Radyumun (88Ra) bilinen izotopları, 202Ra ile 234Ra aralığında ve tamamı radyoaktif olup toplamda 33 tanedir. Yarı ömrü 1600 yıl olan 226Ra en kararlı ve en yaygın bulunan radyum izotopudur.
İzotoplar
Nüklit | Tarihî adı | Z | İzotop kütlesi (Da) | Yarı ömür | Bozunma türü | Yavru izotop | Spin ve parite | İzotop çokluğu | |
---|---|---|---|---|---|---|---|---|---|
202Ra | 88 | 114 | 202,00989(7) | 2,6(21) ms [0,7(+33-3) ms] | 0+ | ||||
203Ra | 88 | 115 | 203,00927(9) | 4(3) ms | α | 199Rn | (3/2-) | ||
β+ (nadir) | 203Fr | ||||||||
203mRa | 220(90) keV | 41(17) ms | α | 199Rn | (13/2+) | ||||
β+ (nadir) | 203Fr | ||||||||
204Ra | 88 | 116 | 204,006500(17) | 60(11) ms [59(+12-9) ms] | α (%99,7) | 200Rn | 0+ | ||
β+ (%0,3) | 204Fr | ||||||||
205Ra | 88 | 117 | 205,00627(9) | 220(40) ms [210(+60-40) ms] | α | 201Rn | (3/2-) | ||
β+ (nadir) | 205Fr | ||||||||
205mRa | 310(110)# keV | 180(50) ms [170(+60-40) ms] | α | 201Rn | (13/2+) | ||||
İG (nadir) | 205Ra | ||||||||
206Ra | 88 | 118 | 206,003827(19) | 0,24(2) s | α | 202Rn | 0+ | ||
207Ra | 88 | 119 | 207,00380(6) | 1,3(2) s | α (%90) | 203Rn | (5/2-, 3/2-) | ||
β+ (%10) | 207Fr | ||||||||
207mRa | 560(50) keV | 57(8) ms | İG (%85) | 207Ra | (13/2+) | ||||
α (%15) | 203Rn | ||||||||
β+ (%0,55) | 207Fr | ||||||||
208Ra | 88 | 120 | 208,001840(17) | 1,3(2) s | α (%95) | 204Rn | 0+ | ||
β+ (%5) | 208Fr | ||||||||
208mRa | 1800(200) keV | 270 ns | (8+) | ||||||
209Ra | 88 | 121 | 209,00199(5) | 4,6(2) s | α (%90) | 205Rn | 5/2- | ||
β+ (%10) | 209Fr | ||||||||
210Ra | 88 | 122 | 210,000495(16) | 3,7(2) s | α (%96) | 206Rn | 0+ | ||
β+ (%4) | 210Fr | ||||||||
210mRa | 1800(200) keV | 2,24 μs | (8+) | ||||||
211Ra | 88 | 123 | 211,000898(28) | 13(2) s | α (%97) | 207Rn | 5/2(-) | ||
β+ (%3) | 211Fr | ||||||||
212Ra | 88 | 124 | 211,999794(12) | 13,0(2) s | α (%85) | 208Rn | 0+ | ||
β+ (%15) | 212Fr | ||||||||
212m1Ra | 1958,4(5) keV | 10,9(4) μs | (8)+ | ||||||
212m2Ra | 2613,4(5) keV | 0,85(13) μs | (11)- | ||||||
213Ra | 88 | 125 | 213,000384(22) | 2,74(6) dk | α (%80) | 209Rn | 1/2- | ||
β+ (%20) | 213Fr | ||||||||
213mRa | 1769(6) keV | 2,1(1) ms | İG (%99) | 213Ra | 17/2-# | ||||
α (%1) | 209Rn | ||||||||
214Ra | 88 | 126 | 214,000108(10) | 2,46(3) s | α (%99,94) | 210Rn | 0+ | ||
β+ (%0,06) | 214Fr | ||||||||
215Ra | 88 | 127 | 215,002720(8) | 1,55(7) ms | α | 211Rn | (9/2+)# | ||
215m1Ra | 1877,8(5) keV | 7,1(2) μs | (25/2+) | ||||||
215m2Ra | 2246,9(5) keV | 1,39(7) μs | (29/2-) | ||||||
215m3Ra | 3756,6(6)+X keV | 0,555(10) μs | (43/2-) | ||||||
216Ra | 88 | 128 | 216,003533(9) | 182(10) ns | α | 212Rn | 0+ | ||
EY (%1×10−8) | 216Fr | ||||||||
217Ra | 88 | 129 | 217,006320(9) | 1,63(17) μs | α | 213Rn | (9/2+) | ||
218Ra | 88 | 130 | 218,007140(12) | 25,2(3) μs | α | 214Rn | 0+ | ||
β+β+ (nadir) | 218Rn | ||||||||
219Ra | 88 | 131 | 219,010085(9) | 10(3) ms | α | 215Rn | (7/2)+ | ||
220Ra | 88 | 132 | 220,011028(10) | 17,9(14) ms | α | 216Rn | 0+ | ||
221Ra | 88 | 133 | 221,013917(5) | 28(2) s | α | 217Rn | 5/2+ | Eser | |
(%1,2×10−10) | 207Pb 14C | ||||||||
