Antimony-119m1

Properties and data of the isotope ¹¹⁹Sb.

Content

General data

Name of the isotope:Antimony-119m1; Sb-119m1Symbol:¹¹⁹Sb or 11951SbMass number A:119 (= number of nucleons)Atomic number Z:51 (= number of protons)Neutrons N:68Isotopic mass:118.903946(8) u (atomic weight of Antimony-119m1)
Excitation energy: 2553.6(3) keVNuclide mass:118.8759701 u (calculated nuclear mass without electrons)Mass excess:-89.47372 MeVMass defect:1.08434492 u (per nucleus)Nuclear binding energy:1010.06078691 MeV (per nucleus)
8.48790577 MeV (average binding energy per nucleon)Half-life:130(3) nsDecay constant λ:5331901.3889227 s^-1Specific activity α:2.721140780964 × 10⁺²⁸ Bq g^-1
7.354434543148 × 10⁺¹⁷ Ci g^-1Spin and parity:
(nuclear angular momentum)(19/2-)Magnetic dipole moment:μ(μ_N) = +3.14(6)Quadrupole moment Q:2.13(22) barn (100 fm²)Nuclear g-factor:g_l = 0.33052631578947

Nuclear Isomers

Nuclear isomers or excited states with the activation energy in keV related to the ground state.

Nuclear Isomer	Excitation Energy	Half-life	Spin
¹¹⁹Sb		38.19(22) h	5/2+
^119m2Sb	2841.7+x keV	0.85(9) s	(27/2+)

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 68) and isobaric (same nucleon number A = 119) with Antimony-119m1. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

OZ	Isotone N = 68	Isobar A = 119
38	¹⁰⁶Sr
39	¹⁰⁷Y
40	¹⁰⁸Zr
41	¹⁰⁹Nb
42	¹¹⁰Mo
43	¹¹¹Tc	¹¹⁹Tc
44	¹¹²Ru	¹¹⁹Ru
45	¹¹³Rh	¹¹⁹Rh
46	¹¹⁴Pd	¹¹⁹Pd
47	¹¹⁵Ag	¹¹⁹Ag
48	¹¹⁶Cd	¹¹⁹Cd
49	¹¹⁷In	¹¹⁹In
50	¹¹⁸Sn	¹¹⁹Sn
51	¹¹⁹Sb	¹¹⁹Sb
52	¹²⁰Te	¹¹⁹Te
53	¹²¹I	¹¹⁹I
54	¹²²Xe	¹¹⁹Xe
55	¹²³Cs	¹¹⁹Cs
56	¹²⁴Ba	¹¹⁹Ba
57	¹²⁵La	¹¹⁹La
58	¹²⁶Ce	¹¹⁹Ce
59	¹²⁷Pr
60	¹²⁸Nd
61	¹²⁹Pm
62	¹³⁰Sm
63	¹³¹Eu