物

関: foreign body、foreign substance

「xenon」

　　[★]

キセノン

関: Xe

[10] Abbreviations:
EC: Electron capture
IT: Isomeric transition

[11] Bold for stable isotopes

[12] Suspected of undergoing β⁺β⁺ decay to ¹²⁴Te with a half-life over 48×10¹⁵ years

[13] Suspected of undergoing β⁺β⁺ decay to ¹²⁶Te

[SF-14] Theoretically capable of spontaneous fission

[15] Used in a method of radiodating groundwater and to infer certain events in the Solar System's history

[FP-16] Fission product

[17] Has medical uses

[18] Suspected of undergoing β^-β^- decay to ¹³⁴Ba with a half-life over 11×10¹⁵ years

[19] Most powerful known neutron absorber, produced in nuclear power plants as a decay product of ¹³⁵I, itself a decay product of ¹³⁵Te, a fission product. Normally absorbs neutrons in the high neutron flux environments to become ¹³⁶Xe; see iodine pit for more information

[PN-20] Primordial radionuclide

[1] Status of ββ-decay in Xenon, Roland Lüscher, accessed on line September 17, 2007.

[2] Average (Recommended) Half-Life Values for Two-Neutrino Double-Beta Decay, A. S. Barabash, Czechoslovak Journal of Physics 52, #4 (April 2002), pp. 567–573.

[3] Rajam, J. B. (1960). Atomic Physics (7th ed.). Delhi: S. Chand and Co. ISBN 81-219-1809-X.

[Albert2013-4] Albert, J. B.; Auger, M.; Auty, D. J.; Barbeau, P. S.; Beauchamp, E.; Beck, D.; Belov, V.; Benitez-Medina, C.; Bonatt, J.; Breidenbach, M.; Brunner, T.; Burenkov, A.; Cao, G. F.; Chambers, C.; Chaves, J.; Cleveland, B.; Cook, S.; Craycraft, A.; Daniels, T.; Danilov, M.; Daugherty, S. J.; Davis, C. G.; Davis, J.; Devoe, R.; Delaquis, S.; Dobi, A.; Dolgolenko, A.; Dolinski, M. J.; Dunford, M. et al. (2014). "Improved measurement of the 2νββ half-life of ¹³⁶Xe with the EXO-200 detector". Physical Review C 89. doi:10.1103/PhysRevC.89.015502. edit

[5] Boulos, M.S.; Manuel, O.K. (1971). "The xenon record of extinct radioactivities in the Earth.". Science 174 (4016): 1334–1336. Bibcode:1971Sci...174.1334B. doi:10.1126/science.174.4016.1334. PMID 17801897.

[6] Jones, R. L.; Sproule, B. J.; Overton, T. R. (1978). "Measurement of regional ventilation and lung perfusion with Xe-133". Journal of nuclear medicine 19 (10): 1187–1188. PMID 722337. edit

[7] Hoshi, H.; Jinnouchi, S.; Watanabe, K.; Onishi, T.; Uwada, O.; Nakano, S.; Kinoshita, K. (1987). "Cerebral blood flow imaging in patients with brain tumor and arterio-venous malformation using Tc-99m hexamethylpropylene-amine oxime--a comparison with Xe-133 and IMP". Kaku igaku. the Japanese journal of nuclear medicine 24 (11): 1617–1623. PMID 3502279. edit

[8] Chart of the Nuclides 13th Edition

[9] ttp://www.nucleonica.net/unc.aspx

v t e Isotopes of the chemical elements
1 H																	2 He
3 Li	4 Be											5 B	6 C	7 N	8 O	9 F	10 Ne
11 Na	12 Mg											13 Al	14 Si	15 P	16 S	17 Cl	18 Ar
19 K	20 Ca	21 Sc	22 Ti	23 V	24 Cr	25 Mn	26 Fe	27 Co	28 Ni	29 Cu	30 Zn	31 Ga	32 Ge	33 As	34 Se	35 Br	36 Kr
37 Rb	38 Sr	39 Y	40 Zr	41 Nb	42 Mo	43 Tc	44 Ru	45 Rh	46 Pd	47 Ag	48 Cd	49 In	50 Sn	51 Sb	52 Te	53 I	54 Xe
55 Cs	56 Ba		72 Hf	73 Ta	74 W	75 Re	76 Os	77 Ir	78 Pt	79 Au	80 Hg	81 Tl	82 Pb	83 Bi	84 Po	85 At	86 Rn
87 Fr	88 Ra		104 Rf	105 Db	106 Sg	107 Bh	108 Hs	109 Mt	110 Ds	111 Rg	112 Cn	113 Uut	114 Fl	115 Uup	116 Lv	117 Uus	118 Uuo

		57 La	58 Ce	59 Pr	60 Nd	61 Pm	62 Sm	63 Eu	64 Gd	65 Tb	66 Dy	67 Ho	68 Er	69 Tm	70 Yb	71 Lu
		89 Ac	90 Th	91 Pa	92 U	93 Np	94 Pu	95 Am	96 Cm	97 Bk	98 Cf	99 Es	100 Fm	101 Md	102 No	103 Lr
Table of nuclides Categories: Isotopes Tables of nuclides Metastable isotopes Isotopes by element

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xenon-133