At
Астат
Z 85 210,0 г/мольМеталоїд Радіоактивний
| 191At | 106 | 191,0041 | 3 864,0 | --- | 2,1 мс | 1/2+ | α→187Bi(100%) β⁺→191Po | 2003 |
| 191mAt | 106 | 191,0042 | 3 922,0 | --- | 2,2 мс | (7/2-) | α→187Bi(100%) β⁺→191Po | 2003 |
| 192At | 107 | 192,0031 | 2 926,0 | --- | 11,5 мс | (3+) | α→188Bi(~100%) β⁺SF(<0,51%) β⁺→192Po | 2006 |
| 192mAt | 107 | 192,0031 | 2 926,0 | --- | 88,0 мс | (9-) | α→188Bi(~100%) β⁺SF(<0,51%) β⁺→192Po | 2006 |
| 193At | 108 | 192,9999 | -67,0 | --- | 29,0 мс | 1/2+ | α→189Bi(100%) | 2003 |
| 193mAt | 108 | 192,9999 | -59,0 | --- | 21,0 мс | 7/2- | α→189Bi(100%) | 1995 |
| 193nAt | 108 | 193,0 | -25,0 | --- | 28,0 мс | 13/2+ | γ→193At(76%) α→189Bi(24%) | 2003 |
| 194At | 109 | 193,9992 | -716,0 | --- | 286,0 мс | (5-) | α→190Bi(100%) β⁺→194Po(8,268%) β⁺SF(0,032%) | 2009 |
| 194mAt | 109 | 193,9992 | -740,0 | --- | 323,0 мс | 10- | α→190Bi(100%) β⁺→194Po(8,268%) β⁺SF(0,032%) | 1984 |
| 195At | 110 | 194,9963 | -3 470,0 | --- | 290,0 мс | 1/2+ | α→191Bi(100%) β⁺→195Po | 1999 |
| 195mAt | 110 | 194,9963 | -3 441,0 | --- | 143,0 мс | 7/2- | α→191Bi(88%) γ→195At(12%) β⁺→195Po | 1995 |
| 196At | 111 | 195,9958 | -3 910,0 | --- | 377,0 мс | (3+) | α→192Bi(97,5%) β⁺SF(0,009%) β⁺→196Po | 1967 |
| 196mAt | 111 | 195,9958 | -3 950,0 | --- | 20,0 мс | (10-) | α→192Bi(100%) | 1996 |
| 196nAt | 111 | 195,996 | -3 750,0 | --- | 11,0 мкс | (5+) | γ→196At(100%) | 2000 |
| 197At | 112 | 196,9932 | -6 355,0 | --- | 388,2 мс | 9/2- | α→193Bi(96,1%) β⁺→197Po(3,9%) | 1967 |
| 197mAt | 112 | 196,9932 | -6 311,0 | --- | 2,0 с | 1/2+ | α→193Bi(~100%) γ→197At(<0,004%) β⁺→197Po | 1985 |
| 197nAt | 112 | 196,9935 | -6 044,0 | --- | 1,3 мкс | 13/2+ | γ→197At(100%) | 1999 |
| 198At | 113 | 197,9928 | -6 709,0 | --- | 4,47 с | 3+ | α→194Bi(97%) β⁺→198Po | 1967 |
| 198mAt | 113 | 197,9931 | -6 442,0 | --- | 1,23 с | 10- | α→194Bi(93%) β⁺→198Po | 1967 |
| 199At | 114 | 198,9905 | -8 823,0 | --- | 7,02 с | 9/2- | α→195Bi(89%) β⁺→199Po | 1967 |
| 199mAt | 114 | 198,9908 | -8 579,0 | --- | 273,0 мс | 1/2+ | γ→199At(99%) α→195Bi(1%) | 2013 |
| 199nAt | 114 | 198,9911 | -8 250,0 | --- | 70,0 нс | 13/2+ | γ→199At(100%) | 2000 |
| 200At | 115 | 199,9904 | -8 988,0 | --- | 43,2 с | (3+) | α→196Bi(52%) β⁺→200Po(48%) | 1963 |
| 200mAt | 115 | 199,9905 | -8 875,0 | --- | 47,0 с | (7+) | β⁺→200Po(57%) α→196Bi(43%) γ→200At | 1967 |
