Table
| nuclide symbol |
historic name |
Z(p) | N(n) | isotopic mass (u) |
half-life | decay mode(s) |
daughter isotope(s) |
nuclear spin |
representative isotopic composition (mole fraction) |
range of natural variation (mole fraction) |
|---|---|---|---|---|---|---|---|---|---|---|
| excitation energy | ||||||||||
| 195Rn | 86 | 109 | 195.00544(5) | 6 ms | 3/2-# | |||||
| 195mRn | 50(50) keV | 6 ms | 13/2+# | |||||||
| 196Rn | 86 | 110 | 196.002115(16) | 4.7(11) ms |
α | 192Po | 0+ | |||
| β+ (rare) | 196At | |||||||||
| 197Rn | 86 | 111 | 197.00158(7) | 66(16) ms |
α | 193Po | 3/2-# | |||
| β+ (rare) | 197At | |||||||||
| 197mRn | 200(60)# keV | 21(5) ms |
α | 193Po | (13/2+) | |||||
| β+ (rare) | 197At | |||||||||
| 198Rn | 86 | 112 | 197.998679(14) | 65(3) ms | α (99%) | 194Po | 0+ | |||
| β+ (1%) | 198At | |||||||||
| 199Rn | 86 | 113 | 198.99837(7) | 620(30) ms | α (94%) | 195Po | 3/2-# | |||
| β+ (6%) | 199At | |||||||||
| 199mRn | 180(70) keV | 320(20) ms | α (97%) | 195Po | 13/2+# | |||||
| β+ (3%) | 199At | |||||||||
| 200Rn | 86 | 114 | 199.995699(14) | 0.96(3) s | α (98%) | 196Po | 0+ | |||
| β+ (2%) | 200At | |||||||||
| 201Rn | 86 | 115 | 200.99563(8) | 7.0(4) s | α (80%) | 197Po | (3/2-) | |||
| β+ (20%) | 201At | |||||||||
| 201mRn | 280(90)# keV | 3.8(1) s | α (90%) | 197Po | (13/2+) | |||||
| β+ (10%) | 201At | |||||||||
| IT (<1%) | 201Rn | |||||||||
| 202Rn | 86 | 116 | 201.993263(19) | 9.94(18) s | α (85%) | 198Po | 0+ | |||
| β+ (15%) | 202At | |||||||||
| 203Rn | 86 | 117 | 202.993387(25) | 44.2(16) s | α (66%) | 199Po | (3/2-) | |||
| β+ (34%) | 203At | |||||||||
| 203mRn | 363(4) keV | 26.7(5) s | α (80%) | 199Po | 13/2(+) | |||||
| β+ (20%) | 203At | |||||||||
| 204Rn | 86 | 118 | 203.991429(16) | 1.17(18) min | α (73%) | 200Po | 0+ | |||
| β+ (27%) | 204At | |||||||||
| 205Rn | 86 | 119 | 204.99172(5) | 170(4) s | β+ (77%) | 205At | 5/2- | |||
| α (23%) | 201Po | |||||||||
| 206Rn | 86 | 120 | 205.990214(16) | 5.67(17) min | α (62%) | 202Po | 0+ | |||
| β+ (38%) | 206At | |||||||||
| 207Rn | 86 | 121 | 206.990734(28) | 9.25(17) min | β+ (79%) | 207At | 5/2- | |||
| α (21%) | 203Po | |||||||||
| 207mRn | 899.0(10) keV | 181(18) µs | (13/2+) | |||||||
| 208Rn | 86 | 122 | 207.989642(12) | 24.35(14) min | α (62%) | 204Po | 0+ | |||
| β+ (38%) | 208At | |||||||||
| 209Rn | 86 | 123 | 208.990415(21) | 28.5(10) min | β+ (83%) | 209At | 5/2- | |||
| α (17%) | 205Po | |||||||||
| 209m1Rn | 1173.98(13) keV | 13.4(13) µs | 13/2+ | |||||||
| 209m2Rn | 3636.78(23) keV | 3.0(3) µs | (35/2+) | |||||||
| 210Rn | 86 | 124 | 209.989696(9) | 2.4(1) h | α (96%) | 206Po | 0+ | |||
| β+ (4%) | 210At | |||||||||
| 210m1Rn | 1690(15) keV | 644(40) ns | 8+# | |||||||
| 210m2Rn | 3837(15) keV | 1.06(5) µs | (17)- | |||||||
| 210m3Rn | 6493(15) keV | 1.04(7) µs | (22)+ | |||||||
| 211Rn | 86 | 125 | 210.990601(7) | 14.6(2) h | α (72.6%) | 207Po | 1/2- | |||
| β+ (27.4%) | 211At | |||||||||
| 212Rn | 86 | 126 | 211.990704(3) | 23.9(12) min | α | 208Po | 0+ | |||
| β+β+ (rare) | 212Po | |||||||||
| 213Rn | 86 | 127 | 212.993883(6) | 19.5(1) ms | α | 209Po | (9/2+) | |||
| 214Rn | 86 | 128 | 213.995363(10) | 0.27(2) µs | α | 210Po | 0+ | |||
| β+β+ (rare) | 214Po | |||||||||
| 214mRn | 4595.4 keV | 245(30) ns | (22+) | |||||||
| 215Rn | 86 | 129 | 214.998745(8) | 2.30(10) µs | α | 211Po | 9/2+ | |||
| 216Rn | 86 | 130 | 216.000274(8) | 45(5) µs | α | 212Po | 0+ | |||
| 217Rn | 86 | 131 | 217.003928(5) | 0.54(5) ms | α | 213Po | 9/2+ | |||
| 218Rn | 86 | 132 | 218.0056013(25) | 35(5) ms | α | 214Po | 0+ | Trace | ||
| 219Rn | Actinon Actinium emanation |
86 | 133 | 219.0094802(27) | 3.96(1) s | α | 215Po | 5/2+ | Trace | |
| 220Rn | Thoron Thorium emanation |
86 | 134 | 220.0113940(24) | 55.6(1) s | α | 216Po | 0+ | Trace | |
| β-β- (rare) | 220Ra | |||||||||
| 221Rn | 86 | 135 | 221.015537(6) | 25.7(5) min | β- (78%) | 221Fr | 7/2(+) | |||
| α (22%) | 217Po | |||||||||
| 222Rn | Radon Radium emanation Emanation Emanon Niton |
86 | 136 | 222.0175777(25) | 3.8235(3) d | α | 218Po | 0+ | Trace | |
| 223Rn | 86 | 137 | 223.02179(32)# | 24.3(4) min | β- | 223Fr | 7/2 | |||
| 224Rn | 86 | 138 | 224.02409(32)# | 107(3) min | β- | 224Fr | 0+ | |||
| 225Rn | 86 | 139 | 225.02844(32)# | 4.66(4) min | β- | 225Fr | 7/2- | |||
| 226Rn | 86 | 140 | 226.03089(43)# | 7.4(1) min | β- | 226Fr | 0+ | |||
| 227Rn | 86 | 141 | 227.03541(45)# | 20.8(7) s | β- | 227Fr | 5/2(+#) | |||
| 228Rn | 86 | 142 | 228.03799(44)# | 65(2) s | β- | 228Fr | 0+ | |||
| 229Rn | 86 | 143 | 229.0426536(141) | 12 s | ||||||
Read more about this topic: Isotopes Of Radon
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