Nuclide<\/b>[3]<\/span>\n [n 1]<\/span><\/p>\n<\/td> | Z<\/i><\/b><\/td> | N<\/i><\/b><\/td> | Isotopic mass <\/b>(Da)<\/span>[4]<\/span>\n [n 2][n 3]<\/span><\/p>\n<\/td> | Half-life<\/b>\n [n 4]<\/span><\/p>\n<\/td> | Decay<\/b>\n mode<\/b><\/p>\n [n 5]<\/span><\/p>\n<\/td> | Daughter<\/b>\n isotope<\/b><\/p>\n [n 6]<\/span><\/p>\n<\/td> | Spin and<\/b>\n parity<\/b><\/p>\n [n 7][n 4]<\/span><\/p>\n<\/td> | Natural abundance <\/b>(mole fraction)<\/span><\/td><\/tr>Excitation energy<\/b><\/td> | Normal proportion<\/b><\/td> | Range of variation<\/b><\/td><\/tr>22<\/span>Si<\/span><\/td> | 14<\/span><\/td> | 8<\/span><\/td> | 22.03579(54)#<\/span><\/td> | 29(2) ms<\/span><\/td> | \u03b2<\/span>+<\/span> (67.6%)<\/span><\/td> | 22<\/span>Al<\/span><\/td> | 0+<\/span><\/td> | <\/td> | <\/td><\/tr> | \u03b2<\/span>+<\/span>, p (32.4%)<\/span><\/td> | 21<\/span>Mg<\/span><\/td><\/tr>23<\/span>Si<\/span><\/td> | 14<\/span><\/td> | 9<\/span><\/td> | 23.02544(54)#<\/span><\/td> | 42.3(4) ms<\/span><\/td> | \u03b2<\/span>+<\/span> (12%)<\/span><\/td> | 23<\/span>Al<\/span><\/td> | 3\/2+#<\/span><\/td> | <\/td> | <\/td><\/tr> | \u03b2<\/span>+<\/span>, p (88%)<\/span><\/td> | 21<\/span>Mg<\/span><\/td><\/tr>24<\/span>Si<\/span><\/td> | 14<\/span><\/td> | 10<\/span><\/td> | 24.011535(21)<\/span><\/td> | 140(8) ms<\/span><\/td> | \u03b2<\/span>+<\/span> (62.4%)<\/span><\/td> | 24<\/span>Al<\/span><\/td> | 0+<\/span><\/td> | <\/td> | <\/td><\/tr> | \u03b2<\/span>+<\/span>, p (37.6%)<\/span><\/td> | 23<\/span>Mg<\/span><\/td><\/tr>25<\/span>Si<\/span><\/td> | 14<\/span><\/td> | 11<\/span><\/td> | 25.004109(11)<\/span><\/td> | 220(3) ms<\/span><\/td> | \u03b2<\/span>+<\/span> (64.8%)<\/span><\/td> | 25<\/span>Al<\/span><\/td> | 5\/2+<\/span><\/td> | <\/td> | <\/td><\/tr> | \u03b2<\/span>+<\/span>, p (35.2%)<\/span><\/td> | 24<\/b>Mg<\/b><\/td><\/tr>26<\/span>Si<\/span><\/td> | 14<\/span><\/td> | 12<\/span><\/td> | 25.9923338(12)<\/span><\/td> | 2.2453(7) s<\/span><\/td> | \u03b2<\/span>+<\/span><\/td> | 26<\/span>Al<\/span><\/td> | 0+<\/span><\/td> | <\/td> | <\/td><\/tr> | 27<\/span>Si<\/span><\/td> | 14<\/span><\/td> | 13<\/span><\/td> | 26.98670469(12)<\/span><\/td> | 4.15(4) s<\/span><\/td> | \u03b2<\/span>+<\/span><\/td> | 27<\/b>Al<\/b><\/td> | 5\/2+<\/span><\/td> | <\/td> | <\/td><\/tr> | 28<\/span>Si<\/span><\/td> | 14<\/span><\/td> | 14<\/span><\/td> | 27.9769265350(5)<\/span><\/td> | Stable<\/b><\/td> | 0+<\/span><\/td> | 0.92223(19)<\/span><\/td> | 0.92205\u20130.92241<\/span><\/td><\/tr>29<\/span>Si<\/span><\/td> | 14<\/span><\/td> | 15<\/span><\/td> | 28.9764946653(6)<\/span><\/td> | Stable<\/b><\/td> | 1\/2+<\/span><\/td> | 0.04685(8)<\/span><\/td> | 0.04678\u20130.04692<\/span><\/td><\/tr>30<\/span>Si<\/span><\/td> | 14<\/span><\/td> | 16<\/span><\/td> | 29.973770137(23)<\/span><\/td> | Stable<\/b><\/td> | 0+<\/span><\/td> | 0.03092(11)<\/span><\/td> | 0.03082\u20130.03102<\/span><\/td><\/tr>31<\/span>Si<\/span><\/td> | 14<\/span><\/td> | 17<\/span><\/td> | 30.97536319(5)<\/span><\/td> | 157.36(26) min<\/span><\/td> | \u03b2<\/span>\u2212<\/span><\/td> | 31<\/b>P<\/b><\/td> | 3\/2+<\/span><\/td> | <\/td> | <\/td><\/tr> | 32<\/span>Si<\/span><\/td> | 14<\/span><\/td> | 18<\/span><\/td> | 31.9741515(3)<\/span><\/td> | 153(19) y<\/span><\/td> | \u03b2<\/span>\u2212<\/span><\/td> | 32<\/span>P<\/span><\/td> | 