𨧀的同位素

**主要的𬭊同位素**
33% SF	-
41% α	259Lr
3% ε	263Rf
ε	266Rf
ε	268Rf
83% α	266Lr
←Rf（104）	Sg（106）→
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𬭊的同位素

图表

符号	Z（p ）	N（n ）	同位素质量（u）	半衰期	衰变方式^[4]^{[n 1]}	衰变产物	原子核自旋
符号	激发能量			半衰期	衰变方式^[4]^{[n 1]}	衰变产物	原子核自旋
²⁵⁵Db	105	150	255.10707(45)#	1.7(5) s	α (~80%)	²⁵¹Lr
²⁵⁵Db	105	150	255.10707(45)#	1.7(5) s	SF (~20%)	(various)
²⁵⁶Db	105	151	256.10789(26)#	1.9(4) s [1.6(+5−3) s]	α (~64%)	²⁵²Lr
					SF (~0.02%)	(various)
					β⁺ (~36%)	²⁵⁶Rf
²⁵⁷Db	105	152	257.10758(22)#	1.53(17) s [1.50(+19−15) s]	α (>94%)	²⁵³Lr	(9/2+)
					SF (<6%)	(various)
					β⁺ (1%)	²⁵⁷Rf
^257mDb	140(100)# keV			0.67(6) s	α (>87%)	²⁵³Lr	(1/2−)
					SF (<13%)	(various)
					β⁺ (1#%)	²⁵⁷Rf
²⁵⁸Db	105	153	258.10929(33)#	4.5(4) s	α (64%)	²⁵⁴Lr
					β⁺ (36%)	²⁵⁸Rf
					SF (<1%)	(various)
^258mDb^{[n 2]}	60(100)# keV			1.9(5) s	β⁺	²⁵⁸Rf
^258mDb^{[n 2]}	60(100)# keV			1.9(5) s	IT （不常见）	²⁵⁸Db
²⁵⁹Db	105	154	259.10949(6)	0.51(16) s	α	²⁵⁵Lr
²⁶⁰Db	105	155	260.1113(1)#	1.52(13) s	α (>90.4%)	²⁵⁶Lr
					SF (<9.6%)	(various)
					β⁺ (<2.5%)	²⁶⁰Rf
^260mDb^{[n 2]}	200(150)# keV			19 s
²⁶¹Db	105	156	261.11192(12)#	4.5(1.1) s	SF (73%)	(various)
²⁶¹Db	105	156	261.11192(12)#	4.5(1.1) s	α (27%)	²⁵⁷Lr
²⁶²Db	105	157	262.11407(15)#	35(5) s	SF (~67%)	(various)
					α (~30%)	²⁵⁸Lr
					β⁺ (3#%)	²⁶²Rf
²⁶³Db	105	158	263.11499(18)#	29(9) s [27(+10−7) s]	SF (~56%)	(various)
					α (~37%)	²⁵⁹Lr
					β⁺ (~6.9%)^{[n 3]}	²⁶³Rf
²⁶⁶Db^{[n 4]}	105	161	266.12103(30)#	80(70) min	SF	(various)
²⁶⁶Db^{[n 4]}	105	161	266.12103(30)#	80(70) min	ε	²⁶⁶Rf
²⁶⁷Db^{[n 5]}	105	162	267.12247(44)#	4.6(3.7) h	SF	(various)
²⁶⁸Db^{[n 6]}	105	163	268.12567(57)#	30.8(5.0) h	SF (~100%)	(various)
²⁶⁸Db^{[n 6]}	105	163	268.12567(57)#	30.8(5.0) h	ε ^{[n 7]}	²⁶⁸Rf
²⁷⁰Db^{[n 8]}	105	165	270.13136(64)#	1.1 (+1.5−0.4) h^[5]	SF (17%)	(various)
²⁷⁰Db^{[n 8]}	105	165	270.13136(64)#	1.1 (+1.5−0.4) h^[5]	α (83%)	²⁶⁶Lr

