Isotopes of radon

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Lua error in package.lua at line 80: module 'Module:Hatnote list' not found. Template:Short description Template:Infobox radon isotopes There are 39 known isotopes of radon (86Rn), from 193Rn to 231Rn; all are radioactive. The most stable isotope is 222Rn with a half-life of 3.8215 days, which decays into 218
Po.

Six isotopes of radon, 217-222Rn, occur in trace quantities in nature as decay products of, respectively, 217At, 218At, 223Ra, 224Ra, 225Ra, and 226Ra. 217Rn and 221Rn are produced in rare branches in the decay chain of trace quantities of 237Np; 222Rn (and also 218Rn in a rare branch) is an intermediate step in the decay chain of 238U; 219Rn is an intermediate step in the decay chain of 235U; and 220Rn occurs in the decay chain of 232Th.

List of isotopes

Template:Isotopes table |-id=Radon-193 | 193Rn | | style="text-align:right" | 86 | style="text-align:right" | 107 | 193.009708(27) | style="text-align:center" | 2006 | 1.15(27) ms | α | 189Po | (3/2−) | |-id=Radon-194 | 194Rn | | style="text-align:right" | 86 | style="text-align:right" | 108 | 194.006146(18) | style="text-align:center" | 2006 | 780(160) μs | α | 190Po | 0+ | |-id=Radon-195 | 195Rn | | style="text-align:right" | 86 | style="text-align:right" | 109 | 195.005422(55) | style="text-align:center" | 2001 | 7(3) ms | α | 191Po | 3/2− | |-id=Radon-195m | style="text-indent:1em" | 195mRn[n 1] | | colspan="3" style="text-indent:2em" | 80(50) keV | style="text-align:center" | 2001 | 6(3) ms | α | 191Po | 13/2+ | |-id=Radon-196 | 196Rn | | style="text-align:right" | 86 | style="text-align:right" | 110 | 196.002120(15) | style="text-align:center" | 1995 | 4.7(11) ms | α | 192Po | 0+ | |-id=Radon-197 | 197Rn | | style="text-align:right" | 86 | style="text-align:right" | 111 | 197.001621(17) | style="text-align:center" | 1995 | 54(6) ms | α | 193Po | 3/2− | |-id=Radon-197m | style="text-indent:1em" | 197mRn | | colspan="3" style="text-indent:2em" | 199(11) keV | style="text-align:center" | 1995 | 25.6(25) ms | α | 193Po | 13/2+ | |-id=Radon-198 | 198Rn | | style="text-align:right" | 86 | style="text-align:right" | 112 | 197.998679(14) | style="text-align:center" | 1984 | 64.4(16) ms | α | 194Po | 0+ | |-id=Radon-199 | 199Rn | | style="text-align:right" | 86 | style="text-align:right" | 113 | 198.9983254(78) | style="text-align:center" | 1980 | 590(30) ms | α | 195Po | 3/2− | |-id=Radon-199m | style="text-indent:1em" | 199mRn | | colspan="3" style="text-indent:2em" | 220(11) keV | style="text-align:center" | 1980 | 310(20) ms | α | 195Po | 13/2+ | |-id=Radon-200 | 200Rn | | style="text-align:right" | 86 | style="text-align:right" | 114 | 199.9957053(62) | style="text-align:center" | 1971 | 1.09(16) s | α | 196Po | 0+ | |-id=Radon-200m | style="text-indent:1em" | 200mRn | | colspan="3" style="text-indent:2em" | 2320(20)# keV | style="text-align:center" | 2002 | 28(9) μs | IT | 200Rn | | |-id=Radon-201 | 201Rn | | style="text-align:right" | 86 | style="text-align:right" | 115 | 200.995591(11) | style="text-align:center" | 1967 | 7.0(4) s | α | 197Po | 3/2− | |-id=Radon-201m | style="text-indent:1em" | 201mRn | | colspan="3" style="text-indent:2em" | 245(12) keV | style="text-align:center" | 1971 | 3.8(1) s | α | 197Po | 13/2+ | |-id=Radon-202 | rowspan=2|202Rn | rowspan=2| | rowspan=2 style="text-align:right" | 86 | rowspan=2 style="text-align:right" | 116 | rowspan=2|201.993264(19) | rowspan=2 style="text-align:center" | 1967 | rowspan=2|9.7(1) s | α (78%) | 198Po | rowspan=2|0+ | rowspan=2| |- | β+ (22%) | 202At |-id=Radon-202m | style="text-indent:1em" | 202mRn | | colspan="3" style="text-indent:2em" | 2310(50)# keV | style="text-align:center" | 2002 | 2.22(7) μs | IT | 202Rn | 11−# | |-id=Radon-203 | rowspan=2|203Rn | rowspan=2| | rowspan=2 style="text-align:right" | 86 | rowspan=2 style="text-align:right" | 117 | rowspan=2|202.9933612(62) | rowspan=2 style="text-align:center" | 1967 | rowspan=2|44.2(16) s | α (66%) | 199Po | rowspan=2|3/2− | rowspan=2| |- | β+ (34%) | 203At |-id=Radon-203m | rowspan=2 style="text-indent:1em" | 203mRn | rowspan=2| | rowspan=2 colspan="3" style="text-indent:2em" | 362(4) keV | rowspan=2 style="text-align:center" | 1967 | rowspan=2|26.9(5) s | α (75%) | 199Po | rowspan=2|13/2+ | rowspan=2| |- | β+ (25%) | 203At |-id=Radon-204 | rowspan=2|204Rn | rowspan=2| | rowspan=2 style="text-align:right" | 86 | rowspan=2 style="text-align:right" | 118 | rowspan=2|203.9914437(80) | rowspan=2 style="text-align:center" | 1967 | rowspan=2|1.242(23) min | α (72.4%) | 200Po | rowspan=2|0+ | rowspan=2| |- | β+ (27.6%) | 204At |-id=Radon-205 | rowspan=2|205Rn | rowspan=2| | rowspan=2 style="text-align:right" | 86 | rowspan=2 style="text-align:right" | 119 | rowspan=2|204.9917232(55) | rowspan=2 style="text-align:center" | 1967 | rowspan=2|170(4) s | β+ (75.4%) | 205At | rowspan=2|5/2− | rowspan=2| |- | α (24.6%) | 201Po |-id=Radon-205m | style="text-indent:1em" | 205mRn | | colspan="3" style="text-indent:2em" | 657.1(5) keV | style="text-align:center" | 2010 | >10 s | IT | 205Rn | 13/2+# | |-id=Radon-206 | rowspan=2|206Rn | rowspan=2| | rowspan=2 style="text-align:right" | 86 | rowspan=2 style="text-align:right" | 120 | rowspan=2|205.9901954(92) | rowspan=2 style="text-align:center" | 1954 | rowspan=2|5.67(17) min | α (62%) | 202Po | rowspan=2|0+ | rowspan=2| |- | β+ (38%) | 206At |-id=Radon-207 | rowspan=2|207Rn | rowspan=2| | rowspan=2 style="text-align:right" | 86 | rowspan=2 style="text-align:right" | 121 | rowspan=2|206.9907302(51) | rowspan=2 style="text-align:center" | 1954 | rowspan=2|9.25(17) min | β+ (79%) | 207At | rowspan=2|5/2− | rowspan=2| |- | α (21%) | 203Po |-id=Radon-207m | style="text-indent:1em" | 207mRn | | colspan="3" style="text-indent:2em" | 899.1(10) keV | style="text-align:center" | 1974 | 184.5(9) μs | IT | 207Rn | 13/2+ | |-id=Radon-208 | rowspan=2|208Rn | rowspan=2| | rowspan=2 style="text-align:right" | 86 | rowspan=2 style="text-align:right" | 122 | rowspan=2|207.989635(11) | rowspan=2 style="text-align:center" | 1955 | rowspan=2|24.35(14) min | α (62%) | 204Po | rowspan=2|0+ | rowspan=2| |- | β+ (38%) | 208At |-id=Radon-208m | style="text-indent:1em" | 208mRn | | colspan="3" style="text-indent:2em" | 1828.3(4) keV | style="text-align:center" | 1981 | 487(12) ns | IT | 208Rn | 8+ | |-id=Radon-209 | rowspan=2|209Rn | rowspan=2| | rowspan=2 style="text-align:right" | 86 | rowspan=2 style="text-align:right" | 123 | rowspan=2|208.990401(11) | rowspan=2 style="text-align:center" | 1952 | rowspan=2|28.8(10) min | β+ (83%) | 209At | rowspan=2|5/2− | rowspan=2| |- | α (17%) | 205Po |-id=Radon-209m1 | style="text-indent:1em" | 209m1Rn | | colspan="3" style="text-indent:2em" | 1174.01(13) keV | style="text-align:center" | 1985 | 13.4(13) μs | IT | 209Rn | 13/2+ | |-id=Radon-209m2 | style="text-indent:1em" | 209m2Rn | | colspan="3" style="text-indent:2em" | 3636.81(23) keV | style="text-align:center" | 1985 | 3.0(3) μs | IT | 209Rn | 35/2+ | |-id=Radon-210 | rowspan=2|210Rn | rowspan=2| | rowspan=2 style="text-align:right" | 86 | rowspan=2 style="text-align:right" | 124 | rowspan=2|209.9896889(49) | rowspan=2 style="text-align:center" | 1952 | rowspan=2|2.4(1) h | α (96%) | 206Po | rowspan=2|0+ | rowspan=2| |- | β+ (4%) | 210At |-id=Radon-210m1 | style="text-indent:1em" | 210m1Rn | | colspan="3" style="text-indent:2em" | 1710(30) keV | style="text-align:center" | 1979 | 644(40) ns | IT | 210Rn | 8+ | |-id=Radon-210m2 | style="text-indent:1em" | 210m2Rn | | colspan="3" style="text-indent:2em" | 3857(30) keV | style="text-align:center" | 1979 | 1.06(5) μs | IT | 210Rn | 17− | |-id=Radon-210m3 | style="text-indent:1em" | 210m3Rn | | colspan="3" style="text-indent:2em" | 6514(30) keV | style="text-align:center" | 1979 | 1.04(7) μs | IT | 210Rn | 23+ | |-id=Radon-211 | rowspan=2|211Rn | rowspan=2| | rowspan=2 style="text-align:right" | 86 | rowspan=2 style="text-align:right" | 125 | rowspan=2|210.9906008(73) | rowspan=2 style="text-align:center" | 1952 | rowspan=2|14.6(2) h | β+ (72.6%) | 211At | rowspan=2|1/2− | rowspan=2| |- | α (27.4%) | 207Po |-id=Radon-211m1 | style="text-indent:1em" | 211m1Rn | | colspan="3" style="text-indent:2em" | 1603(14)# keV | style="text-align:center" | 1981 | 596(28) ns | IT | 211Rn | 17/2− | |-id=Radon-211m2 | style="text-indent:1em" | 211m2Rn | | colspan="3" style="text-indent:2em" | 8905(20)# keV | style="text-align:center" | 1985 | 201(4) ns | IT | 211Rn | 63/2− | |-id=Radon-212 |212Rn | |style="text-align:right" | 86 |style="text-align:right" | 126 |211.9907039(33) | style="text-align:center" | 1950 |23.9(12) min | α | 208Po |0+ | |-id=Radon-212m1 | style="text-indent:1em" | 212m1Rn | | colspan="3" style="text-indent:2em" | 1639.68(15) keV | style="text-align:center" | 1977 | 118(14) ns | IT | 212Rn | 6+ | |-id=Radon-212m2 | style="text-indent:1em" | 212m2Rn | | colspan="3" style="text-indent:2em" | 1694.1(3) keV | style="text-align:center" | 1975 | 910(30) ns | IT | 212Rn | 8+ | |-id=Radon-212m3 | style="text-indent:1em" | 212m3Rn | | colspan="3" style="text-indent:2em" | 6174.2(3) keV | style="text-align:center" | 1977 | 102(4) ns | IT | 212Rn | 22+ | |-id=Radon-212m4 | style="text-indent:1em" | 212m4Rn | | colspan="3" style="text-indent:2em" | 8579.2(4) keV | style="text-align:center" | 1977 | 154(14) ns | IT | 212Rn | 30+ | |-id=Radon-213 | 213Rn | | style="text-align:right" | 86 | style="text-align:right" | 127 | 212.9938851(36) | style="text-align:center" | 1966 | 19.5(1) ms | α[n 2] | 209Po | 9/2+# | |-id=Radon-213m1 | style="text-indent:1em" | 213m1Rn | | colspan="3" style="text-indent:2em" | 1682(10) keV | style="text-align:center" | 1983 | 1.00(21) μs | IT | 213Rn | (25/2+) | |-id=Radon-213m2 | style="text-indent:1em" | 213m2Rn | | colspan="3" style="text-indent:2em" | 2205(10) keV | style="text-align:center" | 1983 | 1.36(7) μs | IT | 213Rn | (31/2−) | |-id=Radon-213m3 | style="text-indent:1em" | 213m3Rn | | colspan="3" style="text-indent:2em" | 5965(14) keV | style="text-align:center" | 1988 | 164(11) ns | IT | 213Rn | (55/2+) | |-id=Radon-214 |214Rn | | style="text-align:right" | 86 |style="text-align:right" | 128 |213.9953627(99) | style="text-align:center" | 1970 |259(3) ns | α | 210Po |0+ | |-id=Radon-214m | style="text-indent:1em" | 214mRn | | colspan="3" style="text-indent:2em" | 4595.4(18) keV | style="text-align:center" | 1983 | 245(30) ns |IT |214Rn | (22+) | |-id=Radon-215 | 215Rn | | style="text-align:right" | 86 | style="text-align:right" | 129 | 214.9987450(65) | style="text-align:center" | 1952 | 2.30(10) μs | α[n 3] | 211Po | 9/2+ | |-id=Radon-216 | 216Rn | | style="text-align:right" | 86 | style="text-align:right" | 130 | 216.0002719(62) | style="text-align:center" | 1949 | 29(4) μs | α | 212Po | 0+ | |-id=Radon-217 | 217Rn | | style="text-align:right" | 86 | style="text-align:right" | 131 | 217.0039276(45) | style="text-align:center" | 1949 | 593(38) μs | α | 213Po | 9/2+ | Trace[n 4] |-id=Radon-218 | 218Rn | | style="text-align:right" | 86 | style="text-align:right" | 132 | 218.0056011(25) | style="text-align:center" | 1948 | 33.75(15) ms | α | 214Po | 0+ | Trace[n 5] |-id=Radon-219 | 219Rn | Actinon
Actinium emanation | style="text-align:right" | 86 | style="text-align:right" | 133 | 219.0094787(23) | style="text-align:center" | 1903 | 3.96(1) s | α[n 6] | 215Po | 5/2+ | Trace[n 7] |-id=Radon-220 |220Rn |Thoron
Thorium emanation | style="text-align:right" | 86 | style="text-align:right" | 134 | 220.0113924(19) | style="text-align:center" | 1900 |55.6(1) s | α[n 8] | 216Po |0+ |Trace[n 9] |-id=Radon-221 | rowspan=2|221Rn | rowspan=2| | rowspan=2 style="text-align:right" | 86 | rowspan=2 style="text-align:right" | 135 | rowspan=2|221.0155356(61) | rowspan=2 style="text-align:center" | 1956 | rowspan=2|25.7(5) min | β− (78%) | 221Fr | rowspan=2|7/2+ | rowspan=2|Trace[n 4] |- | α (22%) | 217Po |-id=Radon-222 | 222Rn[n 10] | Radon[n 11]
Radium emanation
Emanation
Emanon
Niton | style="text-align:right" | 86 | style="text-align:right" | 136 | 222.0175760(21) | style="text-align:center" | 1899 | 3.8215(2) d | α[n 12] | 218Po | 0+ | Trace[n 5] |-id=Radon-223 | 223Rn | | style="text-align:right" | 86 | style="text-align:right" | 137 | 223.0218893(84) | style="text-align:center" | 1964 | 24.3(4) min | β−[n 13] | 223Fr | 7/2+ | |-id=Radon-224 | 224Rn | | style="text-align:right" | 86 | style="text-align:right" | 138 | 224.024096(11) | style="text-align:center" | 1964 | 107(3) min | β− | 224Fr | 