Tellurium-143

Properties and data of the isotope ¹⁴³Te.

Content

General data

Name of the isotope:Tellurium-143; Te-143Symbol:¹⁴³Te or 14352TeMass number A:143 (= number of nucleons)Atomic number Z:52 (= number of protons)Neutrons N:91Isotopic mass:142.95676(54) u (atomic weight of Tellurium-143)Nuclide mass:142.9282356 u (calculated nuclear mass without electrons)Mass excess:-40.2778 MeVMass defect:1.23864902 u (per nucleus)Nuclear binding energy:1153.79413024 MeV (per nucleus)
8.06849042 MeV (average binding energy per nucleon)Separation energy:S_N = 1.98(71) MeV (first neutron)Half-life:408 nsDecay constant λ:1698890.1484312 s^-1Specific activity α:7.204898436205 × 10⁺²⁷ Bq g^-1
1.947269847623 × 10⁺¹⁷ Ci g^-1Spin and parity:
(nuclear angular momentum)Year of discovery:2010

Radioactive Decay

Half-life T_½ = 408 ns respectively 4.08 × 10^-7 seconds s.

Decay mode	Daughter	Probability	Decay energy
β^-	¹⁴³I	?	10.35(54) MeV
β^-, n	¹⁴²I	?	6.42(63) MeV
β^-, 2n	¹⁴¹I	?

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 91) and isobaric (same nucleon number A = 143) with Tellurium-143. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

OZ	Isotone N = 91	Isobar A = 143
52	¹⁴³Te	¹⁴³Te
53	¹⁴⁴I	¹⁴³I
54	¹⁴⁵Xe	¹⁴³Xe
55	¹⁴⁶Cs	¹⁴³Cs
56	¹⁴⁷Ba	¹⁴³Ba
57	¹⁴⁸La	¹⁴³La
58	¹⁴⁹Ce	¹⁴³Ce
59	¹⁵⁰Pr	¹⁴³Pr
60	¹⁵¹Nd	¹⁴³Nd
61	¹⁵²Pm	¹⁴³Pm
62	¹⁵³Sm	¹⁴³Sm
63	¹⁵⁴Eu	¹⁴³Eu
64	¹⁵⁵Gd	¹⁴³Gd
65	¹⁵⁶Tb	¹⁴³Tb
66	¹⁵⁷Dy	¹⁴³Dy
67	¹⁵⁸Ho	¹⁴³Ho
68	¹⁵⁹Er	¹⁴³Er
69	¹⁶⁰Tm
70	¹⁶¹Yb
71	¹⁶²Lu
72	¹⁶³Hf
73	¹⁶⁴Ta
74	¹⁶⁵W
75	¹⁶⁶Re
76	¹⁶⁷Os
77	¹⁶⁸Ir
78	¹⁶⁹Pt
79	¹⁷⁰Au
80	¹⁷¹Hg