Tellurium-112

Properties and data of the isotope ¹¹²Te.

Content

General data

Name of the isotope:Tellurium-112; Te-112Symbol:¹¹²Te or 11252TeMass number A:112 (= number of nucleons)Atomic number Z:52 (= number of protons)Neutrons N:60Isotopic mass:111.916728(9) u (atomic weight of Tellurium-112)Nuclide mass:111.8882036 u (calculated nuclear mass without electrons)Mass excess:-77.56737 MeVMass defect:1.010068624 u (per nucleus)Nuclear binding energy:940.87286284 MeV (per nucleus)
8.40065056 MeV (average binding energy per nucleon)Separation energy:S_N = 12.051(11) MeV (first neutron)
S_P = 4.020(12) MeV (first proton)Half-life:2.0(2) minDecay constant λ:0.0057762265046662 s^-1Specific activity α:3.133806274774 × 10⁺¹⁹ Bq g^-1
846974668.85805 Ci g^-1Spin and parity:
(nuclear angular momentum)0+Year of discovery:1976

Radioactive Decay

Half-life T_½ = 2.0(2) min (minutes) respectively 1.20 × 10² seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
EE/β⁺	¹¹²Sb	100 %	4.031(20) MeV

Parent Nuclides

Direct parent isotope is: ¹¹²I.

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 60) and isobaric (same nucleon number A = 112) with Tellurium-112. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

OZ	Isotone N = 60	Isobar A = 112
34	⁹⁴Se
35	⁹⁵Br
36	⁹⁶Kr
37	⁹⁷Rb
38	⁹⁸Sr
39	⁹⁹Y
40	¹⁰⁰Zr	¹¹²Zr
41	¹⁰¹Nb	¹¹²Nb
42	¹⁰²Mo	¹¹²Mo
43	¹⁰³Tc	¹¹²Tc
44	¹⁰⁴Ru	¹¹²Ru
45	¹⁰⁵Rh	¹¹²Rh
46	¹⁰⁶Pd	¹¹²Pd
47	¹⁰⁷Ag	¹¹²Ag
48	¹⁰⁸Cd	¹¹²Cd
49	¹⁰⁹In	¹¹²In
50	¹¹⁰Sn	¹¹²Sn
51	¹¹¹Sb	¹¹²Sb
52	¹¹²Te	¹¹²Te
53	¹¹³I	¹¹²I
54	¹¹⁴Xe	¹¹²Xe
55	¹¹⁵Cs	¹¹²Cs
56	¹¹⁶Ba
57	¹¹⁷La