Silver-100m

Properties and data of the isotope ¹⁰⁰Ag.

Content

General data

Name of the isotope:Silver-100m; Ag-100mSymbol:¹⁰⁰Ag or 10047AgMass number A:100 (= number of nucleons)Atomic number Z:47 (= number of protons)Neutrons N:53Isotopic mass:99.916115(5) u (atomic weight of Silver-100m)
Excitation energy: 15.52(16) keVNuclide mass:99.8903331 u (calculated nuclear mass without electrons)Mass excess:-78.13837 MeVMass defect:0.910902052 u (per nucleus)Nuclear binding energy:848.49979603 MeV (per nucleus)
8.48499796 MeV (average binding energy per nucleon)Half-life:2.24(13) minDecay constant λ:0.005157345093452 s^-1Specific activity α:3.137197840007 × 10⁺¹⁹ Bq g^-1
847891308.11005 Ci g^-1Spin and parity:
(nuclear angular momentum)(2)+

Radioactive Decay

Half-life T_½ = 2.24(13) min (minutes) respectively 1.344 × 10² seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
EE/β⁺	¹⁰⁰Pd	?
Iso	¹⁰⁰Ag	?

Parent Nuclides

Direct parent isotopes are: ¹⁰⁰Cd, ¹⁰¹In.

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
¹⁰⁰Ag		2.01(9) min	(5)+

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 53) and isobaric (same nucleon number A = 100) with Silver-100m. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

OZ	Isotone N = 53	Isobar A = 100
29	⁸²Cu
30	⁸³Zn
31	⁸⁴Ga
32	⁸⁵Ge
33	⁸⁶As
34	⁸⁷Se
35	⁸⁸Br
36	⁸⁹Kr	¹⁰⁰Kr
37	⁹⁰Rb	¹⁰⁰Rb
38	⁹¹Sr	¹⁰⁰Sr
39	⁹²Y	¹⁰⁰Y
40	⁹³Zr	¹⁰⁰Zr
41	⁹⁴Nb	¹⁰⁰Nb
42	⁹⁵Mo	¹⁰⁰Mo
43	⁹⁶Tc	¹⁰⁰Tc
44	⁹⁷Ru	¹⁰⁰Ru
45	⁹⁸Rh	¹⁰⁰Rh
46	⁹⁹Pd	¹⁰⁰Pd
47	¹⁰⁰Ag	¹⁰⁰Ag
48	¹⁰¹Cd	¹⁰⁰Cd
49	¹⁰²In	¹⁰⁰In
50	¹⁰³Sn	¹⁰⁰Sn
51	¹⁰⁴Sb
52	¹⁰⁵Te