Silver-105

Properties and data of the isotope ¹⁰⁵Ag.

Content

General data

Name of the isotope:Silver-105; Ag-105Symbol: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-105)Nuclide 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)Separation energy:S_N = 10.026(6) MeV (first neutron)
S_P = 4.965(5) MeV (first proton)Half-life:41.29(7) dDecay constant λ:1.942973313644 × 10^-7 s^-1Specific activity α:1.125082594409 × 10⁺¹⁵ Bq g^-1
30407.637686754 Ci g^-1Spin and parity:
(nuclear angular momentum)1/2-Magnetic dipole moment:μ(μ_N) = 0.1013(10)Nuclear g-factor:g_l = 0.2026Charge radius:4.5269(45) femtometer fmYear of discovery:1939

Radioactive Decay

Half-life T_½ = 41.29(7) d respectively 3.567456 × 10⁶ seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
EE/β⁺	¹⁰⁵Pd	100 %	1.347(5) MeV

Parent Nuclides

Direct parent isotope is: ¹⁰⁵Cd.

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
^105mAg	25.479(16) keV	7.23(16) min	7/2+

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-105. 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