Liste der Isotope/Ordnungszahl 81 bis Ordnungszahl 90

Liste der Isotope ist die Übersichtsseite, um komfortabel auf alle Elemente zugreifen zu können. Dort wird auch der Aufbau erklärt und die Legende zur Tabelle ist auch dort zu finden. Zerfallsenergien wurden mit den angegebenen Massen und dem Masse-Energie-Äquivalent von $\textstyle \Delta m=931{,}4940954{\frac {\mathrm {MeV} }{\mathrm {u} }}$ neu berechnet.

₈₁ Thallium

Iso­top	Halbwerts­zeit	Zerfallsenergie (MeV)	Spin / Parität	Zerfallsart(en) (%)	NH (%)	Masse (u)
179Tl	0,16 s	6,86		α ≈ 100		180,438556
179m1Tl	1,4 ms	6,86	(9/2−)	α ≈ 100		180,438556
180Tl	0,70 s	6,82 (α), 11,1 (εβ+)		α = ?, εβ+ = ?, εSF ≈ 1,0·10−4		181,447221
181Tl	3,2 s	8,5	(1/2+)	εβ+ > 0		182,455885
181m1Tl	1,40 ms		(9/2−)	IT = 99,60, α = 0,40		182,455885
182Tl	3,1 s	10,1 (εβ+), 6,55 (α)	(7+)	εβ+ > 96, α < 4		183,464550
183Tl	6,9 s	7,6	(1/2+)	εβ+ > 0		184,473215
183m1Tl	53,3 ms	0,550 (IT), 6,85 (α)	(9/2−)	IT > 99,990, α < 0,010		184,473215
183m2Tl	1,48 µs		(13/2+)	IT		184,473215
184Tl	11 s	9,2 (εβ+), 6,30 (α)	2+	εβ+ = 97,9, α = 2,1		185,481880
185Tl	19,5 s	6,6	(1/2+)	εβ+ = ?		186,490545
185m1Tl	1,83 s	0,454 (IT), 6,554 (α)	(9/2−)	IT = ?, α = ?		186,490545
186Tl	27,5 s	8,5 (εβ+), 5,89 (α)	(7+)	εβ+ ≈ 100, α ≈ 0,006		187,49921
186m1Tl	2,9 s	0,374	(10−)	IT		187,49921
187Tl	51 s	5,9 (εβ+), 5,539 (α)	(1/2+)	εβ+ = ?, α = ?		188,507875
187m1Tl	15,60 s	0,335 (IT), 6,235 (εβ+), 5,874 (α)	(9/2−)	IT = ?, εβ+ = ?, α = ?		188,507875
188Tl	71 s	7,8	(2−)	εβ+		189,51654
188m1Tl	71 s	7,8	(7+)	εβ+		189,51654
188m2Tl	41 ms		(9−)	IT		189,51654
189Tl	2,3 min	5,18	(1/2+)	εβ+		190,525205
189m1Tl	1,4 min	5,461 (εβ+), 0,281 (IT)	(9/2−)	εβ+ ≈ 100, IT < 4		190,525205
190Tl	2,6 min	7,0	(2)−	εβ+		191,53370
190m1Tl	3,7 min	7,0	(7+)	εβ+		191,53370
191Tl		4,49	(1/2+)	εβ+ = ?		192,542535
191m1Tl	5,22 min	4,789	9/2(−)	εβ+		192,542535
192Tl	9,6 min	6,12	(2−)	εβ+		193,5512
192m1Tl	10,8 min	6,12	(7+)	εβ+		193,5512
193Tl	21,6 min	3,64	1/2+	εβ+		194,559864
193m1Tl	2,11 min	0,365 (IT), 4,005 (εβ+)	9/2−	IT = 75, εβ+ = 25		194,559864
194Tl	33,0 min	5,28 (εβ+), 3,49 (α)	2−	εβ+ ≈ 100, α < 1·10−7		195,568529
194m1Tl	32,8 min	5,28	(7+)	εβ+		195,568529
195Tl	1,16 h	2,81	1/2+	εβ+		196,577194
195m1Tl	3,6 s	0,483	9/2−	IT		196,577194
196Tl	1,84 h	4,38	2−	εβ+		197,585859
196m1Tl	1,41 h	4,774 (εβ+) 0,394 (IT)	(7+)	εβ+ = 95,5, IT = 4,5		197,585859
197Tl	2,84 h	2,18	1/2+	εβ+		198,594524
197m1Tl	0,54 s	0,608	9/2−	IT		198,594524
198Tl	5,3 h	3,46	2−	εβ+		199,603189
198m1Tl	1,87 h	4,004 (εβ+), 0,544 (IT)	7+	εβ+ = 54, IT = 46		199,603189
198m2Tl	32,1 ms	0,742	(10−)	IT		199,603189
199Tl	7,42 h	1,44	1/2+	εβ+		200,611854
199m1Tl	28,4 ms	0,75	9/2−	IT		200,611854
200Tl	26,1 h	2,456	2−	εβ+		201,620519
200m1Tl	34,3 ms	0,754	7+	IT		201,620519
201Tl	72,912 h	0,483	1/2+	ε		202,629184
201m1Tl	2,035 ms	0,92	(9/2−)	IT		202,629184
202Tl	12,23 d	1,365	2−	εβ+		203,637849
202m1Tl	572 µs		7+			203,637849
203Tl	stabil α		1/2+		029,524	204,646514
204Tl	3,78 a	0,764 (β−), 0,347 (ε)	2−	β− = 97,10, ε = 2,90		205,655179
205Tl	stabil α		1/2+		070,476	206,663844
206Tl	4,199 min	1,533	0−	β−		207,672508
206m1Tl	3,74 min	2,643	(12−)	IT		207,672508
207Tl	4,77 min	1,423	1/2+	β−		208,681173
207m1Tl	1,33 s	1,348	11/2−	IT = 100, β− < 0,1		208,681173
208Tl	3,053 min	5,001	5(+)	β−		209,689838
209Tl	2,20 min	3,98	(1/2+)	β−		210,698503
210Tl	1,30 min	5,484 (β−), 0,299 (β−n)	(5+)	β− ≈ 100, β−n = 0,007$\left.^{+7}_{-4}\right.$		211,707168

