ラドンの同位体
一覧

| 同位体核種 | Z(p)> 励起エネルギー | N(n)> 励起エネルギー | 同位体質量 (u)> 励起エネルギー | 半減期 | 核スピン数 | 天然存在比 | 天然存在比 (範囲) |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 195Rn | 86 | 109 | 195.00544(5) | 6 ms | 3/2-# |  |  |
| 195mRn | 50(50) keV | 50(50) keV | 50(50) keV | 6 ms | 13/2+# |  |  |
| 196Rn | 86 | 110 | 196.002115(16) | 4.7(11) ms [4.4(+13-9) ms] | 0+ |  |  |
| 197Rn | 86 | 111 | 197.00158(7) | 66(16) ms [65(+25-14) ms] | 3/2-# |  |  |
| 197mRn | 200(60)# keV | 200(60)# keV | 200(60)# keV | 21(5) ms [19(+8-4) ms] | (13/2+) |  |  |
| 198Rn | 86 | 112 | 197.998679(14) | 65(3) ms | 0+ |  |  |
| 199Rn | 86 | 113 | 198.99837(7) | 620(30) ms | 3/2-# |  |  |
| 199mRn | 180(70) keV | 180(70) keV | 180(70) keV | 320(20) ms | 13/2+# |  |  |
| 200Rn | 86 | 114 | 199.995699(14) | 0.96(3) s | 0+ |  |  |
| 201Rn | 86 | 115 | 200.99563(8) | 7.0(4) s | (3/2-) |  |  |
| 201mRn | 280(90)# keV | 280(90)# keV | 280(90)# keV | 3.8(1) s | (13/2+) |  |  |
| 202Rn | 86 | 116 | 201.993263(19) | 9.94(18) s | 0+ |  |  |
| 203Rn | 86 | 117 | 202.993387(25) | 44.2(16) s | (3/2-) |  |  |
| 203mRn | 363(4) keV | 363(4) keV | 363(4) keV | 26.7(5) s | 13/2(+) |  |  |
| 204Rn | 86 | 118 | 203.991429(16) | 1.17(18) min | 0+ |  |  |
| 205Rn | 86 | 119 | 204.99172(5) | 170(4) s | 5/2- |  |  |
| 206Rn | 86 | 120 | 205.990214(16) | 5.67(17) min | 0+ |  |  |
| 207Rn | 86 | 121 | 206.990734(28) | 9.25(17) min | 5/2- |  |  |
| 207mRn | 899.0(10) keV | 899.0(10) keV | 899.0(10) keV | 181(18) µs | (13/2+) |  |  |
| 208Rn | 86 | 122 | 207.989642(12) | 24.35(14) min | 0+ |  |  |
| 209Rn | 86 | 123 | 208.990415(21) | 28.5(10) min | 5/2- |  |  |
| 209m1Rn | 1173.98(13) keV | 1173.98(13) keV | 1173.98(13) keV | 13.4(13) µs | 13/2+ |  |  |
| 209m2Rn | 3636.78(23) keV | 3636.78(23) keV | 3636.78(23) keV | 3.0(3) µs | (35/2+) |  |  |
| 210Rn | 86 | 124 | 209.989696(9) | 2.4(1) h | 0+ |  |  |
| 210m1Rn | 1690(15) keV | 1690(15) keV | 1690(15) keV | 644(40) ns | 8+# |  |  |
| 210m2Rn | 3837(15) keV | 3837(15) keV | 3837(15) keV | 1.06(5) µs | (17)- |  |  |
| 210m3Rn | 6493(15) keV | 6493(15) keV | 6493(15) keV | 1.04(7) µs | (22)+ |  |  |
| 211Rn | 86 | 125 | 210.990601(7) | 14.6(2) h | 1/2- |  |  |
| 212Rn | 86 | 126 | 211.990704(3) | 23.9(12) min | 0+ |  |  |
| 213Rn | 86 | 127 | 212.993883(6) | 19.5(1) ms | (9/2+) |  |  |
| 214Rn | 86 | 128 | 213.995363(10) | 0.27(2) µs | 0+ |  |  |
| 214mRn | 4595.4 keV | 4595.4 keV | 4595.4 keV | 245(30) ns | (22+) |  |  |
| 215Rn | 86 | 129 | 214.998745(8) | 2.30(10) µs | 9/2+ |  |  |
| 216Rn | 86 | 130 | 216.000274(8) | 45(5) µs | 0+ |  |  |
| 217Rn | 86 | 131 | 217.003928(5) | 0.54(5) ms | 9/2+ |  |  |
| 218Rn | 86 | 132 | 218.0056013(25) | 35(5) ms | 0+ |  |  |
| 219Rn | 86 | 133 | 219.0094802(27) | 3.96(1) s | 5/2+ |  |  |
| 220Rn | 86 | 134 | 220.0113940(24) | 55.6(1) s | 0+ |  |  |
| 221Rn | 86 | 135 | 221.015537(6) | 25.7(5) min | 7/2(+) |  |  |
| 222Rn | 86 | 136 | 222.0175777(25) | 3.8235(3) d | 0+ |  |  |
| 223Rn | 86 | 137 | 223.02179(32)# | 24.3(4) min | 7/2 |  |  |
| 224Rn | 86 | 138 | 224.02409(32)# | 107(3) min | 0+ |  |  |
| 225Rn | 86 | 139 | 225.02844(32)# | 4.66(4) min | 7/2- |  |  |
| 226Rn | 86 | 140 | 226.03089(43)# | 7.4(1) min | 0+ |  |  |
| 227Rn | 86 | 141 | 227.03541(45)# | 20.8(7) s | 5/2(+#) |  |  |
| 228Rn | 86 | 142 | 228.03799(44)# | 65(2) s | 0+ |  |  |