Silver-111

Properties and data of the isotope ¹¹¹Ag.

Content

General data

Name of the isotope:Silver-111; Ag-111Symbol:¹¹¹Ag or 11147AgMass number A:111 (= number of nucleons)Atomic number Z:47 (= number of protons)Neutrons N:64Isotopic mass:110.9052968(16) u (atomic weight of Silver-111)Nuclide mass:110.8795149 u (calculated nuclear mass without electrons)Mass excess:-88.21546 MeVMass defect:1.017034328 u (per nucleus)Nuclear binding energy:947.36137433 MeV (per nucleus)
8.53478716 MeV (average binding energy per nucleon)Separation energy:S_N = 8.8295(19) MeV (first neutron)
S_P = 7.1735(15) MeV (first proton)Half-life:7.45(1) dDecay constant λ:1.076850578796 × 10^-6 s^-1Specific activity α:5.895405336926 × 10⁺¹⁵ Bq g^-1
159335.27937639 Ci g^-1Spin and parity:
(nuclear angular momentum)1/2-Magnetic dipole moment:μ(μ_N) = - 0.146(2)Nuclear g-factor:g_l = -0.292Year of discovery:1937

Radioactive Decay

Half-life T_½ = 7.45(1) d respectively 6.43680 × 10⁵ seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
β^-	¹¹¹Cd	100 %	1.0368(14) MeV

Parent Nuclides

Direct parent isotope is: ¹¹¹Pd.

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
^111mAg	59.82(4) keV	64.8(8) s	7/2+

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 64) and isobaric (same nucleon number A = 111) with Silver-111. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

Z	Isotone N = 64	Isobar A = 111
36	¹⁰⁰Kr
37	¹⁰¹Rb
38	¹⁰²Sr
39	¹⁰³Y
40	¹⁰⁴Zr	¹¹¹Zr
41	¹⁰⁵Nb	¹¹¹Nb
42	¹⁰⁶Mo	¹¹¹Mo
43	¹⁰⁷Tc	¹¹¹Tc
44	¹⁰⁸Ru	¹¹¹Ru
45	¹⁰⁹Rh	¹¹¹Rh
46	¹¹⁰Pd	¹¹¹Pd
47	¹¹¹Ag	¹¹¹Ag
48	¹¹²Cd	¹¹¹Cd
49	¹¹³In	¹¹¹In
50	¹¹⁴Sn	¹¹¹Sn
51	¹¹⁵Sb	¹¹¹Sb
52	¹¹⁶Te	¹¹¹Te
53	¹¹⁷I	¹¹¹I
54	¹¹⁸Xe	¹¹¹Xe
55	¹¹⁹Cs
56	¹²⁰Ba
57	¹²¹La
58	¹²²Ce
59	¹²³Pr
60	¹²⁴Nd