Indium-113m

Properties and data of the isotope ^113mIn.

Contents

See also: List of individual Indium isotopes (and general data sources).

General data

Name of the isotope:Indium-113m; In-113mSymbol:^113mIn or 113m49InMass number A:113 (= number of nucleons)Atomic number Z:49 (= number of protons)Neutrons N:64Nucleon pairing (Z - N):odd - evenNuclear ratio (N/Z ratio):1.3061224489796 (= neutron-proton ratio)Neutron excess (N-Z):15Excitation energy:391.699(3) keVIsotopic mass:112.904062(6) u (atomic weight of Indium-113m)Nuclide mass:112.8771831 u (calculated nuclear mass without electrons)Mass excess:-89.36567 MeVMass defect:1.033919192 u (per nucleus)Nuclear binding energy:963.08952383 MeV (per nucleus)
8.52291614 MeV (average binding energy per nucleon)Half-life:99.476(23) minDecay constant λ:0.0001219127586464 s^-1Specific activity α:6.555141117786 × 10⁺¹⁷ Bq g^-1
17716597.615639 Ci g^-1Spin and parity:
(nuclear angular momentum)1/2-Magnetic dipole moment:μ(μ_N) = - 0.21043(3)Nuclear g-factor:g_l = -0.42086

Radioactive Decay

Half-life T_½ = 99.476(23) min (minutes) respectively 5.6856 × 10³ seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
Iso	¹¹³In	100 %

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
¹¹³In		stable	9/2+

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 64) and isobaric (same nucleon number A = 113) with Indium-113m. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

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