0+ | |-id=Radon-225 | 225Rn | | style="text-align:right" | 86 | style="text-align:right" | 139 | 225.028486(12) | style="text-align:center" | 1969 | 4.66(4) min | β− | 225Fr | 7/2− | |-id=Radon-226 | 226Rn | | style="text-align:right" | 86 | style="text-align:right" | 140 | 226.030861(11) | style="text-align:center" | 1969 | 7.4(1) min | β− | 226Fr | 0+ | |-id=Radon-227 | 227Rn | | style="text-align:right" | 86 | style="text-align:right" | 141 | 227.035304(15) | style="text-align:center" | 1986 | 20.2(4) s | β− | 227Fr | (3/2+) | |-id=Radon-228 | 228Rn | | style="text-align:right" | 86 | style="text-align:right" | 142 | 228.037835(19) | style="text-align:center" | 1989 | 65(2) s | β− | 228Fr | 0+ | |-id=Radon-229 | 229Rn | | style="text-align:right" | 86 | style="text-align:right" | 143 | 229.042257(14) | style="text-align:center" | 2009 | 11.9(13) s | β− | 229Fr | (5/2+) | |-id=Radon-230 | 230Rn | | style="text-align:right" | 86 | style="text-align:right" | 144 | 230.04527(22)# | style="text-align:center" | 2010 | 24# s
[>300 ns] | | | 0+ | |-id=Radon-231 | 231Rn | | style="text-align:right" | 86 | style="text-align:right" | 145 | 231.04997(32)# | style="text-align:center" | 2010 | 2# s
[>300 ns] | | | 1/2+# | |-id=Radon-232 | 232Rn | | style="text-align:right" | 86 | style="text-align:right" | 146 | | style="text-align:center" | (2010) | | | | | Template:Isotopes table/footer

References

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  1. ^ Page Module:Citation/CS1/styles.css has no content."Adopted Levels for 213Rn" (PDF). NNDC Chart of Nuclides.
  2. ^ Page Module:Citation/CS1/styles.css has no content."Adopted Levels for 215Rn" (PDF). NNDC Chart of Nuclides.
  3. ^ Page Module:Citation/CS1/styles.css has no content.Takahashi, Kohji; Yamada, Masami; Kondoh, Takayoshi (August 1973). "Beta-decay half-lives calculated on the gross theory". Atomic Data and Nuclear Data Tables. 12 (1): 101–142. Bibcode:1973ADNDT..12..101T. doi:10.1016/0092-640X(73)90015-6.
  4. ^ Page Module:Citation/CS1/styles.css has no content.Belli, P.; Bernabei, R.; Cappella, C.; Caracciolo, V.; Cerulli, R.; Danevich, F.A.; Di Marco, A.; Incicchitti, A.; Poda, D.V.; Polischuk, O.G.; Tretyak, V.I. (2014). "Investigation of rare nuclear decays with BaF2 crystal scintillator contaminated by radium". European Physical Journal A. 50 (9): 134–143. arXiv:1407.5844. Bibcode:2014EPJA...50..134B. doi:10.1140/epja/i2014-14134-6. S2CID 118513731.
  5. ^ Page Module:Citation/CS1/styles.css has no content.Sun, Xiao-Dong; Duan, Chao; Deng, Jun-Gang; Guo, Ping; Li, Xiao-Hua (2017-01-18). "Systematic study of α decay for odd-A nuclei within a two-potential approach". Physical Review C. 95 (1) 014319. American Physical Society. arXiv:1903.07301. Bibcode:2017PhRvC..95a4319S. doi:10.1103/PhysRevC.95.014319.
  6. ^ Page Module:Citation/CS1/styles.css has no content."Adopted Levels for 223Rn" (PDF). NNDC Chart of Nuclides.
  • Isotope masses from:
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  • Half-life, spin, and isomer data selected from the following sources.

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