镱的同位素

**主要的镱同位素**
标准原子质量（英语：Standard atomic weight） (Ar, 标准)	173.045(10);
←Tm（69）	Lu（71）→
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镱（原子量：173.045(10)）的同位素，其中有7个同位素是在观测上稳定的。

图表[编辑]

符号	Z（ p ）	N（ n ）	同位素质量（u）	半衰期^{[n 1]}	衰变方式^[2]^{[n 2]}	衰变产物^{[n 3]}	原子核自旋	相对丰度（莫耳分率）	相对丰度的变化量（莫耳分率）
符号	激发能量			半衰期^{[n 1]}	衰变方式^[2]^{[n 2]}	衰变产物^{[n 3]}	原子核自旋	相对丰度（莫耳分率）	相对丰度的变化量（莫耳分率）
¹⁴⁸Yb	70	78	147.96742(64)#	250# ms	β⁺	¹⁴⁸Tm	0+
¹⁴⁹Yb	70	79	148.96404(54)#	0.7(2) s	β⁺	¹⁴⁹Tm	(1/2+,3/2+)
¹⁵⁰Yb	70	80	149.95842(43)#	700# ms [>200 ns]	β⁺	¹⁵⁰Tm	0+
¹⁵¹Yb	70	81	150.95540(32)	1.6(5) s	β⁺	¹⁵¹Tm	(1/2+)
¹⁵¹Yb	70	81	150.95540(32)	1.6(5) s	β⁺, p （不常见）	¹⁵⁰Er	(1/2+)
^151m1Yb	750(100)# keV			1.6(5) s	β⁺	¹⁵¹Tm	(11/2-)
^151m1Yb	750(100)# keV			1.6(5) s	β⁺, p （不常见）	¹⁵⁰Er	(11/2-)
^151m2Yb	1790(500)# keV			2.6(7) µs			19/2-#
^151m3Yb	2450(500)# keV			20(1) µs			27/2-#
¹⁵²Yb	70	82	151.95029(22)	3.04(6) s	β⁺	¹⁵²Tm	0+
¹⁵²Yb	70	82	151.95029(22)	3.04(6) s	β⁺, p （不常见）	¹⁵¹Er	0+
¹⁵³Yb	70	83	152.94948(21)#	4.2(2) s	α (50%)	¹⁴⁹Er	7/2-#
					β⁺ (50%)	¹⁵³Tm
					β⁺, p (.008%)	¹⁵²Er
^153mYb	2700(100) keV			15(1) µs			(27/2-)
¹⁵⁴Yb	70	84	153.946394(19)	0.409(2) s	α (92.8%)	¹⁵⁰Er	0+
¹⁵⁴Yb	70	84	153.946394(19)	0.409(2) s	β⁺ (7.119%)	¹⁵⁴Tm	0+
¹⁵⁵Yb	70	85	154.945782(18)	1.793(19) s	α (89%)	¹⁵¹Er	(7/2-)
¹⁵⁵Yb	70	85	154.945782(18)	1.793(19) s	β⁺ (11%)	¹⁵⁵Tm	(7/2-)
¹⁵⁶Yb	70	86	155.942818(12)	26.1(7) s	β⁺ (90%)	¹⁵⁶Tm	0+
¹⁵⁶Yb	70	86	155.942818(12)	26.1(7) s	α (10%)	¹⁵²Er	0+
¹⁵⁷Yb	70	87	156.942628(11)	38.6(10) s	β⁺ (99.5%)	¹⁵⁷Tm	7/2-
¹⁵⁷Yb	70	87	156.942628(11)	38.6(10) s	α (.5%)	¹⁵³Er	7/2-
¹⁵⁸Yb	70	88	157.939866(9)	1.49(13) min	β⁺ (99.99%)	¹⁵⁸Tm	0+
¹⁵⁸Yb	70	88	157.939866(9)	1.49(13) min	α (.0021%)	¹⁵⁴Er	0+
¹⁵⁹Yb	70	89	158.94005(2)	1.67(9) min	β⁺	¹⁵⁹Tm	5/2(-)
¹⁶⁰Yb	70	90	159.937552(18)	4.8(2) min	β⁺	¹⁶⁰Tm	0+