| 200nAt | 115 | 199,9907 | -8 644,0 | --- | 8,0 с | (10-) | α→196Bi(10,5%) γ→200At β⁺→200Po | 1967 |
| 201At | 116 | 200,9884 | -10 789,0 | --- | 1,42 хв | 9/2- | α→197Bi(71%) β⁺→201Po(29%) | 1963 |
| 201mAt | 116 | 200,9889 | -10 330,0 | --- | 45,0 мс | 1/2+ | γ→201At(100%) | 2015 |
| 201nAt | 116 | 200,9909 | -8 469,0 | --- | 3,39 мкс | 29/2+ | γ→201At(100%) | 2015 |
| 202At | 117 | 201,9886 | -10 595,0 | --- | 3,07 хв | 3+ | β⁺→202Po(88%) α→198Bi(12%) | 1961 |
| 202mAt | 117 | 201,9888 | -10 401,0 | --- | 3,03 хв | 7+ | β⁺→202Po(91,5%) α→198Bi(8,5%) γ→202At | 1992 |
| 202nAt | 117 | 201,9893 | -10 010,0 | --- | 460,0 мс | 10- | γ→202At(99,904%) α→198Bi(0,096%) β⁺→202Po | 1992 |
| 203At | 118 | 202,9869 | -12 163,0 | --- | 7,4 хв | 9/2- | β⁺→203Po(69%) α→199Bi(31%) | 1951 |
| 203mAt | 118 | 202,9877 | -11 480,0 | --- | 3,5 мс | 1/2+ | γ→203At(100%) | 2017 |
| 203nAt | 118 | 202,9894 | -9 833,0 | --- | 9,77 мкс | 29/2+ | γ→203At(100%) | 2018 |
| 204At | 119 | 203,9873 | -11 875,0 | --- | 9,12 хв | 7+ | β⁺→204Po(96,2%) α→200Bi(3,8%) | 1961 |
| 204mAt | 119 | 203,9879 | -11 288,0 | --- | 108,0 мс | 10- | γ→204At(100%) | 1969 |
| 205At | 120 | 204,9861 | -12 985,0 | --- | 26,9 хв | 9/2- | β⁺→205Po(90%) α→201Bi(10%) | 1951 |
| 205mAt | 120 | 204,9886 | -10 645,0 | --- | 7,76 мкс | 29/2+ | γ→205At(100%) | 1982 |
| 206At | 121 | 205,9866 | -12 439,0 | --- | 30,6 хв | (6+) | β⁺→206Po(99,1%) α→202Bi(0,9%) | 1961 |
| 206mAt | 121 | 205,9875 | -11 629,0 | --- | 813,0 нс | (10-) | γ→206At(100%) | 1999 |
| 207At | 122 | 206,9858 | -13 227,0 | --- | 1,81 год | 9/2- | β⁺→207Po(90%) α→203Bi(10%) | 1951 |
| 207mAt | 122 | 206,9881 | -11 110,0 | --- | 108,0 нс | 25/2+ | γ→207At(100%) | 1981 |
| 208At | 123 | 207,9866 | -12 470,0 | --- | 1,63 год | 6+ | β⁺→208Po(99,45%) α→204Bi(0,55%) | 1950 |
| 208mAt | 123 | 207,9891 | -10 194,0 | --- | 1,5 мкс | 16- | γ→208At(100%) | 1991 |
| 209At | 124 | 208,9862 | -12 884,0 | --- | 5,42 год | 9/2- | β⁺→209Po(96,1%) α→205Bi(3,9%) | 1951 |
| 209mAt | 124 | 208,9888 | -10 455,0 | --- | 916,0 нс | 29/2+ | γ→209At(100%) | 1975 |
| 210At | 125 | 209,9871 | -11 972,0 | --- | 8,1 год | (5+) | β⁺→210Po(99,825%) α→206Bi(0,175%) | 1949 |
| 210mAt | 125 | 209,9899 | -9 422,0 | --- | 482,0 нс | (15-) | γ→210At(100%) | 1970 |
| 210nAt | 125 | 209,9915 | -7 944,0 | --- | 5,66 мкс | (19+) | γ→210At(100%) | 1975 |
| 211At | 126 | 210,9875 | -11 647,2 | --- | 7,21 год | 9/2- | EC→211Po(58,2%) α→207Bi(41,8%) | 1940 |