₈₂ Blei

Iso­top	Halbwerts­zeit	Zerfallsenergie (MeV)	Spin / Parität	Zerfallsart(en) (%)	NH (%)	Masse (u)
181Pb	45 ms	7,379 (α), 9,3 (εβ+)	(13/2+)	α ≈ 98, εβ+ ≈ 2		180,99665
182Pb	55 ms	7,076	0+	α <= 100		181,992673
183Pb	300 ms	7,03 (α), 8,7 (εβ+)	(1/2−)	α ≈ 94, εβ+ ≈ 6		182,99187
184Pb	0,55 s	6,775 (α), 6,0 (εβ+)	0+	α = ?, εβ+ = ?		183,988136
185Pb	4,1 s	6,68		α < 100		184,987610
186Pb	4,83 s	6,471 (α)	0+	α = 54, εβ+ = 46		185,984238
187Pb	18,3 s	7,2 (εβ+), 6,395 (α)	(13/2+)	εβ+ = 98,0, α = 2,0		186,983911
187m1Pb	15,2 s	7,2 (εβ+), 6,395 (α)		εβ+ = ?, α = ?		186,983911
188Pb	24 s	4,8 (εβ+), 6,111 (α)	0+	εβ+ = 91,5, α = 8,5		187,980875
189Pb	51 s	6,7 (εβ+), 5,85 (α)		εβ+ > 99, α ≈ 0,4		188,980844
190Pb	1,2 min	4,1 (εβ+), 5,698 (α)	0+	εβ+ = 99,79, α = 0,21		189,978082
191Pb	1,33 min	5,9 (εβ+), 5,41 (α)	(3/2−)	εβ+ = 99,987, α = 0,013		190,97828
191m1Pb	2,18 min	6,038 (εβ+), 5,548 (α)	(13/2+)	εβ+ ≈ 100, α ≈ 0,02		190,97828
192Pb	3,5 min	3,4 (εβ+), 5,221 (α)	0+	εβ+ = 99,9941, α = 0,0059		191,975785
193Pb	2 min		(3/2−)	εβ+ = ?		192,97617
193m1Pb	5,8 min	5,2	(13/2+)	εβ+		192,97617
194Pb	12,0 min	2,7 (εβ+), 4,738 (α)	0+	εβ+ ≈ 100, α = 7,3·10−6		193,974012
195Pb	15 min	4,5	3/2−	εβ+		194,974549
195m1Pb	15,0 min	4,701	13/2+	εβ+		194,974549
196Pb	37 min	2,05 (εβ+), 4,2 (α)	0+	εβ+ ≈ 100, α < 3·10−5		195,972787
197Pb	8 min	3,58	3/2−	εβ+		196,973435
197m1Pb	43 min	3,889 (εβ+), 0,319 (IT)	13/2+	εβ+ = 81, IT = 19		196,973435
198Pb	2,40 h	1,41	0+	εβ+		197,972015
199Pb	90 min	2,88	3/2−	εβ+		198,972913
199m1Pb	12,2 min	0,425 (IT), 3,305 (εβ+)	13/2+	IT = 93, εβ+ = 7		198,97291
200Pb	21,5 h	0,811	0+	ε		199,971818
201Pb	9,33 h	1,90	5/2−	εβ+		200,97287
201m1Pb	61 s	0,629 (IT), 2,529 (εβ+)	13/2+	IT > 99, εβ+ < 1		200,97287
202Pb	5,25·104 a	0,05 (ε), 2,598 (α)	0+	ε = 100, α < 1		201,972152
202m1Pb	3,53 h	2,17 (IT), 2,22 (εβ+)	9−	IT = 90,5, εβ+ = 9,5		201,972152
203Pb	51,873 h	0,975	5/2−	ε		202,973391
203m1Pb	6,3 s	0,825	13/2+	IT		202,973391
203m2Pb	0,48 s	2,949	29/2−	IT		202,973391
203m3PB						202,973391
204Pb	>1,4·1017 a		0+		001,4	203,973044
204m1Pb	67,2 min	2,186	9−	IT		203,973044
205Pb	1,53·107 a	0,051	5/2−	ε		204,9744816
205m1Pb	5,54 ms	1,014	13/2+	IT		204,9744816
206Pb	stabil α		0+		024,1	205,974466
207Pb	stabil α		1/2−		022,1	206,975897
207m1Pb	0,805 s	1,633	13/2+	IT		206,975897
208Pb	stabil α		0+		052,4	207,976653
209Pb	3,253 h	0,644	9/2+	β−		208,98040
210Pb	22,3 a	0,064 (β−), 3,792 (α)	0+	β− ≈ 100, α = 1,9·10−6		209,9841883
211Pb	36,1 min	1,373	9/2+	β−		210,9887354
212Pb	10,64 h	0,574	0+	β−		211,991896
213Pb	10,2 min	2,070	(9/2+)	β−		212,996561
214Pb	26,8 min	1,024	0+	β−		213,9998038
215Pb	36 s		(5/2+)	β−		215,00466