0+<\/span><\/td> | trace<\/span><\/td> | cosmogenic<\/span><\/td><\/tr>33<\/span>Si<\/span><\/td> | 14<\/span><\/td> | 19<\/span><\/td> | 32.9779770(8)<\/span><\/td> | 6.18(18) s<\/span><\/td> | \u03b2<\/span>\u2212<\/span><\/td> | 33<\/span>P<\/span><\/td> | (3\/2+)<\/span><\/td> | <\/td> | <\/td><\/tr> | 34<\/span>Si<\/span><\/td> | 14<\/span><\/td> | 20<\/span><\/td> | 33.978575(15)<\/span><\/td> | 2.77(20) s<\/span><\/td> | \u03b2<\/span>\u2212<\/span><\/td> | 34<\/span>P<\/span><\/td> | 0+<\/span><\/td> | <\/td> | <\/td><\/tr> | 34m<\/span>Si<\/span><\/td> | 4256.1(4) keV<\/span><\/td> | <210 ns<\/span><\/td> | IT<\/span><\/td> | 34<\/span>Si<\/span><\/td> | (3\u2212)<\/span><\/td> | <\/td> | <\/td><\/tr> | 35<\/span>Si<\/span><\/td> | 14<\/span><\/td> | 21<\/span><\/td> | 34.98455(4)<\/span><\/td> | 780(120) ms<\/span><\/td> | \u03b2<\/span>\u2212<\/span> (94.74%)<\/span><\/td> | 35<\/span>P<\/span><\/td> | 7\/2\u2212#<\/span><\/td> | <\/td> | <\/td><\/tr> | 36<\/span>Si<\/span><\/td> | 14<\/span><\/td> | 22<\/span><\/td> | 35.98665(8)<\/span><\/td> | 450(60) ms<\/span><\/td> | \u03b2<\/span>\u2212<\/span> (87.5%)<\/span><\/td> | 36<\/span>P<\/span><\/td> | 0+<\/span><\/td> | <\/td> | <\/td><\/tr> | \u03b2<\/span>\u2212<\/span>, <\/span>n<\/span><\/a> (12.5%)<\/span><\/td> | 35<\/span>P<\/span><\/td><\/tr>37<\/span>Si<\/span><\/td> | 14<\/span><\/td> | 23<\/span><\/td> | 36.99295(12)<\/span><\/td> | 90(60) ms<\/span><\/td> | \u03b2<\/span>\u2212<\/span> (83%)<\/span><\/td> | 37<\/span>P<\/span><\/td> | (7\/2\u2212)#<\/span><\/td> | <\/td> | <\/td><\/tr> | \u03b2<\/span>\u2212<\/span>, n (17%)<\/span><\/td> | 36<\/span>P<\/span><\/td><\/tr>38<\/span>Si<\/span><\/td> | 14<\/span><\/td> | 24<\/span><\/td> | 37.99552(11)<\/span><\/td> | 90# ms [>1 \u03bcs]<\/span><\/td> | \u03b2<\/span>\u2212<\/span>, n<\/span><\/td> | 37<\/span>P<\/span><\/td> | 0+<\/span><\/td> | <\/td> | <\/td><\/tr> | \u03b2<\/span>\u2212<\/span><\/td> | 38<\/span>P<\/span><\/td><\/tr>39<\/span>Si<\/span><\/td> | 14<\/span><\/td> | 25<\/span><\/td> | 39.00249(15)<\/span><\/td> | 47.5(20) ms<\/span><\/td> | \u03b2<\/span>\u2212<\/span><\/td> | 39<\/span>P<\/span><\/td> | 7\/2\u2212#<\/span><\/td> | <\/td> | <\/td><\/tr> | 40<\/span>Si<\/span><\/td> | 14<\/span><\/td> | 26<\/span><\/td> | 40.00583(37)<\/span><\/td> | 33.0(10) ms<\/span><\/td> | \u03b2<\/span>\u2212<\/span><\/td> | 40<\/span>P<\/span><\/td> | 0+<\/span><\/td> | <\/td> | <\/td><\/tr> | 41<\/span>Si<\/span><\/td> | 14<\/span><\/td> | 27<\/span><\/td> | 41.01301(60)<\/span><\/td> | 20.0(25) ms<\/span><\/td> | \u03b2<\/span>\u2212<\/span><\/td> | 41<\/span>P<\/span><\/td> | 7\/2\u2212#<\/span><\/td> | <\/td> | <\/td><\/tr> | 42<\/span>Si<\/span><\/td> | 14<\/span><\/td> | 28<\/span><\/td> | 42.01768(54)#<\/span><\/td> | 12.5(35) ms<\/span><\/td> | \u03b2<\/span>\u2212<\/span><\/td> | 42<\/span>P<\/span><\/td> | 0+<\/span><\/td> | <\/td> | <\/td><\/tr> | 43<\/span>Si<\/span><\/td> | 14<\/span><\/td> | 29<\/span><\/td> | 43.02480(64)#<\/span><\/td> | 15# ms [>260 ns]<\/span><\/td> | <\/td> | <\/td> | 3\/2\u2212#<\/span><\/td> | <\/td> | <\/td><\/tr> | 44<\/span>Si<\/span><\/td> | 14<\/span><\/td> | 30<\/span><\/td> | 44.03061(64)#<\/span><\/td> | 10# ms<\/span><\/td> | <\/td> | <\/td> | 0+<\/span><\/td> | <\/td> | <\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n Source: Wikipedia<\/span><\/p>\n\n\n\n | | | | | | | | | | | | | |