Silver-104

Properties and data of the isotope ¹⁰⁴Ag.

Content

General data

Name of the isotope:Silver-104; Ag-104Symbol:¹⁰⁴Ag or 10447AgMass number A:104 (= number of nucleons)Atomic number Z:47 (= number of protons)Neutrons N:57Isotopic mass:103.908624(4) u (atomic weight of Silver-104)Nuclide mass:103.8828421 u (calculated nuclear mass without electrons)Mass excess:-85.1162 MeVMass defect:0.953052716 u (per nucleus)Nuclear binding energy:887.76288664 MeV (per nucleus)
8.5361816 MeV (average binding energy per nucleon)Separation energy:S_N = 8.385(6) MeV (first neutron)
S_P = 4.948(4) MeV (first proton)Half-life:69.2(10) minDecay constant λ:0.00016694296256261 s^-1Specific activity α:9.760718797351 × 10⁺¹⁷ Bq g^-1
26380321.073922 Ci g^-1Spin and parity:
(nuclear angular momentum)5+Magnetic dipole moment:μ(μ_N) = + 3.914(3)Nuclear g-factor:g_l = 0.7828Charge radius:4.5119(57) femtometer fmYear of discovery:1955

Radioactive Decay

Half-life T_½ = 69.2(10) min (minutes) respectively 4.152 × 10³ seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
EE/β⁺	¹⁰⁴Pd	100 %	4.279(4) MeV

Parent Nuclides

Direct parent isotope is: ¹⁰⁴Cd.

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
^104mAg	6.90(22) keV	33.5(20) min	2+

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 57) and isobaric (same nucleon number A = 104) with Silver-104. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

OZ	Isotone N = 57	Isobar A = 104
32	⁸⁹Ge
33	⁹⁰As
34	⁹¹Se
35	⁹²Br
36	⁹³Kr
37	⁹⁴Rb
38	⁹⁵Sr	¹⁰⁴Sr
39	⁹⁶Y	¹⁰⁴Y
40	⁹⁷Zr	¹⁰⁴Zr
41	⁹⁸Nb	¹⁰⁴Nb
42	⁹⁹Mo	¹⁰⁴Mo
43	¹⁰⁰Tc	¹⁰⁴Tc
44	¹⁰¹Ru	¹⁰⁴Ru
45	¹⁰²Rh	¹⁰⁴Rh
46	¹⁰³Pd	¹⁰⁴Pd
47	¹⁰⁴Ag	¹⁰⁴Ag
48	¹⁰⁵Cd	¹⁰⁴Cd
49	¹⁰⁶In	¹⁰⁴In
50	¹⁰⁷Sn	¹⁰⁴Sn
51	¹⁰⁸Sb	¹⁰⁴Sb
52	¹⁰⁹Te
53	¹¹⁰I
54	¹¹¹Xe
55	¹¹²Cs