₈₃ Bismut

Iso­top	Halbwerts­zeit	Zerfallsenergie (MeV)	Spin / Parität	Zerfallsart(en) (%)	NH (%)	Masse (u)
184mBi	13 ms		?	α ≈ 100
185Bi	58 µs		1/2+	p ≈ 90, α ≈ 10
186Bi	14,8 ms		(3+)	α ≈ 100
186m1Bi	9,8 ms		(10−)	α ≈ 100
187Bi	35 ms	7,69	(9/2−)	α > 50
187m1Bi	370 µs	7,75	(1/2+)	α ≈ 100
188Bi	265 ms	7,27	(10-)	α ≈ 100
188m1Bi	60 ms		(3+)	α ≈ 100
189Bi	674 ms	7,27 (α), 8,0 (εβ+)	(9/2−)	α > 50, εβ+ < 50
189m1Bi	5 ms	7,362 (α), 8,092 (εβ+)	(1/2+)	α > 50, εβ+ < 50
190Bi	6,3 s	6,862 (α), 9,6 (εβ+)	(3+)	α = 90, εβ+ = 10
190m1Bi	6,2 s	6,862 (α), 9,6 (εβ+)	(10−)	α = 70, εβ+ = 30
191Bi	12,4 s	6,781 (α), 7,3 (εβ+)	(9/2−)	α = 51, εβ+ = 49
191m1Bi	125 ms	7,023 (α)	(1/2+)	α = 68, IT = 32
192Bi	34,6 s	9,0 (εβ+), 6,376 (α)	(3+)	εβ+ = 88, α = 12
192m1Bi	39,6 s	9,105 (εβ+), 6,481 (α)	(10−)	εβ+ = 90, α = 10
193Bi	63,6 s	6,5 (εβ+), 6,305 (α)	(9/2−)	εβ+ = 96,5, α = 3,5
193m1Bi	3,2 s	6,612 (α), 6,807 (εβ+)	(1/2+)	α = 84, εβ+ = 16
194Bi	95 s	8,2 (εβ+), 5,918 (α)	(3+)	εβ+ = 99,54, α = 0,46
194m1Bi	115 s	8,2 (εβ+), 5,918 (α)	(10−)	εβ+ = 99,80, α = 0,20
194m2Bi	125 s	8,2 (εβ+), 5,918 (α)	(6+,7+)	εβ+ = 100
195Bi	183 s	5,9 (εβ+), 5,833 (α)	(9/2−)	εβ+ = 99,97, α = 0,03
195m1Bi	87 s	6,301 (εβ+), 6,234 (α)	(1/2+)	εβ+ = 67, α = 33
196Bi	308 s	7,36 (εβ+), 5,46 (α)	(3+)	εβ+ ≈ 100, α = 0,001
196m1Bi	0,6 s		(7+)	εβ+, IT
196m2Bi	240 s	7,629 (εβ+), 0,269 (IT)	(10−)	εβ+ = 74,2, IT = 25,8, α = 0,00038
197Bi	9,33 min	5,2 (εβ+), 5,39 (α)	(9/2−)	εβ+ ≈ 100, α = 1·10−4
197m1Bi	5,04 min	5,89 (α), 5,7 (εβ+), 0,50 (IT)	(1/2+)	α = 55, εβ+ = 45, IT < 0,3
198Bi	10,3 min	6,56	(2+, 3+)	εβ+
198m1Bi	11,6 min	6,56	(7+)	εβ+
198m2Bi	7,7 s	0,249	(10−)	IT
199Bi	27 min	4,34	9/2−	εβ+
199m1Bi	24,70 min	5,02 (εβ+), 5,64 (α)	(1/2+)	εβ+ ≈ 99, α ≈ 1
200Bi	36,4 min	5,89	7+	εβ+
200m1Bi	31 min	5,89 (εβ+), 0,0 (IT)	(2+)	εβ+ > 90, IT < 10
200m2Bi	0,40 s	0,428	(10−)	IT
201Bi	108 min	3,84 (εβ+), 4,5 (α)	9/2−	εβ+ ≈ 100, α < 1·10−4
201m1Bi	59,1 min	4,686 (ε), 5,346 (IT), 5,346 (α)	1/2+	ε > 93, IT < 6,8, α ≈ 0,3
202Bi	1,72 h	5,15 (εβ+), 4,29 (α)	5+	εβ+ ≈ 100, α < 1·10−5
203Bi	11,76 h	3,253 (εβ+), 4,15 (α)	9/2−	εβ+ ≈ 100, α ≈ 1·10−5
203m1Bi	303 ms	1,098	1/2+	IT
204Bi	11,22 h	4,438	6+	εβ+
204m1Bi	13,0 ms	0,805	10−	IT
204m2Bi	1,07 ms	2,833	(17+)	IT
205Bi	15,31 d	2,708	9/2−	εβ+
206Bi	6,243 d	3,758	6(+)	εβ+
207Bi	31,55 a	2,399	9/2−	εβ+
208Bi	3.68e5 a	2,880	(5)+	εβ+
208m1Bi	2,58 ms	1,571	(10)−	IT
209Bi	1.9e19 a	3,137	9/2−	α	100
210Bi	5,013 d	1,163 (β−), 5,037 (α)	1−	β− ≈ 100
210m1Bi	3.04e6 a	5,308	9−	α
211Bi	2,14 min	6,751 (α), 0,579 (β−)	9/2−	α = 99,724, β− = 0,276
212Bi	60,55 min	2,254 (β−), 6,207 (α), 11,208 (β−+α)	1(−)	β− = 64,06, α = 35,94
212m1Bi	25,0 min	6,457 (α), 2,504 (β−)	(9−)	α = 67, β− = 33, β−α = 30
212m2Bi	7,0 min	4,164		β− ≈ 100
213Bi	45,59 min	1,464 (β−), 5,982 (α)	9/2−	β− = 97,91, α = 2,09
214Bi	19,9 min	3,272 (β−), 5,617 (α)	1−	β− = 99,979, α = 0,021
215Bi	7,6 min	2,25		β−
216Bi	3,6 min	4,0	(1−)	β− ≈ 100
217Bi	97 s		(9/2−)	β−

