Handbook of Nuclear Chemistry: Elements and Isotopes: Formation, Transformation, Distribution, Volume 2

| Z A El(Energy) | Half-life/width | J ? | Qmode(%BR) {%Abund} | Principal Gammas, Alphas |
|---|---|---|---|---|
| 42K | 12.360(12) h | 2 ? | Q ? ?=3525.4(100%) | ?1525 |
| 43K | 22.3(1) h | 3/2+ | Q ? ?=1815(100%) | ?373,617,397,593 |
| 44K | 22.13(19) m | 2 ? | Q ? ?=5660(100%) | ?1157,2151,2519,1499 |
| 45K | 17.3(6) m | 3/2+ | Q ? ?=4205(100%) | ?174,1706,2354,1260 |
| 46K | 105(10) s | (2 ?) | Q ? ?=7716(100%) | ?1346 |
| 47K | 17.50(24) s | 1/2+ | Q ? ?=6643(100%) | ?2013,586,565 |
| 48K | 6.8(2) s | (2 ?) | Q ? ?=12090(100%) ? ?n(1.14%) | ?3832,780,675,2789 |
| 49K | 1 .26(5) s | (3/2+) | Q ? ?=10970(100%) | ?4272,2249,2023,4072 |
| ? ?n(86%) | ?3832 | |||
| 50K | 472(4) ms | (0 ?1,2 ?) | Q ? ?=14200(100%) | ?1027,4030,4880,3005 |
| ? ?n(29%) | ?2023,4073,3354 | |||
| 51K | 365(5) ms | (1/2+,3/2+) | Q ? ?=[13900](100%) | ?3462,3530 |
| ? ?n(47%) | ?1026,1973 | |||
| 52K | 105(5) ms | (2 ?) | Q ? ?=[16300](100%) ? ?n(~64%) | ?2563 |
| 53K | 30(5) ms | (3/2+) | Q ? ?=[15900](100%) ? ?n(~67%) ? ?2n(~17%) | |
| 54K | 10(5) ms | Q ? ?=[18000](100%) ? n(>0%) | ||
| 20 Calcium | ||||
| 34Ca | < 35 ns | 0+ | Qp=[ ?900] | |
| 35Ca | 25.7(2) ms | Q ?=[15610](100%) ?p(95.7%) ?2p(4.2%) | ||
| 36Ca | 102(2) ms | 0+ | Q ?=10990(100%) ?p(57%) | ?1619,1113 |
| 37Ca | 181. 1(10) ms | 3/2+ | Q ?=11639(100%) ?p(82.1%) | ?3239,2750,1371 |
| 38Ca | 440(8) ms | 0+ | Q ?=6743(100%) | ? |