Cadmium-106

Properties and data of the isotope ¹⁰⁶Cd.

Contents

General data

Name of the isotope:Cadmium-106; Cd-106Symbol:¹⁰⁶Cd or 10648CdMass number A:106 (= number of nucleons)Atomic number Z:48 (= number of protons)Neutrons N:58Isotopic mass:105.906460(8) u (atomic weight of Cadmium-106)Nuclide mass:105.8801296 u (calculated nuclear mass without electrons)Mass excess:-87.13195 MeVMass defect:0.97170666400001 u (per nucleus)Nuclear binding energy:905.13892728 MeV (per nucleus)
8.53904648 MeV (average binding energy per nucleon)Separation energy:S_N = 10.8696(18) MeV (first neutron)
S_P = 7.350(5) MeV (first proton)Half-life:stableSpin and parity:
(nuclear angular momentum)0+Charge radius:4.5383(36) femtometer fmYear of discovery:1935

Radioactive Decay

Half-life T_½ = stable.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
2 β⁺ ?	¹⁰⁶Pd

Parent Nuclides

Direct parent isotopes are: ¹⁰⁶In, ¹⁰⁶Ag.

Occurrence

Comparison of the natural Cadmium isotopes including isotopic abundance (mole fraction of the isotope mixture in percent):

	Atomic Mass m_a	Quantity	Half-life	Spin
Cadmium Isotopic mixture	112.414 u	100 %
Isotope ¹⁰⁶Cd	105.906460(8) u	1.245(22) %	stable	0+
Isotope ¹⁰⁸Cd	107.904183(8) u	0.888(11) %	stable	0+
Isotope ¹¹⁰Cd	109.903007(4) u	12.470(61) %	stable	0+
Isotope ¹¹¹Cd	110.904183(4) u	12.795(12) %	stable	1/2+
Isotope ¹¹²Cd	111.902763(4) u	24.109(7) %	stable	0+
Isotope ¹¹³Cd	112.904408(3) u	12.227(7) %	8.04(5) × 10¹⁵ a	1/2+
Isotope ¹¹⁴Cd	113.903365(3) u	28.754(81) %	stable	0+
Isotope ¹¹⁶Cd	115.904763(2) u	7.512(54) %	3.3(4) × 10¹⁹ a	0+

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 58) and isobaric (same nucleon number A = 106) with Cadmium-106. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

Z	Isotone N = 58	Isobar A = 106
32	⁹⁰Ge
33	⁹¹As
34	⁹²Se
35	⁹³Br
36	⁹⁴Kr
37	⁹⁵Rb
38	⁹⁶Sr	¹⁰⁶Sr
39	⁹⁷Y	¹⁰⁶Y
40	⁹⁸Zr	¹⁰⁶Zr
41	⁹⁹Nb	¹⁰⁶Nb
42	¹⁰⁰Mo	¹⁰⁶Mo
43	¹⁰¹Tc	¹⁰⁶Tc
44	¹⁰²Ru	¹⁰⁶Ru
45	¹⁰³Rh	¹⁰⁶Rh
46	¹⁰⁴Pd	¹⁰⁶Pd
47	¹⁰⁵Ag	¹⁰⁶Ag
48	¹⁰⁶Cd	¹⁰⁶Cd
49	¹⁰⁷In	¹⁰⁶In
50	¹⁰⁸Sn	¹⁰⁶Sn
51	¹⁰⁹Sb	¹⁰⁶Sb
52	¹¹⁰Te	¹⁰⁶Te
53	¹¹¹I
54	¹¹²Xe
55	¹¹³Cs
56	¹¹⁴Ba