₈₄ Polonium

Iso­top	Halbwerts­zeit	Zerfallsenergie (MeV)	Spin / Parität	Zerfallsart(en) (%)	Masse (u)
190Po	2,0 ms	7,643 (α)	0+	α = 99,9, εβ+ = 0,1
191Po	15,5 ms	7,471		α = ?
192Po	0,0332 s	7,32 (α), 5,7 (εβ+)	0+	α ≈ 99, εβ+ ≈ 1
193Po	0,42 s	7,10	(3/2−)	α = ?
193m1Po	0,24 s		(13/2+)	α = ?
194Po	0,392 s	6,987	0+	α = 93
195Po	4,64 s	6,75 (α), 6,8 (εβ+)	(3/2−)	α = 75, εβ+ = 25
195m1Po	1,92 s	6,98 (α), 7,03 (εβ+), 0,23 (IT)	(13/2+)	α ≈ 90, εβ+ ≈ 10, IT < 0,01
196Po	5,8 s	6,657 (α), 4,6 (εβ+)	0+	α ≈ 98, εβ+ ≈ 2
197Po	53,6 s	6,2 (εβ+), 6,41 (α)	(3/2−)	εβ+ = 56, α = 44
197m1Po	25,8 s	6,614 (α), 6,614 (εβ+), 0,204 (IT)	(13/2+)	α = 84, εβ+ = 16, IT = 0,01
198Po	1,77 min	6,309 (α), 4,02 (εβ+)	0+	α = 57, εβ+ = 43
199Po	5,48 min	5,6 (εβ+), 6,074 (α)	3/2−	εβ+ = 88, α = 12
199m1Po	4,13 min	5,91 (εβ+), 6,384 (α), 0,310 (IT)	13/2+	εβ+ = 59, α = 39 , IT = 2,1
200Po	11,5 min	3,35 (εβ+), 5,982 (α)	0+	εβ+ = 88,9, α = 11,1
201Po	15,3 min	4,88 (εβ+), 5,799 (α)	3/2−	εβ+ = 98,4, α = 1,6
201m1Po	8,9 min	0,424 (IT), 5,304 (εβ+), 6,223 (α)	13/2+	IT = 56, ε = 41, α ≈ 2,9
202Po	44,7 min	2,82 (εβ+), 5,701 (α)	0+	εβ+ = 98,08, α = 1,92
202m1Po	85 ns		8+
202m2Po	200 ns		11−
202m3Po	19 ns		12+
202m4Po	11 ns		(15−)
203Po	36,7 min	4,23 (εβ+), 5,496 (α)	5/2−	εβ+ = 99,89, α = 0,11
203m1Po	45 s	0,641 (IT), 6,137 (α)	13/2+	IT ≈ 100, α ≈ 0,04
204Po	3,53 h	2,34 (εβ+), 5,485 (α)	0+	εβ+ = 99,34, α = 0,66
205Po	1,66 h	3,53 (εβ+), 5,324 (α)	5/2−	εβ+ = 99,96, α = 0,04
205m1Po	58 ms		19/2−	IT
206Po	8,8 d	1,846 (εβ+), 5,326 (α)	0+	εβ+ = 94,55, α = 5,45
207Po	5,80 h	2,909 (εβ+), 5,216 (α)	5/2−	εβ+ = 99,979, α = 0,021
207m1Po	2,8 s	1,383	19/2−	IT
208Po	2,898 a	5,215 (α), 1,401 (εβ+)	0+	α = 99,9958, εβ+ = 0,0042
209Po	102 a	4,879 (α), 1,893 (εβ+)	1/2−	α = 99,52, εβ+ = 0,48
210Po	138,376 d	5,307	0+	α
211Po	0,516 s	7,595	9/2+	α
211m1Po	25,2 s	9,057 (α), 1,462 (IT)	(25/2+)	α = 99,984, IT = 0,016
212Po	0,299 µs		0+	α
212m1Po	45,1 s		(18+)	α = 99,93, IT = 0,07
213Po	4,2 µs	8,537	9/2+	α
214Po	164,3 µs	7,833	0+	α
214m1Po	99 ps	1,416 (IT), 9,248 (α)	0+	IT = 0,14, α = 99,86
215Po	1,781 ms	7,526 (α), 0,721 (β−)	9/2+	α ≈ 100, β− = 2,3·10−4
216Po	0,145 s	6,906	0+	α
217Po	10 s			α > 95, β− < 5
218Po	3,10 min	6,115 (α), 0,265 (β−)	0+	α = 99,980 , β− = 0,020

