Danh sách các đồng vị Đồng vị của thori

Nuclide [n 1]	Historic name	Z	N	Khối lượng đồng vị (Da) [n 2][n 3]	Chu kỳ bán rã [n 4]	Phương thức phân rã [n 5]	Sản phẩm phân rã [n 6]	Spin và parity [n 7][n 8]	Sự phong phú tự nhiên (phần mol)
Excitation energy	Normal proportion	Range of variation
207Th[4]		90	117		9.7(+46.6−4.4) ms	α	203Ra
208Th[5]		90	118	208.01791(4)	1.7(+1.7-0.6) ms	α	204Ra	0+
209Th[6]		90	119	209.01772(11)	7(5) ms [3.8(+69−15)]	α	205Ra	5/2−#
210Th		90	120	210.015075(27)	17(11) ms [9(+17−4) ms]	α	206Ra	0+
β+ (hiếm)	210Ac
211Th		90	121	211.01493(8)	48(20) ms [0.04(+3−1) s]	α	207Ra	5/2−#
β+ (rare)	211Ac
212Th		90	122	212.01298(2)	36(15) ms [30(+20-10) ms]	α (99.7%)	208Ra	0+
β+ (.3%)	212Ac
213Th		90	123	213.01301(8)	140(25) ms	α	209Ra	5/2−#
β+ (rare)	213Ac
214Th		90	124	214.011500(18)	100(25) ms	α	210Ra	0+
215Th		90	125	215.011730(29)	1.2(2) s	α	211Ra	(1/2−)
216Th		90	126	216.011062(14)	26.8(3) ms	α (99.99%)	212Ra	0+
β+ (.006%)	216Ac
216m1Th		2042(13) keV	137(4) μs			(8+)
216m2Th		2637(20) keV	615(55) ns			(11−)
217Th		90	127	217.013114(22)	240(5) μs	α	213Ra	(9/2+)
218Th		90	128	218.013284(14)	109(13) ns	α	214Ra	0+
219Th		90	129	219.01554(5)	1.05(3) μs	α	215Ra	9/2+#
β+ (10−7%)	219Ac
220Th		90	130	220.015748(24)	9.7(6) μs	α	216Ra	0+
EC (2×10−7%)	220Ac
221Th		90	131	221.018184(10)	1.73(3) ms	α	217Ra	(7/2+)
222Th		90	132	222.018468(13)	2.237(13) ms	α	218Ra	0+
EC (1.3×10−8%)	222Ac
223Th		90	133	223.020811(10)	0.60(2) s	α	219Ra	(5/2)+
224Th		90	134	224.021467(12)	1.05(2) s	α	220Ra	0+
CD (rare)	208Pb 16O
225Th		90	135	225.023951(5)	8.72(4) min	α (90%)	221Ra	(3/2)+
EC (10%)	225Ac
226Th		90	136	226.024903(5)	30.57(10) min	α	222Ra	0+
227Th	Radioactinium	90	137	227.0277041(27)	18.68(9) d	α	223Ra	1/2+	Trace[n 9]
228Th	Radiothorium	90	138	228.0287411(24)	1.9116(16) y	α	224Ra	0+	Trace[n 10]
CD (1.3×10−11%)	208Pb 20O
229Th		90	139	295855(24)	7.916(17)×103 y	α	225Ra	5/2+	Trace[n 11]
229mTh		8.3(2) eV[3]	7(1) μs[7]	IT	229Th	3/2+
230Th[n 12]	Ioni	90	140	230.0331338(19)	7.538(30)×104 y	α	226Ra	0+	0.0002(2)[n 13]
CD (5.6×10−11%)	206Hg 24Ne
SF (5×10−11%)	(Various)
231Th	Urani Y	90	141	231.0363043(19)	25.52(1) h	β−	231Pa	5/2+	Trace[n 9]
α (10−8%)	227Ra
232Th [n 14]	Thori	90	142	232.0380553(21)	1.405(6)×1010 y	α	228Ra	0+	0.9998(2)
SF (1.1×10−9%)	(various)
CD (2.78×10−10%)	182Yb 26Ne 24Ne
233Th		90	143	233.0415818(21)	21.83(4) min	β−	233Pa	1/2+
234Th	Urani X1	90	144	234.043601(4)	24.10(3) d	β−	234mPa	0+	Trace[n 13]
235Th		90	145	235.04751(5)	7.2(1) min	β−	235Pa	(1/2+)#
236Th		90	146	236.04987(21)#	37.5(2) min	β−	236Pa	0+
237Th		90	147	237.05389(39)#	4.8(5) min	β−	237Pa	5/2+#
238Th		90	148	238.0565(3)#	9.4(20) min	β−	238Pa	0+
This table header & footer: xem

↑ mTh – Excited nuclear isomer.
↑ ( ) – Uncertainty (1σ) is given in concise form in parentheses after the corresponding last digits.
↑ # – Atomic mass marked #: value and uncertainty derived not from purely experimental data, but at least partly from trends from the Mass Surface (TMS).
↑ Bold half-life – nearly stable, half-life longer than age of universe.
↑ Modes of decay:
CD: Cluster decay
EC: Electron capture
IT: Isomeric transition
↑ Bold symbol as daughter – Daughter product is stable.
↑ ( ) spin value – Indicates spin with weak assignment arguments.
↑ # – Values marked # are not purely derived from experimental data, but at least partly from trends of neighboring nuclides (TNN).
1 2 Sản phẩm phân rã trung gian của 235U.
↑ Sản phẩm phân rã trung gian của 232Th.
↑ Sản phẩm phân rã trung gian của 237Np.
↑ Used in uranium–thorium dating.
1 2 Sản phẩm phân rã trung gian của 238U.
↑ Hạt nhân phóng xạ nguyên thủy.

Tài liệu tham khảo

WikiPedia: Đồng vị của thori https://ui.adsabs.harvard.edu/abs/2022PhRvC.105e13... https://doi.org/10.1103%2FPhysRevC.105.L051302 https://api.semanticscholar.org/CorpusID:248935764 https://tel.archives-ouvertes.fr/tel-01139498/docu... https://ui.adsabs.harvard.edu/abs/1996PhRvC..54.20... https://doi.org/10.1103%2FPhysRevC.54.2043 https://pubmed.ncbi.nlm.nih.gov/9971554 https://arxiv.org/abs/1905.06308 https://ui.adsabs.harvard.edu/abs/2019Natur.573..2... https://doi.org/10.1038%2Fs41586-019-1533-4