| 211mAt | 126 | 210,9927 | -6 832,7 | --- | 4,23 мкс | (39/2-) | γ→211At(100%) | 1971 |
| 212At | 127 | 211,9907 | -8 628,1 | --- | 314,0 мс | (1-) | α→208Bi(100%) β⁺→212Po β⁻→212Rn | 1954 |
| 212mAt | 127 | 211,991 | -8 405,2 | --- | 119,0 мс | (9-) | α→208Bi(100%) γ→212At | 1970 |
| 212nAt | 127 | 211,9959 | -3 856,7 | --- | 152,0 мкс | (25-) | γ→212At(100%) | 1998 |
| 213At | 128 | 212,9929 | -6 580,0 | --- | 125,0 нс | 9/2- | α→209Bi(100%) | 1968 |
| 213mAt | 128 | 212,9944 | -5 222,0 | --- | 110,0 нс | (25/2-) | γ→213At(100%) | 1980 |
| 213nAt | 128 | 212,9962 | -3 582,0 | --- | 45,0 мкс | (49/2+) | γ→213At(100%) | 2003 |
| 214At | 129 | 213,9964 | -3 379,0 | --- | 558,0 нс | 1- | α→210Bi(100%) | 1949 |
| 214mAt | 129 | 213,9964 | -3 321,0 | --- | 265,0 нс | --- | α→210Bi(100%) γ→214At | 1982 |
| 214nAt | 129 | 213,9966 | -3 147,0 | --- | 760,0 нс | 9- | α→210Bi(100%) γ→214At | 1982 |
| 215At | 130 | 214,9987 | -1 257,0 | --- | 37,0 мкс | 9/2- | α→211Bi(100%) | 1944 |
| 216At | 131 | 216,0024 | 2 257,0 | --- | 300,0 мкс | 1- | α→212Bi(100%) β⁻→216Rn EC→216Po | 1948 |
| 216mAt | 131 | 216,0026 | 2 417,0 | --- | 100,0 мкс | (9-) | α→212Bi(100%) | 1971 |
| 217At | 132 | 217,0047 | 4 395,0 | --- | 32,6 мс | 9/2- | α→213Bi(99,992%) β⁻→217Rn(0,008%) | 1947 |
| 218At | 133 | 218,0087 | 8 100,0 | --- | 1,28 с | (2-) | α→214Bi(100%) β⁻→218Rn | 1943 |
| 219At | 134 | 219,0112 | 10 396,0 | --- | 56,0 с | (9/2-) | α→215Bi(93,6%) β⁻→219Rn(6,4%) | 1953 |
| 220At | 135 | 220,0154 | 14 376,0 | --- | 3,71 хв | (3-) | β⁻→220Rn(92%) α→216Bi(8%) | 1989 |
| 221At | 136 | 221,018 | 16 783,0 | --- | 2,3 хв | (3/2-) | β⁻→221Rn(100%) | 1989 |
| 222At | 137 | 222,0225 | 20 953,0 | --- | 54,0 с | --- | β⁻→222Rn(100%) | 1989 |
| 223At | 138 | 223,0252 | 23 428,0 | --- | 50,0 с | (3/2-) | β⁻→223Rn(100%) α→219Bi | 1989 |
| 224At | 139 | 224,0297 | 27 711,0 | --- | 2,5 хв | (2+) | β⁻→224Rn(100%) | 2010 |
| 225At | 140 | 225,0325 | 30 300,0 | --- | 3,0 с | (1/2+) | β⁻→225Rn β⁻n→224Rn | 2010 |
| 226At | 141 | 226,0372 | 34 660,0 | --- | 7,0 хв | (2+) | β⁻→226Rn β⁻n→225Rn | 2010 |
| 227At | 142 | 227,0402 | 37 430,0 | --- | 5,0 с | (1/2+) | β⁻→227Rn β⁻n→226Rn | 2010 |
| 228At | 143 | 228,045 | 41 880,0 | --- | 1,0 хв | (3+) | β⁻→228Rn β⁻n→227Rn | 2010 |
| 229At | 144 | 229,0482 | 44 890,0 | --- | 1,0 с | (1/2+) | β⁻→229Rn β⁻n→228Rn | 2010 |