₈₅ Astat

Iso­top	Halbwerts­zeit	Zerfallsenergie (MeV)	Spin / Parität	Zerfallsart(en) (%)	Masse (u)
190At	1ms (+1,4ms / −0,4ms)			α = 7750(20) keV
193At	40 ms			α = ?
194At	40 ms	7,31		α = ?
194m1At	250 ms			α = ?
195At	0,63 s	7,4 (α), 8,0 (εβ+)		α > 75, εβ+ < 25
196At	0,253 s	7,2		α ≈ 100
197At	0,35 s	7,1 (α), 7,2 (εβ+)	(9/2−)	α = 96, εβ+ = 4
197m1At	3,7 s	7,152 (α), 7,252 (εβ+)	(1/2+)	α = ?, εβ+ = ?
198At	4,2 s	6,893 (α), 8,8 (εβ+)	(3+)	α = 90, εβ+ = 10
198m1At	1,0 s	6,995 (α), 8,902 (εβ+)	(10−)	α = 84, εβ+ = 16
199At	7,2 s	6,78 (α), 6,6 (εβ+)	(9/2−)	α = 90, εβ+ = 10
200At	43 s	6,596 (α), 7,97 (εβ+)	(3+)	α = 57, εβ+ = 43
200m1At	47 s	8,074 (εβ+), 6,70 (α)	(7+)	εβ+ < 57, α = 43
200m2At	3,5 s	0,335 (IT), 6,931 (α), 8,305 (εβ+)	(10−)	IT ≈ 85, α ≈ 10,5, ε ≈ 4,5
201At	89 s	6,473 (εβ+), 5,85 (α)	(9/2−)	α = 71, εβ+ = 29
202At	184 s	7,21 (εβ+), 6,354 (α)	(2,3)+	εβ+ = 82, α = 18
202m1At	182 s	7,21 (εβ+), 6,354 (α)	(7+)	εβ+ = 91,3, α = 8,7
202m2At	0,46 s	0,392 (IT), 7,602 (α), 6,746 (εβ+)	(10−)	IT = 99,65, εβ+ = 0,25, α = 0,096
203At	7,4 min	5,06 (εβ+), 6,21 (α)	9/2−	εβ+ = 69, α = 31
204At	9,2 min	6,48 (εβ+), 6,07 (α)	7+	εβ+ = 96,2 , α = 3,8
204m1At	108 ms	0,587	(10−)	IT
205At	26,2 min	4,54 (εβ+), 6,02 (α)	9/2−	εβ+ = 90, α = 10
206At	30,0 min	5,72 (εβ+), 5,888 (α)	(5)+	εβ+ = 99,11, α = 0,89
207At	1,80 h	3,91 (εβ+), 5,873 (α)	9/2−	εβ+ = 91,4, α = 8,6
208At	1,63 h	4,973 (εβ+), 5,751 (α)	6+	εβ+ = 99,45, α = 0,55
209At	5,41 h	3,486 (εβ+), 5,757 (α)	9/2−	εβ+ = 95,9, α = 4,1
210At	8,1 h	3,981 (εβ+), 5,631 (α)	(5)+	εβ+ = 99,825, α = 0,175
211At	7,214 h	0,786 (εβ+), 5,982 (α)	9/2−	ε = 58,2, α = 41,8
212At	0,314 s	7,829 (α), 1,754 (εβ+), 0,043 (β−)	(1−)	α ≈ 100, εβ+ < 0,03, β− < 2·10−6
212m1At	0,119 s	8,051 (α), 0,222 (IT)	(9−)	α > 99, IT < 1
213At	125 ns	9,254	9/2−	α
214At	558 ns	8,987	1−	α
214m1At	265 ns	9,046		α < 100
214m2At	760 ns	9,218	9−	α <= 100
215At	0,10 ms	8,178	9/2−	α
216At	0,30 ms	7,949 (α), 0,469 (ε), 2,003 (β−)	1−	α ≈ 100, ε < 3·10−7, β− < 6·10−3
216m1At	0,1 ms	8,362	(9−)	α <= 100
217At	32,3 ms	5,982 (α), 0,786 (εβ+)	9/2−	α = 99,988, β− = 0,012
218At	1,5 s	6,874 (α), 2,883 (εβ+)		α = 99,9, β− = 0,1
219At	56 s	6,39 (α), 1,70 (εβ+)		α ≈ 97, β− ≈ 3
220At	3,71 min	3,65 (εβ+), 6,05 (α)	3	α = 8, β− = 92
221At	2,3 min			β−
222At	54 s	4,4		β−
223At	50 s			β− ≈ 100, α = 0,008

