鉕的同位素

**主要的鉕同位素**
←Nd（60）	Sm（62）→
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钷没有稳定同位素。

圖表

符號	Z	N	同位素質量（u） ^{[n 1]}^{[n 2]}	半衰期 ^{[n 1]}^{[n 2]}	衰變方式^[1]	衰變產物 ^{[n 3]}^{[n 4]}	原子核自旋^{[n 1]}	相對豐度（莫耳分率）
符號	激發能量^{[n 1]}^{[n 2]}			半衰期 ^{[n 1]}^{[n 2]}	衰變方式^[1]	衰變產物 ^{[n 3]}^{[n 4]}	原子核自旋^{[n 1]}	相對豐度（莫耳分率）
¹²⁶Pm	61	65	125.95752(54)#	0.5# s
¹²⁷Pm	61	66	126.95163(64)#	1# s			5/2+#
¹²⁸Pm	61	67	127.94842(43)#	1.0(3) s	β⁺	¹²⁸Nd	6+#
¹²⁸Pm	61	67	127.94842(43)#	1.0(3) s	p	¹²⁷Nd	6+#
¹²⁹Pm	61	68	128.94316(43)#	3# s [>200 ns]	β⁺	¹²⁹Nd	5/2+#
¹³⁰Pm	61	69	129.94045(32)#	2.6(2) s	β⁺	¹³⁰Nd	(5+,6+,4+)
¹³⁰Pm	61	69	129.94045(32)#	2.6(2) s	β⁺, p （不常見）	¹²⁹Pr	(5+,6+,4+)
¹³¹Pm	61	70	130.93587(21)#	6.3(8) s	β⁺, p	¹³⁰Pr	5/2+#
¹³¹Pm	61	70	130.93587(21)#	6.3(8) s	β⁺	¹³¹Nd	5/2+#
¹³²Pm	61	71	131.93375(21)#	6.2(6) s	β⁺	¹³²Nd	(3+)
¹³²Pm	61	71	131.93375(21)#	6.2(6) s	β⁺, p (5×10⁻⁵%)	¹³¹Pr	(3+)
¹³³Pm	61	72	132.92978(5)	15(3) s	β⁺	¹³³Nd	(3/2+)
^133mPm	130.4(10) keV			10# s	β⁺	¹³³Nd	(11/2-)
^133mPm	130.4(10) keV			10# s	IT	¹³³Pm	(11/2-)
¹³⁴Pm	61	73	133.92835(6)	22(1) s	β⁺	¹³⁴Nd	(5+)
^134mPm	0(100)# keV			~5 s	IT	¹³⁴Pm	(2+)
¹³⁵Pm	61	74	134.92488(6)	49(3) s	β⁺	¹³⁵Nd	(5/2+,3/2+)
^135mPm	50(100)# keV			40(3) s	β⁺	¹³⁵Nd	(11/2-)
¹³⁶Pm	61	75	135.92357(8)	107(6) s	β⁺	¹³⁶Nd	(5-)
^136mPm	130(120) keV			47(2) s	β⁺	¹³⁶Nd	(2+)
¹³⁷Pm	61	76	136.920479(14)	2# min	β⁺	¹³⁷Nd	5/2+#
^137mPm	150(50) keV			2.4(1) min	β⁺	¹³⁷Nd	11/2-
¹³⁸Pm	61	77	137.919548(30)	10(2) s	β⁺	¹³⁸Nd	1+#
^138mPm	30(30) keV			3.24(5) min	β⁺	¹³⁸Nd	5-#
¹³⁹Pm	61	78	138.916804(14)	4.15(5) min	β⁺	¹³⁹Nd	(5/2)+
^139mPm	188.7(3) keV			180(20) ms	IT (99.83%)	¹³⁹Pm	(11/2)-
^139mPm	188.7(3) keV			180(20) ms	β⁺ (.17%)	¹³⁹Nd	(11/2)-
¹⁴⁰Pm	61	79	139.91604(4)	9.2(2) s	β⁺	¹⁴⁰Nd	1+
^140mPm	420(40) keV			5.95(5) min	β⁺	¹⁴⁰Nd	8-
¹⁴¹Pm	61	80	140.913555(15)	20.90(5) min	β⁺	¹⁴¹Nd	5/2+
^141m1Pm	628.40(10) keV			630(20) ns			11/2-
^141m2Pm	2530.9(5) keV			>2 µs
¹⁴²Pm	61	81	141.912874(27)	40.5(5) s	β⁺	¹⁴²Nd	1+
^142mPm	883.17(16) keV			2.0(2) ms	IT	¹⁴²Pm	(8)-
¹⁴³Pm	61	82	142.910933(4)	265(7) d	β⁺	¹⁴³Nd	5/2+
¹⁴⁴Pm	61	83	143.912591(3)	363(14) d	β⁺	¹⁴⁴Nd	5-
^144m1Pm	840.90(5) keV			780(200) ns			(9)+
^144m2Pm	8595.8(22) keV			~2.7 µs			(27+)
¹⁴⁵Pm	61	84	144.912749(3)	17.7(4) a	ε	¹⁴⁵Nd	5/2+
