Tellurium-132

Properties and data of the isotope ¹³²Te.

Content

General data

Name of the isotope:Tellurium-132; Te-132Symbol:¹³²Te or 13252TeMass number A:132 (= number of nucleons)Atomic number Z:52 (= number of protons)Neutrons N:80Isotopic mass:131.908547(4) u (atomic weight of Tellurium-132)Nuclide mass:131.8800226 u (calculated nuclear mass without electrons)Mass excess:-85.18792 MeVMass defect:1.191547944 u (per nucleus)Nuclear binding energy:1109.91976055 MeV (per nucleus)
8.40848303 MeV (average binding energy per nucleon)Separation energy:S_N = 8.048(3) MeV (first neutron)
S_P = 10.496(4) MeV (first proton)Half-life:3.204(13) dDecay constant λ:2.50391286268 × 10^-6 s^-1Specific activity α:1.151062287029 × 10⁺¹⁶ Bq g^-1
311097.91541335 Ci g^-1Spin and parity:
(nuclear angular momentum)0+Charge radius:4.7500(31) femtometer fmYear of discovery:1948

Radioactive Decay

Half-life T_½ = 3.204(13) d respectively 2.768256 × 10⁵ seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
β^-	¹³²I	100 %	0.515(3) MeV

Parent Nuclides

Direct parent isotopes are: ¹³²Sb, ²⁵²Cf.

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 80) and isobaric (same nucleon number A = 132) with Tellurium-132. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

OZ	Isotone N = 80	Isobar A = 132
44	¹²⁴Ru
45	¹²⁵Rh
46	¹²⁶Pd
47	¹²⁷Ag	¹³²Ag
48	¹²⁸Cd	¹³²Cd
49	¹²⁹In	¹³²In
50	¹³⁰Sn	¹³²Sn
51	¹³¹Sb	¹³²Sb
52	¹³²Te	¹³²Te
53	¹³³I	¹³²I
54	¹³⁴Xe	¹³²Xe
55	¹³⁵Cs	¹³²Cs
56	¹³⁶Ba	¹³²Ba
57	¹³⁷La	¹³²La
58	¹³⁸Ce	¹³²Ce
59	¹³⁹Pr	¹³²Pr
60	¹⁴⁰Nd	¹³²Nd
61	¹⁴¹Pm	¹³²Pm
62	¹⁴²Sm	¹³²Sm
63	¹⁴³Eu	¹³²Eu
64	¹⁴⁴Gd
65	¹⁴⁵Tb
66	¹⁴⁶Dy
67	¹⁴⁷Ho
68	¹⁴⁸Er
69	¹⁴⁹Tm
70	¹⁵⁰Yb
71	¹⁵¹Lu