222Ra | 88 | 134 | 222,015375(5) | 38,0(5) s | α | 218Rn | 0+ | ||
KB (%3×10−8) | 208Pb 14C | ||||||||
Actinium X | 88 | 135 | 223,0185022(27) | 11,43(5) g | α | 219Rn | 3/2+ | Eser | |
KB (%6,4×10−8) | 209Pb 14C | ||||||||
224Ra | Thorium X | 88 | 136 | 224,0202118(24) | 3,6319(23) g | α | 220Rn | 0+ | Eser |
KB (%4,3×10−9) | 210Pb 14C | ||||||||
225Ra | 88 | 137 | 225,023612(3) | 14,9(2) g | β- | 225Ac | 1/2+ | Eser | |
226Ra | Radyum | 88 | 138 | 226,0254098(25) | 1600(7) y | α | 222Rn | 0+ | Eser |
β-β- (nadir) | 226Th | ||||||||
KB (%2,6×10−9) | 212Pb 14C | ||||||||
227Ra | 88 | 139 | 227,0291778(25) | 42,2(5) dk | β- | 227Ac | 3/2+ | ||
228Ra | Mezotoryum 1 | 88 | 140 | 228,0310703(26) | 5,75(3) y | β- | 228Ac | 0+ | Eser |
229Ra | 88 | 141 | 229,034958(20) | 4,0(2) dk | β- | 229Ac | 5/2(+) | ||
230Ra | 88 | 142 | 230,037056(13) | 93(2) dk | β- | 230Ac | 0+ | ||
231Ra | 88 | 143 | 231,04122(32)# | 103(3) s | β- | 231Ac | (5/2+) | ||
231mRa | 66,21(9) keV | ~53 μs | (1/2+) | ||||||
232Ra | 88 | 144 | 232,04364(30)# | 250(50) s | β- | 232Ac | 0+ | ||
233Ra | 88 | 145 | 233,04806(50)# | 30(5) s | β- | 233Ac | 1/2+# | ||
234Ra | 88 | 146 | 234,05070(53)# | 30(10) s | β- | 234Ac | 0+ |
Notlar
- # ile işaretlenen değerler tamamen deneyler sonucu elde edilen veriler değildir ve kısmen sistematik eğilimle göre belirlenmiştir.
Kaynakça
- ^ ; Böhlke, John Karl; De Bièvre, Paul; Hidaka, Hiroshi; Peiser, H. Steffen; Rosman, Kevin J. R.; Taylor, Philip D. P. (2003). "Atomic weights of the elements. Review 2000 (IUPAC Technical Report)". Pure and Applied Chemistry. 75 (6): 683-800. doi:10.1351/pac200375060683.
- ^ Wieser, Michael E. (2006). "Atomic weights of the elements 2005 (IUPAC Technical Report)". Pure and Applied Chemistry (İngilizce). 78 (11): 2051-2066. doi:10.1351/pac200678112051. Diğer özet.
- ^ Holden, Norman E. (2004). "11. Table of the Isotopes". Lide, David R. (Ed.). (İngilizce) (85. bas.). Boca Raton, Florida: CRC Press. ISBN .
- ^ Audi, Georges; Bersillon, Olivier; Blachot, Jean; Wapstra, Aaldert Hendrik (2003), "The NUBASE evaluation of nuclear and decay properties", Nuclear Physics A (İngilizce), cilt 729, ss. 3-128, Bibcode:2003NuPhA.729....3A, doi:10.1016/j.nuclphysa.2003.11.001, 2 Nisan 2015 tarihinde kaynağından , erişim tarihi: 11 Mayıs 2021
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Radyumun 88Ra bilinen izotoplari 202Ra ile 234Ra araliginda ve tamami radyoaktif olup toplamda 33 tanedir Yari omru 1600 yil olan 226Ra en kararli ve en yaygin bulunan radyum izotopudur IzotoplarNuklit Tarihi adi Z Izotop kutlesi Da Yari omur Bozunma turu Yavru izotop Spin ve parite Izotop coklugu202Ra 88 114 202 00989 7 2 6 21 ms 0 7 33 3 ms 0 203Ra 88 115 203 00927 9 4 3 ms a 199Rn 3 2 b nadir 203Fr203mRa 220 90 keV 41 17 ms a 199Rn 13 2 b nadir 203Fr204Ra 88 116 204 006500 17 60 11 ms 59 12 9 ms a 99 7 200Rn 0 b 0 3 204Fr205Ra 88 117 205 00627 9 220 40 ms 210 60 40 ms a 201Rn 3 2 b nadir 205Fr205mRa 310 110 keV 180 50 ms 170 60 40 ms a 201Rn 13 2 IG nadir 205Ra206Ra 88 118 206 003827 19 0 24 2 s a 202Rn 0 207Ra 88 119 207 00380 6 1 3 2 s a 90 203Rn 5 2 