Iodine-141

Properties and data of the isotope ¹⁴¹I.

Content

General data

Name of the isotope:Iodine-141; I-141Other names:Jod-141Symbol:¹⁴¹I or 14153IMass number A:141 (= number of nucleons)Atomic number Z:53 (= number of protons)Neutrons N:88Isotopic mass:140.935666(17) u (atomic weight of Iodine-141)Nuclide mass:140.9065931 u (calculated nuclear mass without electrons)Mass excess:-59.92673 MeVMass defect:1.241573304 u (per nucleus)Nuclear binding energy:1156.51808324 MeV (per nucleus)
8.20225591 MeV (average binding energy per nucleon)Separation energy:S_N = 4.392(20) MeV (first neutron)
S_P = 10.64(6) MeV (first proton)Half-life:0.43(2) sDecay constant λ:1.6119701873487 s^-1Specific activity α:6.93393680730 × 10⁺²¹ Bq g^-1
187403697494.84 Ci g^-1Spin and parity:
(nuclear angular momentum)Year of discovery:1974

Radioactive Decay

Half-life T_½ = 0.43(2) s respectively 4.3 × 10^-1 seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
β^-	¹⁴¹Xe	78.8 %	8.271(16) MeV
β^-, n	¹⁴⁰Xe	21.2 %	4.988(16) MeV

Parent Nuclides

Direct parent isotope is: ¹⁴¹Te.

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 88) and isobaric (same nucleon number A = 141) with Iodine-141. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

OZ	Isotone N = 88	Isobar A = 141
49	¹³⁷In
50	¹³⁸Sn
51	¹³⁹Sb	¹⁴¹Sb
52	¹⁴⁰Te	¹⁴¹Te
53	¹⁴¹I	¹⁴¹I
54	¹⁴²Xe	¹⁴¹Xe
55	¹⁴³Cs	¹⁴¹Cs
56	¹⁴⁴Ba	¹⁴¹Ba
57	¹⁴⁵La	¹⁴¹La
58	¹⁴⁶Ce	¹⁴¹Ce
59	¹⁴⁷Pr	¹⁴¹Pr
60	¹⁴⁸Nd	¹⁴¹Nd
61	¹⁴⁹Pm	¹⁴¹Pm
62	¹⁵⁰Sm	¹⁴¹Sm
63	¹⁵¹Eu	¹⁴¹Eu
64	¹⁵²Gd	¹⁴¹Gd
65	¹⁵³Tb	¹⁴¹Tb
66	¹⁵⁴Dy	¹⁴¹Dy
67	¹⁵⁵Ho	¹⁴¹Ho
68	¹⁵⁶Er
69	¹⁵⁷Tm
70	¹⁵⁸Yb
71	¹⁵⁹Lu
72	¹⁶⁰Hf
73	¹⁶¹Ta
74	¹⁶²W
75	¹⁶³Re
76	¹⁶⁴Os
77	¹⁶⁵Ir
78	¹⁶⁶Pt