¹⁴⁵Pm	61	84	144.912749(3)	17.7(4) a	α (2.8×10⁻⁷%)	¹⁴¹Pr	5/2+
¹⁴⁶Pm	61	85	145.914696(5)	5.53(5) a	ε (66%)	¹⁴⁶Nd	3-
¹⁴⁶Pm	61	85	145.914696(5)	5.53(5) a	β⁻ (34%)	¹⁴⁶Sm	3-
¹⁴⁷Pm^{[n 5]}	61	86	146.9151385(26)	2.6234(2) a	β⁻	¹⁴⁷Sm	7/2+	痕量^{[n 6]}
¹⁴⁸Pm	61	87	147.917475(7)	5.368(2) d	β⁻	¹⁴⁸Sm	1-
^148mPm	137.9(3) keV			41.29(11) d	β⁻ (95%)	¹⁴⁸Sm	5-,6-
^148mPm	137.9(3) keV			41.29(11) d	IT (5%)	¹⁴⁸Pm	5-,6-
¹⁴⁹Pm^{[n 5]}	61	88	148.918334(4)	53.08(5) h	β⁻	¹⁴⁹Sm	7/2+
^149mPm	240.214(7) keV			35(3) µs			11/2-
¹⁵⁰Pm	61	89	149.920984(22)	2.68(2) h	β⁻	¹⁵⁰Sm	(1-)
¹⁵¹Pm^{[n 5]}	61	90	150.921207(6)	28.40(4) h	β⁻	¹⁵¹Sm	5/2+
¹⁵²Pm	61	91	151.923497(28)	4.12(8) min	β⁻	¹⁵²Sm	1+
^152m1Pm	140(90) keV			7.52(8) min			4-
^152m2Pm	250(150)# keV			13.8(2) min			(8)
¹⁵³Pm	61	92	152.924117(12)	5.25(2) min	β⁻	¹⁵³Sm	5/2-
¹⁵⁴Pm	61	93	153.92646(5)	1.73(10) min	β⁻	¹⁵⁴Sm	(0,1)
^154mPm	120(120) keV			2.68(7) min	β⁻	¹⁵⁴Sm	(3,4)
¹⁵⁵Pm	61	94	154.92810(3)	41.5(2) s	β⁻	¹⁵⁵Sm	(5/2-)
¹⁵⁶Pm	61	95	155.93106(4)	26.70(10) s	β⁻	¹⁵⁶Sm	4-
¹⁵⁷Pm	61	96	156.93304(12)	10.56(10) s	β⁻	¹⁵⁷Sm	(5/2-)
¹⁵⁸Pm	61	97	157.93656(14)	4.8(5) s	β⁻	¹⁵⁸Sm
¹⁵⁹Pm	61	98	158.93897(21)#	7000164800000000000♠1.648+0.43 −0.42 s^[2]	β⁻	¹⁵⁹Sm	5/2−#
¹⁶⁰Pm	61	99	159.94299(32)#	6999874000000000000♠874+16 −12 ms^[2]	β⁻	¹⁶⁰Sm
¹⁶¹Pm	61	100	160.94586(54)#	6999724000000000000♠724+20 −12 ms^[2]	β⁻ (98.91%)	¹⁶¹Sm	5/2−#
¹⁶¹Pm	61	100	160.94586(54)#	6999724000000000000♠724+20 −12 ms^[2]	β⁻, n (1.09%)	¹⁶⁰Sm	5/2−#
¹⁶²Pm	61	101	161.95029(75)#	6999467000000000000♠467+38 −18 ms^[2]	β⁻ (98.21%)	¹⁶²Sm
¹⁶²Pm	61	101	161.95029(75)#	6999467000000000000♠467+38 −18 ms^[2]	β⁻, n (1.79%)	¹⁶¹Sm
¹⁶³Pm	61	102	162.95368(86)#	6999362000000000000♠362+42 −30 ms^[2]	β⁻ (95%)	¹⁶³Sm	5/2−#
¹⁶³Pm	61	102	162.95368(86)#	6999362000000000000♠362+42 −30 ms^[2]	β⁻, n (1.79%)	¹⁶²Sm	5/2−#
¹⁶⁴Pm	61	103		6999280000000000000♠280+38 −33 ms^[2]	β⁻ (93.82%)	¹⁶⁴Sm
¹⁶⁴Pm	61	103		6999280000000000000♠280+38 −33 ms^[2]	β⁻, n (6.18%)	¹⁶³Sm
¹⁶⁵Pm	61	104		6999297000000000000♠297+111 −101 ms^[2]	β⁻ (86.74%)	¹⁶⁵Sm
¹⁶⁵Pm	61	104		6999297000000000000♠297+111 −101 ms^[2]	β⁻, n (13.26%)	¹⁶⁴Sm
¹⁶⁶Pm	61	105		6999228000000000000♠228+131 −112 ms^[2]	β⁻	¹⁶⁶Sm
¹⁶⁶Pm	61	105		6999228000000000000♠228+131 −112 ms^[2]	β⁻, n	¹⁶⁵Sm

