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Isotopes of tin



Tin (Sn) is the element with the greatest number of stable isotopes (ten), which is probably related to the fact that 50 is a "magic number" of protons. 28 additional unstable isotopes are known, including the "doubly magic" tin-100 (100Sn) (discovered in 1994)[1].
Standard atomic mass: 118.710(7) u

Additional recommended knowledge

Table

nuclide
symbol
Z(p) N(n)  
isotopic mass (u)
 
half-life nuclear
spin
representative
isotopic
composition
(mole fraction)
range of natural
variation
(mole fraction)
excitation energy
99Sn 50 49 98.94933(64)# 5# ms 9/2+#
100Sn 50 50 99.93904(76) 1.1(4) s [0.94(+54-27) s] 0+
101Sn 50 51 100.93606(32)# 3(1) s 5/2+#
102Sn 50 52 101.93030(14) 4.5(7) s 0+
102mSn 2017(2) keV 720(220) ns (6+)
103Sn 50 53 102.92810(32)# 7.0(6) s 5/2+#
104Sn 50 54 103.92314(11) 20.8(5) s 0+
105Sn 50 55 104.92135(9) 34(1) s (5/2+)
106Sn 50 56 105.91688(5) 115(5) s 0+
107Sn 50 57 106.91564(9) 2.90(5) min (5/2+)
108Sn 50 58 107.911925(21) 10.30(8) min 0+
109Sn 50 59 108.911283(11) 18.0(2) min 5/2(+)
110Sn 50 60 109.907843(15) 4.11(10) h 0+
111Sn 50 61 110.907734(7) 35.3(6) min 7/2+
111mSn 254.72(8) keV 12.5(10) µs 1/2+
112Sn 50 62 111.904818(5) STABLE 0+ 0.0097(1)
113Sn 50 63 112.905171(4) 115.09(3) d 1/2+
113mSn 77.386(19) keV 21.4(4) min 7/2+
114Sn 50 64 113.902779(3) STABLE 0+ 0.0066(1)
114mSn 3087.37(7) keV 733(14) ns 7-
115Sn 50 65 114.903342(3) STABLE 1/2+ 0.0034(1)
115m1Sn 612.81(4) keV 3.26(8) µs 7/2+
115m2Sn 713.64(12) keV 159(1) µs 11/2-
116Sn 50 66 115.901741(3) STABLE 0+ 0.1454(9)
117Sn 50 67 116.902952(3) STABLE 1/2+ 0.0768(7)
117m1Sn 314.58(4) keV 13.76(4) d 11/2-
117m2Sn 2406.4(4) keV 1.75(7) µs (19/2+)
118Sn 50 68 117.901603(3) STABLE 0+ 0.2422(9)
119Sn 50 69 118.903308(3) STABLE 1/2+ 0.0859(4)
119m1Sn 89.531(13) keV 293.1(7) d 11/2-
119m2Sn 2127.0(10) keV 9.6(12) µs (19/2+)
120Sn 50 70 119.9021947(27) STABLE 0+ 0.3258(9)
120m1Sn 2481.63(6) keV 11.8(5) µs (7-)
120m2Sn 2902.22(22) keV 6.26(11) µs (10+)#
121Sn 50 71 120.9042355(27) 27.03(4) h 3/2+
121m1Sn 6.30(6) keV 43.9(5) a 11/2-
121m2Sn 1998.8(9) keV 5.3(5) µs (19/2+)#
121m3Sn 2834.6(18) keV 0.167(25) µs (27/2-)
122Sn 50 72 121.9034390(29) STABLE 0+ 0.0463(3)
123Sn 50 73 122.9057208(29) 129.2(4) d 11/2-
123m1Sn 24.6(4) keV 40.06(1) min 3/2+
123m2Sn 1945.0(10) keV 7.4(26) µs (19/2+)
123m3Sn 2153.0(12) keV 6 µs (23/2+)
123m4Sn 2713.0(14) keV 34 µs (27/2-)
124Sn 50 74 123.9052739(15) STABLE [>100E+15 a] 0+ 0.0579(5)
124m1Sn 2204.622(23) keV 0.27(6) µs 5-
124m2Sn 2325.01(4) keV 3.1(5) µs 7-
124m3Sn 2656.6(5) keV 45(5) µs (10+)#
125Sn 50 75 124.9077841(16) 9.64(3) d 11/2-
125mSn 27.50(14) keV 9.52(5) min 3/2+
126Sn 50 76 125.907653(11) 2.30(14)E+5 a 0+
126m1Sn 2218.99(8) keV 6.6(14) µs 7-
126m2Sn 2564.5(5) keV 7.7(5) µs (10+)#
127Sn 50 77 126.910360(26) 2.10(4) h (11/2-)
127mSn 4.7(3) keV 4.13(3) min (3/2+)
128Sn 50 78 127.910537(29) 59.07(14) min 0+
128mSn 2091.50(11) keV 6.5(5) s (7-)
129Sn 50 79 128.91348(3) 2.23(4) min (3/2+)#
129mSn 35.2(3) keV 6.9(1) min (11/2-)#
130Sn 50 80 129.913967(11) 3.72(7) min 0+
130m1Sn 1946.88(10) keV 1.7(1) min (7-)#
130m2Sn 2434.79(12) keV 1.61(15) µs (10+)
131Sn 50 81 130.917000(23) 56.0(5) s (3/2+)
131m1Sn 80(30)# keV 58.4(5) s (11/2-)
131m2Sn 4846.7(9) keV 300(20) ns (19/2- to 23/2-)
132Sn 50 82 131.917816(15) 39.7(8) s 0+
133Sn 50 83 132.92383(4) 1.45(3) s (7/2-)#
134Sn 50 84 133.92829(11) 1.050(11) s 0+
135Sn 50 85 134.93473(43)# 530(20) ms (7/2-)
136Sn 50 86 135.93934(54)# 0.25(3) s 0+
137Sn 50 87 136.94599(64)# 190(60) ms 5/2-#

