Cr
Хром
Z 24 51,996 г/мольПерехідний метал
| 52Cr | 28 | 51,9405 | -55 419,51 | 83,789% | Стабільний | 0+ | --- | 1923 |
| 53Cr | 29 | 52,9406 | -55 287,62 | 9,501% | Стабільний | 3/2- | --- | 1930 |
| 50Cr | 26 | 49,946 | -50 261,36 | 4,345% | Стабільний | 0+ | β⁺ | 1930 |
| 54Cr | 30 | 53,9389 | -56 935,38 | 2,365% | Стабільний | 0+ | --- | 1930 |
| 41Cr | 17 | 41,0219 | 20 410,0 | --- | --- | (3/2+) | p→40V | --- |
| 42Cr | 18 | 42,0076 | 7 060,0 | --- | 13,3 мс | 0+ | β⁺p→41Ti(94,4%) β⁺→42V(5,6%) p→40Ti | 1996 |
| 43Cr | 19 | 42,9979 | -1 970,0 | --- | 21,1 мс | (3/2+) | β⁺p→42Ti(79,3%) β⁺p→41Sc(11,6%) β⁺→43V(8,97%) β⁺p(0,13%) β⁺α→39Sc | 1992 |
| 44Cr | 20 | 43,9856 | -13 420,0 | --- | 42,8 мс | 0+ | β⁺→44V(88%) β⁺p→43Ti(12%) | 1987 |
| 45Cr | 21 | 44,9791 | -19 510,0 | --- | 60,9 мс | (7/2-) | β⁺→45V(65,6%) β⁺p→44Ti(34,4%) | 1974 |
| 45mCr | 21 | 44,9792 | -19 400,0 | --- | --- | (3/2) | γ→45Cr(100%) | 2011 |
| 46Cr | 22 | 45,9684 | -29 472,0 | --- | 224,3 мс | 0+ | β⁺→46V(100%) | 1972 |
| 47Cr | 23 | 46,9629 | -34 563,0 | --- | 461,6 мс | 3/2- | β⁺→47V(100%) | 1972 |
| 48Cr | 24 | 47,954 | -42 821,0 | --- | 21,56 год | 0+ | β⁺→48V(100%) | 1952 |
| 49Cr | 25 | 48,9513 | -45 332,4 | --- | 42,3 хв | 5/2- | β⁺→49V(100%) | 1942 |
| 51Cr | 27 | 50,9448 | -51 450,71 | --- | 27,7 д | 7/2- | EC→51V(100%) | 1940 |
| 55Cr | 31 | 54,9408 | -55 110,32 | --- | 3,5 хв | 3/2- | β⁻→55Mn(100%) | 1952 |
| 56Cr | 32 | 55,9406 | -55 285,1 | --- | 5,94 хв | 0+ | β⁻→56Mn(100%) | 1960 |
| 57Cr | 33 | 56,9436 | -52 525,0 | --- | 21,1 с | (3/2-) | β⁻→57Mn(100%) | 1978 |
| 58Cr | 34 | 57,9442 | -51 991,8 | --- | 7,0 с | 0+ | β⁻→58Mn(100%) | 1980 |
| 59Cr | 35 | 58,9483 | -48 115,9 | --- | 1,05 с | (1/2-) | β⁻→59Mn(100%) | 1980 |
| 59mCr | 35 | 58,9489 | -47 613,2 | --- | 96,0 мкс | (9/2+) | γ→59Cr(100%) | 1998 |
| 60Cr | 36 | 59,9496 | -46 908,5 | --- | 490,0 мс | 0+ | β⁻→60Mn(100%) β⁻n→59Mn | 1980 |
| 61Cr | 37 | 60,9544 | -42 496,5 | --- | 243,0 мс | (5/2-) | β⁻→61Mn(100%) β⁻n→60Mn | 1985 |
| 62Cr | 38 | 61,9561 | -40 853,0 | --- | 206,0 мс | 0+ | β⁻→62Mn(100%) β⁻n→61Mn | 1985 |
| 63Cr | 39 | 62,9612 | -36 180,0 | --- | 129,0 мс | (1/2-) | β⁻→63Mn(100%) β⁻n→62Mn | 1992 |
| 64Cr | 40 | 63,9639 | -33 640,0 | --- | 43,0 мс | 0+ | β⁻→64Mn(100%) β⁻n→63Mn | 1992 |
| 65Cr | 41 | 64,9696 | -28 310,0 | --- | 27,5 мс | (1/2-) | β⁻→65Mn(100%) β⁻n→64Mn β⁻n→63Mn | 1997 |
| 66Cr | 42 | 65,973 | -25 140,0 | --- | 23,8 мс | 0+ | β⁻→66Mn(100%) β⁻n→65Mn β⁻n→64Mn | 1997 |
| 67Cr | 43 | 66,9793 | -19 270,0 | --- | 11,0 мс | (1/2-) | β⁻→67Mn β⁻n→66Mn β⁻n→65Mn | 1997 |
| 68Cr | 44 | 67,9832 | -15 690,0 | --- | 10,0 мс | 0+ | β⁻→68Mn β⁻n→67Mn β⁻n→66Mn | 2009 |
| 69Cr | 45 | 68,9897 | -9 630,0 | --- | 6,0 мс | (7/2+) | β⁻→69Mn β⁻n→68Mn β⁻n→67Mn | 2013 |
| 70Cr | 46 | 69,9939 | -5 640,0 | --- | 6,0 мс | 0+ | β⁻→70Mn β⁻n→69Mn β⁻n→68Mn | 2013 |