₈₆ Radon

Isotop	Halbwerts­zeit	Zerfalls­energie (MeV)	Spin / Parität	Zerfallsart(en) (%)	Masse (u)
196Rn	3 ms		0+	α ≈ 100
197Rn	65 ms		(3/2−)	α ≈ 100
197m1Rn	19 ms		(13/2+)	α
198Rn	64 ms	7,345 (α), 5,6 (εβ+)	0+	α ≈ 100, εβ+ ≈ 0
199Rn	0,62 s	7,14 (α), 7,2 (εβ+)	(3/2−)	α = 94, εβ+ = 6
199m1Rn	0,32 s		(13/2+)	α = 97, εβ+ = 3
200Rn	0,96 s	7,043 (α), 5,0 (εβ+)	0+	α = 86$\left.^{+14}_{-4}\right.$, εβ+ < 18
201Rn	7,0 s	6,86 (α), 6,6 (εβ+)	(3/2−)	α ≈ 80, εβ+ ≈ 20
201m1Rn	3,8 s	7,14 (α), 6,88 (εβ+), 0,28 (IT)	(13/2+)	α ≈ 90, εβ+ ≈ 10, IT ≈ 0
202Rn	10,0 s	6,774 (α), 4,44 (εβ+)	0+	α = 86, εβ+ = 14
203Rn	45 s	6,63 (α), 6,0 (εβ+)	(3/2, 5/2)−	α = 66, εβ+ = 34
203m1Rn	28 s	6,991 (α), 6,361 (εβ+), 0,361 (IT)	(13/2+)	α ≈ 80, εβ+ ≈ 20, IT < 0,1
204Rn	1,24 min	6,546 (α), 3,82 (εβ+)	0+	α = 73, εβ+ = 27
205Rn	2,8 min	5,24 (εβ+), 6,39 (α)	5/2−	εβ+ = 77, α = 23
206Rn	5,67 min	6,384 (α), 3,31 (εβ+)	0+	α = 63, εβ+ = 37
207Rn	9,25 min	4,61 (εβ+), 6,251 (α)	5/2−	εβ+ = 79, α = 21
208Rn	24,35 min	6,26 (α), 2,85 (εβ+)	0+	α = 62, εβ+ = 38
209Rn	28,5 min	3,93 (εβ+), 6,155 (α)	5/2−	εβ+ = 83, α = 17
210Rn	2,4 h	6,159 (α), 2,374 (εβ+)	0+	α = 96, εβ+ = 4
211Rn	14,6 h	2,892 (εβ+), 5,965 (α)	1/2−	ε = 72,6, α = 27,4
212Rn	23,9 min	6,385	0+	α
213Rn	25,0 ms	8,243	(9/2+)	α
214Rn	0,27 µs	9,208	0+	α
214m1Rn	0,69 ns	1,443 (IT), 10,651 (α)	6+	IT < 100, α > 0
214m2Rn	6,5 ns	1,625 (IT), 10,833 (α)	8+	IT ≈ 90, α ≈ 10
215Rn	2,30 µs	8,839	9/2+	α
216Rn	45 µs	8,20	0+	α
217Rn	0,54 ms	7,889	9/2+	α
218Rn	35 ms	7,263	0+	α
219Rn	3,96 s	6,945	5/2+	α
220Rn	55,6 s	6,405	0+	α
221Rn	25 min	1,22 (β−), 6,146 (α)	7/2(+)	β− = 78, α = 22
222Rn	3,8235 d	5,59	0+	α
223Rn	23,2 min		7/2	β− ≈ 100, α = 0,0004
224Rn	107 min	0,8	0+	β−
225Rn	4,5 min		7/2−	β−
226Rn	7,4 min	1,4	0+	β−
227Rn	22,5 s			β−
228Rn	65 s	2,2	0+	β−
229Rn	12 s

₈₇ Francium

Iso­top	Halbwerts­zeit	Zerfallsenergie (MeV)	Spin / Parität	Zerfallsart(en) (%)	Masse (u)
200Fr	19 ms		(3+)	α
200m1Fr	0,57 s		(10−)	α
201Fr	48 ms	7,54 (α), 7,9 (εβ+)	(9/2−)	α ≈ 100, εβ+ < 1
202Fr	0,34 s	7,389 (α), 9,4 (εβ+)	(3+)	α ≈ 97, εβ+ ≈ 3
202m1Fr	0,34 s	7,491 (α), 9,502 (εβ+)	(10−)	α ≈ 97, εβ+ ≈ 3
203Fr	0,55 s	7,28 (α), 7,2 (εβ+)	(9/2−)	α ≈ 95, εβ+ ≈ 5
204Fr	1,7 s	7,17 (α), 8,6 (εβ+)	(3+)	α ≈ 80, εβ+ ≈ 20
204m1Fr	2,6 s	7,211	(7+)	α = ?
204m2Fr	1 s	7,486 (α), 0,316 (IT)	(10−)	α ≈ 100, IT < 1
205Fr	3,85 s	7,06 (α), 6,52 (εβ+)	(9/2−)	α ≈ 100, εβ+ < 1
206Fr	15,9 s	6,926 (α), 7,75 (εβ+)	(5+)	α = 84, εβ+ = 16
206m1Fr		6,926		α < 84
206m2Fr	0,7 s	7,576 (α), 0,65 (IT)	(10−)	α = 0,3, IT = ?
207Fr	14,8 s	6,9 (α), 5,71 (εβ+)	9/2−	α = 95, εβ+ = 5
208Fr	59,1 s	6,77 (α), 6,99 (εβ+)	7+	α = 90, εβ+ = 10
209Fr	50,0 s	6,777 (α), 5,16 (εβ+)	9/2−	α = 89, εβ+ = 11
210Fr	3,18 min	6,7 (α), 6,262 (εβ+)	6+	α = 60, εβ+ = 40
211Fr	3,10 min	6,66 (α), 4,605 (εβ+)	9/2−	α > 80, ε < 20
212Fr	20,0 min	5,117 (εβ+), 6,529 (α)	5+	εβ+ = 57, α = 43
213Fr	34,6 s	6,905 (α), 2,148 (εβ+)	9/2−	α ≈ 100, εβ+ = 0,55
214Fr	5,0 ms	8,589	(1−)	α
214m1Fr	3,35 ms	8,711	(8−)	α
215Fr	86 ns	9,540	9/2−	α
215m1Fr	3,5 ns		(23/2)−
216Fr	0,70 µs	9,175 (α), 2,729 (ε)	(1−)	α ≈ 100, ε < 2·10−7
216m1Fr	71 ns	0,086	(23/2)−	IT
217Fr	22 µs	8,469	9/2−	α
218Fr	1,0 ms	8,014	1−	α
218m1Fr	22,0 ms	8,1 (α), 0,086 (IT)		α ≈ 100, IT = ?
219Fr	20 ms	7,449	9/2−	α
220Fr	27,4 s	6,801 (α), 1,209 (β−)	1+	α ≈ 100, β− = 0,35
221Fr	4,9 min	6,458 (α), 2,033 (β−), 31,292 (14C)	5/2−	α ≈ 100, β− = ?, 14C = 8,8·10−11
222Fr	14,2 min	2,033	2−	β−
223Fr	21,8 min	1,149 (β−), 5,43 (α)	3/2(−)	β− ≈ 100, α = 0,006
224Fr	3,33 min	2,83	1−	β−
225Fr	4,0 min	1,866	3/2−	β−
226Fr	49 s	3,67	1−	β−
227Fr	2,47 min	2,49	1/2+	β−
228Fr	38 s	4,34	2−	β−
229Fr	50 s			β−
230Fr	19,1 s			β−
231Fr	17,5 s			β−
232Fr	5 s			β−