3 2 b 10 207Fr207mRa 560 50 keV 57 8 ms IG 85 207Ra 13 2 a 15 203Rnb 0 55 207Fr208Ra 88 120 208 001840 17 1 3 2 s a 95 204Rn 0 b 5 208Fr208mRa 1800 200 keV 270 ns 8 209Ra 88 121 209 00199 5 4 6 2 s a 90 205Rn 5 2 b 10 209Fr210Ra 88 122 210 000495 16 3 7 2 s a 96 206Rn 0 b 4 210Fr210mRa 1800 200 keV 2 24 ms 8 211Ra 88 123 211 000898 28 13 2 s a 97 207Rn 5 2 b 3 211Fr212Ra 88 124 211 999794 12 13 0 2 s a 85 208Rn 0 b 15 212Fr212m1Ra 1958 4 5 keV 10 9 4 ms 8 212m2Ra 2613 4 5 keV 0 85 13 ms 11 213Ra 88 125 213 000384 22 2 74 6 dk a 80 209Rn 1 2 b 20 213Fr213mRa 1769 6 keV 2 1 1 ms IG 99 213Ra 17 2 a 1 209Rn214Ra 88 126 214 000108 10 2 46 3 s a 99 94 210Rn 0 b 0 06 214Fr215Ra 88 127 215 002720 8 1 55 7 ms a 211Rn 9 2 215m1Ra 1877 8 5 keV 7 1 2 ms 25 2 215m2Ra 2246 9 5 keV 1 39 7 ms 29 2 215m3Ra 3756 6 6 X keV 0 555 10 ms 43 2 216Ra 88 128 216 003533 9 182 10 ns a 212Rn 0 EY 1 10 8 216Fr217Ra 88 129 217 006320 9 1 63 17 ms a 213Rn 9 2 218Ra 88 130 218 007140 12 25 2 3 ms a 214Rn 0 b b nadir 218Rn219Ra 88 131 219 010085 9 10 3 ms a 215Rn 7 2 220Ra 88 132 220 011028 10 17 9 14 ms a 216Rn 0 221Ra 88 133 221 013917 5 28 2 s a 217Rn 5 2 Eser 1 2 10 10 207Pb 14C222Ra 88 134 222 015375 5 38 0 5 s a 218Rn 0 KB 3 10 8 208Pb 14CActinium X 88 135 223 0185022 27 11 43 5 g a 219Rn 3 2 EserKB 6 4 10 8 209Pb 14C224Ra Thorium X 88 136 224 0202118 24 3 6319 23 g a 220Rn 0 EserKB 4 3 10 9 210Pb 14C225Ra 88 137 225 023612 3 14 9 2 g b 225Ac 1 2 Eser226Ra Radyum 88 138 226 0254098 25 1600 7 y a 222Rn 0 Eserb b nadir 226ThKB 2 6 10 9 212Pb 14C227Ra 88 139 227 0291778 25 42 2 5 dk b 227Ac 3 2 228Ra Mezotoryum 1 88 140 228 0310703 26 5 75 3 y b 228Ac 0 Eser229Ra 88 141 229 034958 20 4 0 2 dk b 229Ac 5 2 230Ra 88 142 230 037056 13 93 2 dk b 230Ac 0 231Ra 88 143 231 04122 32 103 3 s b 231Ac 5 2 231mRa 66 21 9 keV 53 ms 1 2 232Ra 88 144 232 04364 30 250 50 s b 232Ac 0 233Ra 88 145 233 04806 50 30 5 s b 233Ac 1 2 234Ra 88 146 234 05070 53 30 10 s b 234Ac 0 Notlar a b 237Np nin ara bozunma urunudur 235U nun ara bozunma urunudur a b nin ara bozunma urunudur Elementin isminin kaynagidir 238U nun ara bozunma urunudur ile isaretlenen degerler tamamen deneyler sonucu elde edilen veriler degildir ve kismen sistematik egilimle gore belirlenmistir Kaynakca Bohlke John Karl De Bievre Paul Hidaka Hiroshi Peiser H Steffen Rosman Kevin J R Taylor Philip D P 2003 Atomic weights of the elements Review 2000 IUPAC Technical Report Pure and Applied Chemistry 75 6 683 800 doi 10 1351 pac200375060683 Wieser Michael E 2006 Atomic weights of the elements 2005 IUPAC Technical Report Pure and Applied Chemistry Ingilizce 78 11 2051 2066 doi 10 1351 pac200678112051 Diger ozet Holden Norman E 2004 11 Table of the Isotopes Lide David R Ed Ingilizce 85 bas Boca Raton Florida CRC Press ISBN 978 0 8493 0485 9 Audi Georges Bersillon Olivier Blachot Jean Wapstra Aaldert Hendrik 2003 The NUBASE evaluation of nuclear and decay properties Nuclear Physics A Ingilizce cilt 729 ss 3 128 Bibcode 2003NuPhA 729 3A doi 10 1016 j nuclphysa 2003 11 001 2 Nisan 2015 tarihinde kaynagindan erisim tarihi 11 Mayis 2021