Silver-105m

Properties and data of the isotope ¹⁰⁵Ag.

Content

General data

Name of the isotope:Silver-105m; Ag-105mSymbol:¹⁰⁵Ag or 10547AgMass number A:105 (= number of nucleons)Atomic number Z:47 (= number of protons)Neutrons N:58Isotopic mass:104.906526(5) u (atomic weight of Silver-105m)
Excitation energy: 25.479(16) keVNuclide mass:104.8807441 u (calculated nuclear mass without electrons)Mass excess:-87.07047 MeVMass defect:0.96381563200001 u (per nucleus)Nuclear binding energy:897.78847831 MeV (per nucleus)
8.55036646 MeV (average binding energy per nucleon)Half-life:7.23(16) minDecay constant λ:0.0015978496555093 s^-1Specific activity α:9.252380479306 × 10⁺¹⁸ Bq g^-1
250064337.27855 Ci g^-1Spin and parity:
(nuclear angular momentum)7/2+Magnetic dipole moment:μ(μ_N) = + 4.408(13)Nuclear g-factor:g_l = 1.2594285714286

Radioactive Decay

Half-life T_½ = 7.23(16) min (minutes) respectively 4.338 × 10² seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
EE/β⁺	¹⁰⁵Pd	0.34 %
Iso	¹⁰⁵Ag	99.66(7) %

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
¹⁰⁵Ag		41.29(7) d	1/2-

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 58) and isobaric (same nucleon number A = 105) with Silver-105m. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

OZ	Isotone N = 58	Isobar A = 105
32	⁹⁰Ge
33	⁹¹As
34	⁹²Se
35	⁹³Br
36	⁹⁴Kr
37	⁹⁵Rb
38	⁹⁶Sr	¹⁰⁵Sr
39	⁹⁷Y	¹⁰⁵Y
40	⁹⁸Zr	¹⁰⁵Zr
41	⁹⁹Nb	¹⁰⁵Nb
42	¹⁰⁰Mo	¹⁰⁵Mo
43	¹⁰¹Tc	¹⁰⁵Tc
44	¹⁰²Ru	¹⁰⁵Ru
45	¹⁰³Rh	¹⁰⁵Rh
46	¹⁰⁴Pd	¹⁰⁵Pd
47	¹⁰⁵Ag	¹⁰⁵Ag
48	¹⁰⁶Cd	¹⁰⁵Cd
49	¹⁰⁷In	¹⁰⁵In
50	¹⁰⁸Sn	¹⁰⁵Sn
51	¹⁰⁹Sb	¹⁰⁵Sb
52	¹¹⁰Te	¹⁰⁵Te
53	¹¹¹I
54	¹¹²Xe
55	¹¹³Cs
56	¹¹⁴Ba