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Properties and data of the isotope 119Sn.


See also: list of Tin isotopes.


General data

Name of the isotope:Tin-119; Sn-119Symbol:119Sn or 11950SnMass number A:119 (= number of nucleons)Atomic number Z:50 (= number of protons)Neutrons N:69Isotopic mass:118.903311(5) u (atomic weight of Tin-119)Nuclide mass:118.8758836 u (calculated nuclear mass without electrons)Mass excess:-90.06522 MeVMass defect:1.085819804 u (per nucleus)Nuclear binding energy:1011.43463251 MeV (per nucleus)
8.49945069 MeV (average binding energy per nucleon)
Separation energy:SN = 6.4835(5) MeV (first neutron)
SP = 10.126(8) MeV (first proton)
Half-life:stableSpin and parity:
(nuclear angular momentum)
1/2+Magnetic dipole moment:μ(μN) = -1.0459(5)Charge radius:4.6438(20) femtometer fmYear of discovery:1925


Parent Nuclides

Direct parent isotopes are: 119Sb, 119In.



Comparison of the natural Tin isotopes including isotopic abundance (mole fraction of the isotope mixture in percent):


Atomic Mass maQuantityHalf-lifeSpin
Isotopic mixture
118.710 u100 %
Isotope 112Sn111.904824(4) u0.97(1) %stable0+
Isotope 114Sn113.902783(6) u0.66(1) %stable0+
Isotope 115Sn114.9033447(1) u0.34(1) %stable1/2+
Isotope 116Sn115.901743(1) u14.54(9) %stable0+
Isotope 117Sn116.902954(3) u7.68(7) %stable1/2+
Isotope 118Sn117.901607(3) u24.22(9) %stable0+
Isotope 119Sn118.903311(5) u8.59(4) %stable1/2+
Isotope 120Sn119.902202(6) u32.58(9) %stable0+
Isotope 122Sn121.90344(2) u4.63(3) %stable0+
Isotope 124Sn123.905277(7) u5.79(5) %stable0+