₈₈ Radium

Iso­top	Halbwerts­zeit	Zerfallsenergie (MeV)	Spin / Parität	Zerfallsart(en) (%)	Masse (u)
202Ra	0,7 ms		0+	α
203Ra	1,0 ms		(3/2−)	α ≈ 100
203m1Ra	33 ms		(13/2+)	α ≈ 100
204Ra	59 ms	7,65	0+	α ≈ 100
205Ra	210 ms	7,51 (α), 7,0 (εβ+)	(3/2−)	α = ?, εβ+ = ?
205m1Ra	170 ms		(13/2+)	α = ?
206Ra	0,24 s	7,416	0+	α ≈ 100
207Ra	1,3 s	7,27 (α), 6,4 (εβ+)	(5/2, 3/2)−	α ≈ 90, εβ+ ≈ 10
207m1Ra	55 ms	0,47 (IT), 7,74 (α), 6,87 (εβ+)	(13/2+)	IT ≈ 85, α ≈ 15, εβ+ ≈ 0,55
208Ra	1,3 s	7,273 (α), 4,33 (εβ+)	0+	α = 95, εβ+ = 5
209Ra	4,6 s		5/2−	α ≈ 90, εβ+ ≈ 10
210Ra	3,7 s	7,157 (α), 3,77 (εβ+)	0+	α ≈ 96, εβ+ ≈ 4
211Ra	13 s	7,046 (α), 5,0 (ε)	5/2(−)	α > 93, ε < 7
212Ra	13,0 s	6,859 (α), 3,35 (εβ+)	0+	α ≈ 85, εβ+ ≈ 15
213Ra	2,74 min	6,859 (α), 3,88 (εβ+)	1/2−	α = 80, εβ+ = 20
213m1Ra	2,1 ms	1,77 (IT), 8,628 (α)		IT ≈ 99, α ≈ 1
214Ra	2,46 s	7,273 (α), 1,059 (ε)	0+	α ≈ 100, ε = 0,059
215Ra	1,59 ms	8,864	(9/2+)	α
216Ra	182 ns	9,526 (α), 0,308 (ε)	0+	α ≈ 100, ε < 1·10−8
216m1Ra	<0,2 ns	1,507 (IT), 11,034 (α)	6+	α = 0,58
216m2Ra	1,24 ns	1,711 (IT), 11,237 (α)	8+	α = 1,86
216m3Ra	0,6 ns	2,026 (IT), 11,552 (α)	10+	α = 0,12
217Ra	1,6 µs	9,161	(9/2+)	α
218Ra	25,6 µs	8,546	0+	α
219Ra	10 ms	8,130	(7/2)+	α
220Ra	18 ms	7,595	0+	α
221Ra	28 s	6,886 (α), 32,395 (14C)	5/2+	α ≈ 100, 14C = 1,2·10−10
222Ra	38,0 s	6,681 (α), 33,049 (14C)	0+	α ≈ 100, 14C = 3,0·10−8
223Ra	11,435 d	5,979 (α), 31,828 (14C)	3/2+	α ≈ 100, 14C = 6,4·10−8
224Ra	3,66 d	5,789 (α), 30,535 (14C)	0+	α ≈ 100, 14C = 4,3·10−9
225Ra	14,9 d	0,357	1/2+	β−
226Ra	1602 a	4,871 (α), 28,196 (14C)	0+	α ≈ 100, 14C = 3,2·10−9
227Ra	42,2 min	1,325	3/2+	β−
228Ra	5,75 a	0,046	0+	β−
229Ra	4,0 min	1,76	5/2(+)	β−
230Ra	93 min	0,99	0+	β−
231Ra	103 s		(7/2−, 1/2+)	β−
232Ra	250 s		0+	β−
233Ra	30 s			β−
234Ra	30 s		0+	β−

