Cadmium-113m

Properties and data of the isotope ^113mCd.

Contents

General data

Name of the isotope:Cadmium-113m; Cd-113mSymbol:^113mCd or 113m48CdMass number A:113 (= number of nucleons)Atomic number Z:48 (= number of protons)Neutrons N:65Isotopic mass:112.904408(3) u (atomic weight of Cadmium-113m)
Excitation energy: 263.54(3) keVNuclide mass:112.8780776 u (calculated nuclear mass without electrons)Mass excess:-89.04337 MeVMass defect:1.034413076 u (per nucleus)Nuclear binding energy:963.54957382 MeV (per nucleus)
8.52698738 MeV (average binding energy per nucleon)Half-life:14.1(5) aDecay constant λ:1.558825126073 × 10^-9 s^-1Specific activity α:8381664718950.6 Bq g^-1
226.53147889056 Ci g^-1Spin and parity:
(nuclear angular momentum)11/2-Magnetic dipole moment:μ(μ_N) = -1.0883(3)Quadrupole moment Q:- 0.71(7) barn (100 fm²)Nuclear g-factor:g_l = -0.19787272727273

Radioactive Decay

Half-life T_½ = 14.1(5) a respectively 4.4466 × 10⁸ seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
β^-	¹¹³In	99.86 %
Iso	¹¹³Cd	0.14 %

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
¹¹³Cd		8.04(5) × 10¹⁵ a	1/2+

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 65) and isobaric (same nucleon number A = 113) with Cadmium-113m. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

Z	Isotone N = 65	Isobar A = 113
36	¹⁰¹Kr
37	¹⁰²Rb
38	¹⁰³Sr
39	¹⁰⁴Y
40	¹⁰⁵Zr
41	¹⁰⁶Nb	¹¹³Nb
42	¹⁰⁷Mo	¹¹³Mo
43	¹⁰⁸Tc	¹¹³Tc
44	¹⁰⁹Ru	¹¹³Ru
45	¹¹⁰Rh	¹¹³Rh
46	¹¹¹Pd	¹¹³Pd
47	¹¹²Ag	¹¹³Ag
48	¹¹³Cd	¹¹³Cd
49	¹¹⁴In	¹¹³In
50	¹¹⁵Sn	¹¹³Sn
51	¹¹⁶Sb	¹¹³Sb
52	¹¹⁷Te	¹¹³Te
53	¹¹⁸I	¹¹³I
54	¹¹⁹Xe	¹¹³Xe
55	¹²⁰Cs	¹¹³Cs
56	¹²¹Ba
57	¹²²La
58	¹²³Ce
59	¹²⁴Pr
60	¹²⁵Nd
61	¹²⁶Pm