¹⁶¹Yb	70	91	160.937902(17)	4.2(2) min	β⁺	¹⁶¹Tm	3/2-
¹⁶²Yb	70	92	161.935768(17)	18.87(19) min	β⁺	¹⁶²Tm	0+
¹⁶³Yb	70	93	162.936334(17)	11.05(25) min	β⁺	¹⁶³Tm	3/2-
¹⁶⁴Yb	70	94	163.934489(17)	75.8(17) min	ε	¹⁶⁴Tm	0+
¹⁶⁵Yb	70	95	164.93528(3)	9.9(3) min	β⁺	¹⁶⁵Tm	5/2-
¹⁶⁶Yb	70	96	165.933882(9)	56.7(1) h	ε	¹⁶⁶Tm	0+
¹⁶⁷Yb	70	97	166.934950(5)	17.5(2) min	β⁺	¹⁶⁷Tm	5/2-
¹⁶⁸Yb	70	98	167.933897(5)	观测上稳定^{[n 4]}			0+	0.0013(1)
¹⁶⁹Yb	70	99	168.935190(5)	32.026(5) d	ε	¹⁶⁹Tm	7/2+
^169mYb	24.199(3) keV			46(2) s	IT	¹⁶⁹Yb	1/2-
¹⁷⁰Yb	70	100	169.9347618(26)	观测上稳定^{[n 5]}			0+	0.0304(15)
^170mYb	1258.46(14) keV			370(15) ns			4-
¹⁷¹Yb	70	101	170.9363258(26)	观测上稳定^{[n 6]}			1/2-	0.1428(57)
^171m1Yb	95.282(2) keV			5.25(24) ms	IT	¹⁷¹Yb	7/2+
^171m2Yb	122.416(2) keV			265(20) ns			5/2-
¹⁷²Yb	70	102	171.9363815(26)	观测上稳定^{[n 7]}			0+	0.2183(67)
¹⁷³Yb	70	103	172.9382108(26)	观测上稳定^{[n 8]}			5/2-	0.1613(27)
^173mYb	398.9(5) keV			2.9(1) µs			1/2-
¹⁷⁴Yb	70	104	173.9388621(26)	观测上稳定^{[n 9]}			0+	0.3183(92)
¹⁷⁵Yb	70	105	174.9412765(26)	4.185(1) d	β⁻	¹⁷⁵Lu	7/2-
^175mYb	514.865(4) keV			68.2(3) ms			1/2-
¹⁷⁶Yb	70	106	175.9425717(28)	观测上稳定^{[n 10]}			0+	0.1276(41)
^176mYb	1050.0(3) keV			11.4(3) s			(8)-
¹⁷⁷Yb	70	107	176.9452608(28)	1.911(3) h	β⁻	¹⁷⁷Lu	(9/2+)
^177mYb	331.5(3) keV			6.41(2) s	IT	¹⁷⁷Yb	(1/2-)
¹⁷⁸Yb	70	108	177.946647(11)	74(3) min	β⁻	¹⁷⁸Lu	0+
¹⁷⁹Yb	70	109	178.95017(32)#	8.0(4) min	β⁻	¹⁷⁹Lu	(1/2-)
¹⁸⁰Yb	70	110	179.95233(43)#	2.4(5) min	β⁻	¹⁸⁰Lu	0+
¹⁸¹Yb	70	111	180.95615(43)#	1# min	β⁻	¹⁸¹Lu	3/2-#
¹⁸²Yb^{[n 11]}	70	112	181.95824(43)#	30# s [>300 ns]	β⁻?	¹⁸²Lu?	0+
¹⁸³Yb	70	113	182.96243(43)#	30# s [>300 ns]	β⁻?	¹⁸³Lu?	3/2−#
¹⁸⁴Yb	70	114	183.96500(54)#	7# s [>300 ns]	β⁻?	¹⁸⁴Lu?	0+
¹⁸⁵Yb	70	115	184.96943(54)#	5# s [>300 ns]	β⁻?	¹⁸⁵Lu?	9/2−#
¹⁸⁶Yb^[3]	70	116					0+
¹⁸⁷Yb^[3]	70	117

