List of isotopes
, -id=Silicon-22 , rowspan=3, 22Si , rowspan=3 style="text-align:right" , 14 , rowspan=3 style="text-align:right" , 8 , rowspan=3, 22.03611(54)# , rowspan=3, 28.7(11) ms , β+, p (62%) , 21Mg , rowspan=3, 0+ , rowspan=3, , rowspan=3, , - , β+ (37%) , 22Al , - , β+, 2p (0.7%) , 20Na , -id=Silicon-23 , rowspan=3, 23Si , rowspan=3 style="text-align:right" , 14 , rowspan=3 style="text-align:right" , 9 , rowspan=3, 23.02571(54)# , rowspan=3, 42.3(4) ms , β+, p (88%) , 22Mg , rowspan=3, 3/2+# , rowspan=3, , rowspan=3, , - , β+ (8%) , 23Al , - , β+, 2p (3.6%) , 21Na , -id=Silicon-24 , rowspan=2, 24Si , rowspan=2 style="text-align:right" , 14 , rowspan=2 style="text-align:right" , 10 , rowspan=2, 24.011535(21) , rowspan=2, 143.2 (21) ms , β+ (65.5%) , 24Al , rowspan=2, 0+ , rowspan=2, , rowspan=2, , - , β+, p (34.5%) , 23Mg , -id=Silicon-25 , rowspan=2, 25Si , rowspan=2 style="text-align:right" , 14 , rowspan=2 style="text-align:right" , 11 , rowspan=2, 25.004109(11) , rowspan=2, 220.6(10) ms , β+ (65%) , 25Al , rowspan=2, 5/2+ , rowspan=2, , rowspan=2, , - , β+, p (35%) , 24Mg , -id=Silicon-26 , 26Si , style="text-align:right" , 14 , style="text-align:right" , 12 , 25.99233382(12) , 2.2453(7) s , β+ , 26Al , 0+ , , , -id=Silicon-27 , 27Si , style="text-align:right" , 14 , style="text-align:right" , 13 , 26.98670469(12) , 4.117(14) s , β+ , 27Al , 5/2+ , , , - , 28Si , style="text-align:right" , 14 , style="text-align:right" , 14 , 27.97692653442(55) , colspan=3 align=center, Stable , 0+ , 0.92223(19) , 0.92205–0.92241 , - , 29Si , style="text-align:right" , 14 , style="text-align:right" , 15 , 28.97649466434(60) , colspan=3 align=center, Stable , 1/2+ , 0.04685(8) , 0.04678–0.04692 , -id=Silicon-30 , 30Si , style="text-align:right" , 14 , style="text-align:right" , 16 , 29.973770137(23) , colspan=3 align=center, Stable , 0+ , 0.03092(11) , 0.03082–0.03102 , -id=Silicon-31 , 31Si , style="text-align:right" , 14 , style="text-align:right" , 17 , 30.975363196(46) , 157.16(20) min , β− , 31P , 3/2+ , , , -id=Silicon-32 , 32Si , style="text-align:right" , 14 , style="text-align:right" , 18 , 31.97415154(32) , 157(7) y , β− , 32P , 0+ , trace , cosmogenic , -id=Silicon-33 , 33Si , style="text-align:right" , 14 , style="text-align:right" , 19 , 32.97797696(75) , 6.18(18) s , β− , 33P , 3/2+ , , , - , 34Si , style="text-align:right" , 14 , style="text-align:right" , 20 , 33.97853805(86) , 2.77(20) s , β− , 34P , 0+ , , , -id=Silicon-34m , style="text-indent:1em" , 34mSi , colspan=3 style="text-indent:2em" , 4256.1(4) keV , <210 ns , IT , 34Si , (3−) , , , -id=Silicon-35 , rowspan=2, 35Si , rowspan=2 style="text-align:right" , 14 , rowspan=2 style="text-align:right" , 21 , rowspan=2, 34.984550(38) , rowspan=2, 780(120) ms , β− , 35P , rowspan=2, 7/2−# , rowspan=2, , rowspan=2, , - , β−, n? , 34P , -id=Silicon-36 , rowspan=2, 36Si , rowspan=2 style="text-align:right" , 14 , rowspan=2 style="text-align:right" , 22 , rowspan=2, 35.986649(77) , rowspan=2, 503(2) ms , β− (88%) , 36P , rowspan=2, 0+ , rowspan=2, , rowspan=2, , - , β−, n (12%) , 35P , -id=Silicon-37 , rowspan=3, 37Si , rowspan=3 style="text-align:right" , 14 , rowspan=3 style="text-align:right" , 23 , rowspan=3, 36.99295(12) , rowspan=3, 141.0(35) ms , β− (83%) , 37P , rowspan=3, (5/2−) , rowspan=3, , rowspan=3, , - , β−, n (17%) , 36P , - , β−, 2n? , 35P , -id=Silicon-38 , rowspan=2, 38Si , rowspan=2 style="text-align:right" , 14 , rowspan=2 style="text-align:right" , 24 , rowspan=2, 37.99552(11) , rowspan=2, 63(8) ms , β− (75%) , 38P , rowspan=2, 0+ , rowspan=2, , rowspan=2, , - , β−, n (25%) , 37P , -id=Silicon-39 , rowspan=3, 39Si , rowspan=3 style="text-align:right" , 14 , rowspan=3 style="text-align:right" , 25 , rowspan=3, 39.00249(15) , rowspan=3, 41.2(41) ms , β− (67%) , 39P , rowspan=3, (5/2−) , rowspan=3, , rowspan=3, , - , β−, n (33%) , 38P , - , β−, 2n? , 37P , -id=Silicon-40 , rowspan=3, 40Si , rowspan=3 style="text-align:right" , 14 , rowspan=3 style="text-align:right" , 26 , rowspan=3, 40.00608(13) , rowspan=3, 31.2(26) ms , β− (62%) , 40P , rowspan=3, 0+ , rowspan=3, , rowspan=3, , - , β−, n (38%) , 39P , - , β−, 2n? , 38P , -id=Silicon-41 , rowspan=3, 41Si , rowspan=3 style="text-align:right" , 14 , rowspan=3 style="text-align:right" , 27 , rowspan=3, 41.01417(32)# , rowspan=3, 20.0(25) ms , β−, n (>55%) , 40P , rowspan=3, 7/2−# , rowspan=3, , rowspan=3, , - , β− (<45%) , 41P , - , β−, 2n? , 39P , -id=Silicon-42 , rowspan=3, 42Si , rowspan=3 style="text-align:right" , 14 , rowspan=3 style="text-align:right" , 28 , rowspan=3, 42.01808(32)# , rowspan=3, 15.5(4 ( stat), 16 ( sys)) ms , β− (51%) , 42P , rowspan=3, 0+ , rowspan=3, , rowspan=3, , - , β−, n (48%) , 41P , - , β−, 2n (1%) , 40P , -id=Silicon-43 , rowspan=3, 43Si , rowspan=3 style="text-align:right" , 14 , rowspan=3 style="text-align:right" , 29 , rowspan=3, 43.02612(43)# , rowspan=3, 13(4 ( stat), 2 ( sys)) ms , β−, n (52%) , 42P , rowspan=3, 3/2−# , rowspan=3, , rowspan=3, , - , β− (27%) , 43P , - , β−, 2n (21%) , 41P , -id=Silicon-44 , rowspan=3, 44Si , rowspan=3 style="text-align:right" , 14 , rowspan=3 style="text-align:right" , 30 , rowspan=3, 44.03147(54)# , rowspan=3, 4# ms 360 ns, β−? , 44P , rowspan=3, 0+ , rowspan=3, , rowspan=3, , - , β−, n? , 43P , - , β−, 2n? , 42P , -id=Silicon-45 , 45Si , style="text-align:right" , 14 , style="text-align:right" , 31 , 45.03982(64)# , 4# ms , , , 3/2−# , , , -id=Silicon-46 , 46Si , style="text-align:right" , 14 , style="text-align:right" , 32 , , , , , , ,Silicon-28
Silicon-28, the most abundant isotope of silicon, is of particular interest in the construction of quantum computers when highly enriched, as the presence of 29Si in a sample of silicon contributes toSilicon-29
Silicon-29 is of note as the only stable silicon isotope with a nonzeroSilicon-34
Silicon-34 is a radioactive isotope with a half-life of 2.8 seconds. In addition to the usual ''N'' = 20 closed shell, the nucleus also shows a strong ''Z'' = 14 shell closure, making it behave like a doubly magic spherical nucleus, except that it is also located two protons above an island of inversion. Silicon-34 has an unusual "bubble" structure where the proton distribution is less dense at the center than near the surface, as the 2''s''1/2 proton orbital is almost unoccupied in the ground state, unlike in 36S where it is almost full. Silicon-34 is one of the knownSee also
Daughter products other than silicon * Isotopes of phosphorus * Isotopes of aluminum * Isotopes of magnesium * Isotopes of sodiumReferences
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