₈₉ Actinium

Iso­top	Halbwerts­zeit	Zerfallsenergie (MeV)	Spin / Parität	Zerfallsart(en) (%)	Masse (u)
206Ac	22 ms		(3+)	α = ?
206m1Ac	33 ms		(10−)
207Ac	22 ms		(9/2−)	α ≈ 100
208Ac	95 ms		(3+)	α = ?
208m1Ac	25 ms		(10−)	α = ?
209Ac	0,10 s	7,73 (α), 7,11 (εβ+)	(9/2−)	α ≈ 99, εβ+ ≈ 1
210Ac	0,35 s	7,61 (α), 8,2 (εβ+)		α ≈ 96, εβ+ ≈ 4
211Ac	0,25 s	7,62		α ≈ 100
212Ac	0,93 s	7,52 (α), 7,48 (εβ+)		α ≈ 97, εβ+ ≈ 3
213Ac	0,80 s	7,5		α < 100
214Ac	8,2 s	7,35 (α), 6,34 (ε)		α > 89, ε < 11
215Ac	0,17 s	7,75 (α), 3,49 (εβ+)	9/2−	α ≈ 100, εβ+ = 0,09
216Ac	0,33 ms	9,243	(1−)	α
216m1Ac	0,33 ms	0,037 (IT), 9,28 (α)	(9−)	IT ≈ 100, α ≤ 2
217Ac	69 ns	9,832 (α), 2,819 (εβ+)	9/2−	α ≈ 100, εβ+ < 2
217m1Ac	740 ns		(29/2)+
218Ac	1,08 µs	9,38	(1−)	α
219Ac	11,8 µs	8,83 (α)	9/2−	α ≈ 100, εβ+ ≈ 1·10−6
220Ac	26,4 ms	8,35 (α), 3,48 (εβ+)	(3−)	α ≈ 100, εβ+ = 5·10−4
221Ac	52 ms	7,78	(3/2−)	α
222Ac	5,0 s	7,137 (α), 2,298 (εβ+)	1−	α = 99, εβ+ = 1
222m1Ac	63 s	7,137 (α), 0 (IT), 2,298 (εβ+)		α > 88, IT < 10, εβ+ < 0,7
223Ac	2,10 min	6,783 (α), 0,586 (ε), 33,064 (14C), 39,473 (15N)	(5/2−)	α ≈ 100, ε = 1, 14C = 3·10−9, 15N = 2·10−11
224Ac	2,78 h	1,403 (ε), 6,327 (α), 0,232 (β−)	0−	ε = 90,9$\left.^{+14}_{-10}\right.$, α = 9,1$\left.^{+20}_{-14}\right.$, β− < 1,6
225Ac	10,0 d	5,935 (α), 30,476 (14C)	(3/2−)	α ≈ 100, 14C = 6,0·10−10
226Ac	29,37 h	1,117 (β−), 0,64 (ε), 5,563 (α)	(1)	β− ≈ 83, ε = 17, α = 6·10−3
227Ac	21,773 a	0,045 (β−), 5,042 (α)	3/2−	β− ≈ 100, α = 1,380
228Ac	6,15 h	2,127	3+	β−
229Ac	62,7 min	1,1	(3/2+)	β−
230Ac	122 s	2,7	(1+)	β−
231Ac	7,5 min	2,1	(1/2+)	β−
232Ac	119 s	3,7	(1+)	β−
233Ac	145 s		(1/2+)	β−
234Ac	44 s			β−

₉₀ Thorium

Iso­top	Halbwerts­zeit	Zerfallsenergie (MeV)	Spin / Parität	Zerfallsart(en) (%)	NH (%)	Masse (u)
210Th	9 ms		0+	α ≈ 100
211Th	37 ms			α = ?, ε = ?
212Th	30 ms	7,952 (α), 4,76 (εβ+)	0+	α ≈ 100, εβ+ ≈ 0,3
213Th	140 ms	7,84		α < 100
214Th	100 ms	7,826	0+	α
215Th	1,2 s	7,666	(1/2−)	α
216Th	0,028 s	8,071 (α), 2,17 (εβ+)	0+	α ≈ 100, εβ+ ≈ 0,01
216m1Th	180 µs	2,028 (IT), 10,099 (α)	(8+, 11−)	IT ≈ 97, α ≈ 3
217Th	0,252 ms	9,424	(9/2+)	α
218Th	109 ns	9,849	0+	α
219Th	1,05 µs	9,51		α ≈ 100, εβ+ ≈ 1·10−7
220Th	9,7 µs	8,953 (α), 0,91 (εβ+)	0+	α ≈ 100, ε = 2·10−7
221Th	1,68 ms	8,628	(7/2+)	α
222Th	2,8 ms	8,129	0+	α
223Th	0,60 s	7,567	(5/2)+	α
224Th	1,05 s	7,304	0+	α
225Th	8,72 min	6,922 (α), 0,675 (ε)	(3/2)+	α ≈ 90, ε ≈ 10
226Th	30,57 min	6,451 (α), 15,3 (18O)	0+	α ≈ 100, 18O = 9,2·10−11
227Th	18,72 d	0,638 (γ), 6,051 (α)	(1/2+)	α
228Th	1,9116 a	0,087 (γ), 5,520 (α), 44,722 (20O)	0+	α ≈ 100, 20O = 1,13·10−11
229Th	7917 a	5,168	5/2+	α
230Th	7,538·104 a	0,2 (γ), 4,770 (α), 57,761 (24Ne)	0+	α ≈ 100, 24Ne = 5,6·10−11, SF < 3,8·10−12
231Th	25,52 h	0,085 (γ), 0,389 (β−), 4,213 (α)	5/2+	β− ≈ 100, α ≈ 1·10−8
232Th	1,405·1010 a	4,083 (α), 0,055 (γ), 54,509 (24Ne), 55,964 (26Ne)	0+	α ≈ 100, SF < 1,8·10−9, 24Ne = 2,8·10−10, 26Ne = 2,8·10−10	100
233Th	22,3 min	1,245	1/2+	β−
234Th	24,10 d	0,09 (γ), 0,273	0+	β−
235Th	7,1 min	1,93	(1/2+)	β−
236Th	37,5 min		0+	β−
237Th	5,0 min			β−

Quellen

Siehe auch Liste der Isotope#Weblinks

Liste der Isotope nach Ordnungszahl

bis 10 ∙ 11 bis 20 ∙ 21 bis 30 ∙ 31 bis 40 ∙ 41 bis 50 ∙ 51 bis 60 ∙ 61 bis 70 ∙ 71 bis 80 ∙ 81 bis 90 ∙ 91 bis 100 ∙ ab 101