Table
| nuclide symbol |
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) |
|---|---|---|---|---|---|---|---|---|---|
| 34Ca | 20 | 14 | 34.01412(32)# | <35 ns | p | 33K | 0+ | ||
| 35Ca | 20 | 15 | 35.00494(21)# | 25.7(2) ms | β+ (>99.9%) | 35K | 1/2+# | ||
| β+, p (<.1%) | 34Ar | ||||||||
| 36Ca | 20 | 16 | 35.99309(4) | 102(2) ms | β+, p (56.8%) | 35Ar | 0+ | ||
| β+ (43.2%) | 36K | ||||||||
| 37Ca | 20 | 17 | 36.985870(24) | 181.1(10) ms | β+, p (74.5%) | 36Ar | (3/2+) | ||
| β+ (25.5%) | 37K | ||||||||
| 38Ca | 20 | 18 | 37.976318(5) | 440(8) ms | β+ | 38K | 0+ | ||
| 39Ca | 20 | 19 | 38.9707197(20) | 859.6(14) ms | β+ | 39K | 3/2+ | ||
| 40Ca | 20 | 20 | 39.96259098(22) | Observationally Stable | 0+ | 0.96941(156) | 0.96933-0.96947 | ||
| 41Ca | 20 | 21 | 40.96227806(26) | 1.02(7)×105 a | EC | 41K | 7/2- | Trace | |
| 42Ca | 20 | 22 | 41.95861801(27) | Stable | 0+ | 0.00647(23) | 0.00646-0.00648 | ||
| 43Ca | 20 | 23 | 42.9587666(3) | Stable | 7/2- | 0.00135(10) | 0.00135-0.00135 | ||
| 44Ca | 20 | 24 | 43.9554818(4) | Stable | 0+ | 0.02086(110) | 0.02082-0.02092 | ||
| 45Ca | 20 | 25 | 44.9561866(4) | 162.67(25) d | β- | 45Sc | 7/2- | ||
| 46Ca | 20 | 26 | 45.9536926(24) | Observationally Stable | 0+ | 4(3)×10−5 | 4×10−5-4×10−5 | ||
| 47Ca | 20 | 27 | 46.9545460(24) | 4.536(3) d | β- | 47Sc | 7/2- | ||
| 48Ca | 20 | 28 | 47.952534(4) | 43(38)×1018 a | β-β- | 48Ti | 0+ | 0.00187(21) | 0.00186-0.00188 |
| 49Ca | 20 | 29 | 48.955674(4) | 8.718(6) min | β- | 49Sc | 3/2- | ||
| 50Ca | 20 | 30 | 49.957519(10) | 13.9(6) s | β- | 50Sc | 0+ | ||
| 51Ca | 20 | 31 | 50.9615(1) | 10.0(8) s | β- (>99.9%) | 51Sc | (3/2-)# | ||
| β-, n (<.1%) | 50Sc | ||||||||
| 52Ca | 20 | 32 | 51.96510(75) | 4.6(3) s | β- (98%) | 52Sc | 0+ | ||
| β-, n (2%) | 51Sc | ||||||||
| 53Ca | 20 | 33 | 52.97005(54)# | 90(15) ms | β- (70%) | 53Sc | 3/2-# | ||
| β-, n (30%) | 52Sc | ||||||||
| 54Ca | 20 | 34 | 53.97435(75)# | 50# ms | β-, n | 53Sc | 0+ | ||
| β- | 54Sc | ||||||||
| 55Ca | 20 | 35 | 54.98055(75)# | 30# ms | β- | 55Sc | 5/2-# | ||
| 56Ca | 20 | 36 | 55.98557(97)# | 10# ms | β- | 56Sc | 0+ | ||
| 57Ca | 20 | 37 | 56.99236(107)# | 5# ms | β- | 57Sc | 5/2-# | ||
| β-, n | 56Sc | ||||||||
Read more about this topic: Isotopes Of Calcium
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