备注：画上#号的数据代表没有经过实验的证明，只是理论推测而已，而用括号括起来的代表数据不确定性。

←	同位素列表	→
铥的同位素	镱的同位素	镏的同位素

注释[编辑]

^ Bold for isotopes with half-lives longer than the age of the universe (nearly stable)
^ Abbreviations:
ε: Electron capture
IT: Isomeric transition
^ Bold for stable isotopes, bold italics for nearly stable isotopes (half-life longer than the age of the universe)
^ Believed to undergo α decay to ¹⁶⁴Er or β⁺β⁺ decay to ¹⁶⁸Er with a half-life over 130×10¹² years
^ Believed to undergo α decay to ¹⁶⁶Er
^ Believed to undergo α decay to ¹⁶⁷Er
^ Believed to undergo α decay to ¹⁶⁸Er
^ Believed to undergo α decay to ¹⁶⁹Er
^ Believed to undergo α decay to ¹⁷⁰Er
^ Believed to undergo α decay to ¹⁷²Er or β⁻β⁻ decay to ¹⁷⁶Hf with a half-life over 160×10¹⁵ years
^ Decay Product of Thorium-232

参考文献[编辑]

^ Prohaska, Thomas; Irrgeher, Johanna; Benefield, Jacqueline; Böhlke, John K.; Chesson, Lesley A.; Coplen, Tyler B.; Ding, Tiping; Dunn, Philip J. H.; Gröning, Manfred; Holden, Norman E.; Meijer, Harro A. J. Standard atomic weights of the elements 2021 (IUPAC Technical Report). Pure and Applied Chemistry. 2022-05-04. ISSN 1365-3075. doi:10.1515/pac-2019-0603 （英语）.
^ 存档副本. [2015-09-20]. （原始内容存档于2017-02-19）.
^ ^3.0 ^3.1 Tarasov, O. B.; Gade, A.; Fukushima, K.; et al. Observation of New Isotopes in the Fragmentation of ¹⁹⁸Pt at FRIB. Physical Review Letters. 2024, 132 (072501). doi:10.1103/PhysRevLett.132.072501.

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 Atomic weights of the elements. Review 2000 (IUPAC Technical Report) （页面存档备份，存于互联网档案馆）. Pure Appl. Chem. Vol. 75, No. 6, pp. 683-800, (2003) and Atomic Weights Revised (2005) （页面存档备份，存于互联网档案馆）.
Half-life, spin, and isomer data selected from these sources. Editing notes on this article's talk page.
- Audi, Bersillon, Blachot, Wapstra. The Nubase2003 evaluation of nuclear and decay properties （页面存档备份，存于互联网档案馆）, Nuc. Phys. A 729, pp. 3-128 (2003).
- National Nuclear Data Center, Brookhaven National Laboratory. Information extracted from the NuDat 2.1 database （页面存档备份，存于互联网档案馆） (retrieved Sept. 2005).
- David R. Lide (ed.), Norman E. Holden in CRC Handbook of Chemistry and Physics, 85th Edition, online version. CRC Press. Boca Raton, Florida (2005). Section 11, Table of the Isotopes.

[2] Bold for isotopes with half-lives longer than the age of the universe (nearly stable)

[4] Abbreviations:
ε: Electron capture
IT: Isomeric transition

[5] Bold for stable isotopes, bold italics for nearly stable isotopes (half-life longer than the age of the universe)

[6] Believed to undergo α decay to ¹⁶⁴Er or β⁺β⁺ decay to ¹⁶⁸Er with a half-life over 130×10¹² years

[7] Believed to undergo α decay to ¹⁶⁶Er

[8] Believed to undergo α decay to ¹⁶⁷Er

[9] Believed to undergo α decay to ¹⁶⁸Er

[10] Believed to undergo α decay to ¹⁶⁹Er

[11] Believed to undergo α decay to ¹⁷⁰Er

[12] Believed to undergo α decay to ¹⁷²Er or β⁻β⁻ decay to ¹⁷⁶Hf with a half-life over 160×10¹⁵ years

[13] Decay Product of Thorium-232

[CIAAW2021-1] Prohaska, Thomas; Irrgeher, Johanna; Benefield, Jacqueline; Böhlke, John K.; Chesson, Lesley A.; Coplen, Tyler B.; Ding, Tiping; Dunn, Philip J. H.; Gröning, Manfred; Holden, Norman E.; Meijer, Harro A. J. Standard atomic weights of the elements 2021 (IUPAC Technical Report). Pure and Applied Chemistry. 2022-05-04. ISSN 1365-3075. doi:10.1515/pac-2019-0603 （英语）.

[3] 存档副本. [2015-09-20]. （原始内容存档于2017-02-19）.

[PRL132.7-14] 3.0 ^3.1 Tarasov, O. B.; Gade, A.; Fukushima, K.; et al. Observation of New Isotopes in the Fragmentation of ¹⁹⁸Pt at FRIB. Physical Review Letters. 2024, 132 (072501). doi:10.1103/PhysRevLett.132.072501.

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