^ ^1.0 ^1.1 ^1.2 ^1.3 畫上#號的數據代表沒有經過實驗的証明，僅為理論推測。
^ ^2.0 ^2.1 ^2.2 用括號括起來的數據代表不確定性。
^ 穩定的衰變產物以粗體表示。
^ 半衰期超过5亿年的衰变产物以粗斜体表示。
^ ^5.0 ^5.1 ^5.2 裂变产物
^ 裂变产物，也是¹⁵¹Eu的衰变产物

←	同位素列表	→
釹的同位素	钷的同位素	釤的同位素

参考文獻

^ Universal Nuclide Chart. nucleonica. [2015-09-20]. （原始内容存档于2017-02-19）.
^ ^2.0 ^2.1 ^2.2 ^2.3 ^2.4 ^2.5 ^2.6 ^2.7 Kiss, G. G.; Vitéz-Sveiczer, A.; Saito, Y.; et al. Measuring the β-decay properties of neutron-rich exotic Pm, Sm, Eu, and Gd isotopes to constrain the nucleosynthesis yields in the rare-earth region. The Astrophysical Journal. 2022, 936 (107): 107. Bibcode:2022ApJ...936..107K. doi:10.3847/1538-4357/ac80fc .

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).
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.

分类

[hash-1] 1.0 ^1.1 ^1.2 ^1.3 畫上#號的數據代表沒有經過實驗的証明，僅為理論推測。

[brackets-2] 2.0 ^2.1 ^2.2 用括號括起來的數據代表不確定性。

[4] 穩定的衰變產物以粗體表示。

[5] 半衰期超过5亿年的衰变产物以粗斜体表示。

[FP-6] 5.0 ^5.1 ^5.2 裂变产物

[7] 裂变产物，也是¹⁵¹Eu的衰变产物

[iso_data-3] Universal Nuclide Chart. nucleonica. [2015-09-20]. （原始内容存档于2017-02-19）.

[Ln922-8] 2.0 ^2.1 ^2.2 ^2.3 ^2.4 ^2.5 ^2.6 ^2.7 Kiss, G. G.; Vitéz-Sveiczer, A.; Saito, Y.; et al. Measuring the β-decay properties of neutron-rich exotic Pm, Sm, Eu, and Gd isotopes to constrain the nucleosynthesis yields in the rare-earth region. The Astrophysical Journal. 2022, 936 (107): 107. Bibcode:2022ApJ...936..107K. doi:10.3847/1538-4357/ac80fc .

[n 1]

[n 2]

[1]

[n 3]

[n 4]

[n 5]

[n 6]

[2]

鉕的同位素

圖表

参考文獻

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