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	→
𬬻的同位素	𬭊的同位素	𨭎的同位素

注释

↑ Abbreviations:
EC: Electron capture
IT: Isomeric transition
SF: Spontaneous fission
↑ ^2.0 ^2.1 Existence of this isomer is unconfirmed
↑ Heaviest nuclide known to undergo β⁺ decay
↑ Not directly synthesized, occurs in the decay chain of ²⁸²Nh
↑ Not directly synthesized, occurs in the decay chain of ²⁸⁷Mc
↑ Not directly synthesized, occurs in the decay chain of ²⁸⁸Mc
↑ Heaviest nuclide known to undergo electron capture
↑ Not directly synthesized, occurs in the decay chain of ²⁹⁴Ts

参考文献

↑ Münzenberg, G.; Gupta, M. Production and Identification of Transactinide Elements: 877. 2011. doi:10.1007/978-1-4419-0720-2_19.
↑ ^2.0 ^2.1 ^2.2 ^2.3 ^2.4 Six New Isotopes of the Superheavy Elements Discovered . Berkeley Lab. News center. October 26, 2010
↑ Oganessian, Yuri Ts.; Abdullin, F. Sh.; Bailey, P. D.; et al. Synthesis of a New Element with Atomic Number Z=117. Physical Review Letters (American Physical Society). 2010-04-09, 104 (142502) [2018-01-30]. Bibcode:2010PhRvL.104n2502O. PMID 20481935. doi:10.1103/PhysRevLett.104.142502.
↑ Universal Nuclide Chart. nucleonica. [2015-11-04].
↑ Khuyagbaatar, J.; Yakushev, A.; Düllmann, Ch. E.; et al. ⁴⁸Ca+²⁴⁹Bk Fusion Reaction Leading to Element Z=117: Long-Lived α-Decaying ²⁷⁰Db and Discovery of ²⁶⁶Lr. Physical Review Letters. 2014, 112 (17): 172501 [2015-11-04]. doi:10.1103/PhysRevLett.112.172501.

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). Pure Appl. Chem. Vol. 75, No. 6, pp. 683–800, (2003) and Atomic Weights Revised (2005).
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, Nuc. Phys. A 729, pp. 3–128 (2003).
- National Nuclear Data Center, Brookhaven National Laboratory. Information extracted from the NuDat 2.1 database (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.

[5] Abbreviations:
EC: Electron capture
IT: Isomeric transition
SF: Spontaneous fission

[ui-6] 2.0 ^2.1 Existence of this isomer is unconfirmed

[7] Heaviest nuclide known to undergo β⁺ decay

[8] Not directly synthesized, occurs in the decay chain of ²⁸²Nh

[9] Not directly synthesized, occurs in the decay chain of ²⁸⁷Mc

[10] Not directly synthesized, occurs in the decay chain of ²⁸⁸Mc

[11] Heaviest nuclide known to undergo electron capture

[12] Not directly synthesized, occurs in the decay chain of ²⁹⁴Ts

[1] Münzenberg, G.; Gupta, M. Production and Identification of Transactinide Elements: 877. 2011. doi:10.1007/978-1-4419-0720-2_19.

[lifetimes-2] 2.0 ^2.1 ^2.2 ^2.3 ^2.4 Six New Isotopes of the Superheavy Elements Discovered . Berkeley Lab. News center. October 26, 2010

[3] Oganessian, Yuri Ts.; Abdullin, F. Sh.; Bailey, P. D.; et al. Synthesis of a New Element with Atomic Number Z=117. Physical Review Letters (American Physical Society). 2010-04-09, 104 (142502) [2018-01-30]. Bibcode:2010PhRvL.104n2502O. PMID 20481935. doi:10.1103/PhysRevLett.104.142502.

[4] Universal Nuclide Chart. nucleonica. [2015-11-04].

[13] Khuyagbaatar, J.; Yakushev, A.; Düllmann, Ch. E.; et al. ⁴⁸Ca+²⁴⁹Bk Fusion Reaction Leading to Element Z=117: Long-Lived α-Decaying ²⁷⁰Db and Discovery of ²⁶⁶Lr. Physical Review Letters. 2014, 112 (17): 172501 [2015-11-04]. doi:10.1103/PhysRevLett.112.172501.

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