Notes

  • Geologically exceptional samples are known in which the isotopic composition lies outside the reported range. The uncertainty in the atomic mass may exceed the stated value for such specimens.
  • Values marked # are not purely derived from experimental data, but at least partly from systematic trends. Spins with weak assignment arguments are enclosed in parentheses.
  • Uncertainties are given in concise form in parentheses after the corresponding last digits. Uncertainty values denote one standard deviation, except isotopic composition and standard atomic mass from IUPAC which use expanded uncertainties.

References

  1. ^ Phil Walker (1994). "Doubly Magic Discovery of Tin-100". PHYSICS WORLD 7 (June).
  • Isotope masses from Ame2003 Atomic Mass Evaluation by G. Audi, A.H. Wapstra, C. Thibault, J. Blachot and O. Bersillon in Nuclear Physics A729 (2003).
  • Isotopic compositions and standard atomic masses from Atomic weights of the elements. Review 2000 (IUPAC Technical Report). Pure Appl. Chem. Vol. 75, No. 6, pp. 683-800, (2003) and Atomic Weights Revised (2005).
  • Half-life, spin, and isomer data selected from these sources. Editing notes on this article's talk page.
    • Audi, Bersillon, Blachot, Wapstra. The Nubase2003 evaluation of nuclear and decay properties, Nuc. Phys. A 729, pp. 3-128 (2003).
    • National Nuclear Data Center, Brookhaven National Laboratory. Information extracted from the NuDat 2.1 database (retrieved Sept. 2005).
    • David R. Lide (ed.), Norman E. Holden in CRC Handbook of Chemistry and Physics, 85th Edition, online version. CRC Press. Boca Raton, Florida (2005). Section 11, Table of the Isotopes.


Isotopes of indium Isotopes of tin Isotopes of antimony
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This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Isotopes_of_tin". A list of authors is available in Wikipedia.
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