Tellurium-107

Properties and data of the isotope ¹⁰⁷Te.

Content

General data

Name of the isotope:Tellurium-107; Te-107Symbol:¹⁰⁷Te or 10752TeMass number A:107 (= number of nucleons)Atomic number Z:52 (= number of protons)Neutrons N:55Isotopic mass:106.93501(8) u (atomic weight of Tellurium-107)Nuclide mass:106.9064856 u (calculated nuclear mass without electrons)Mass excess:-60.5378 MeVMass defect:0.948462044 u (per nucleus)Nuclear binding energy:883.48670321 MeV (per nucleus)
8.25688508 MeV (average binding energy per nucleon)Separation energy:S_N = 10.39(12) MeV (first neutron)
S_P = 1.35(7) MeV (first proton)Half-life:3.1(1) msDecay constant λ:223.59586469676 s^-1Specific activity α:1.270307351795 × 10⁺²⁴ Bq g^-1
34332631129608 Ci g^-1Spin and parity:
(nuclear angular momentum)Year of discovery:1979

Radioactive Decay

Half-life T_½ = 3.1(1) ms respectively 3.1 × 10^-3 seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
α	¹⁰³Sn	70(30) %	4.008(5) MeV
EE/β⁺	¹⁰⁷Sb	30(30) %	10.11(7) MeV

Parent Nuclides

Direct parent isotope is: ¹¹¹Xe.

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 55) and isobaric (same nucleon number A = 107) with Tellurium-107. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

OZ	Isotone N = 55	Isobar A = 107
30	⁸⁵Zn
31	⁸⁶Ga
32	⁸⁷Ge
33	⁸⁸As
34	⁸⁹Se
35	⁹⁰Br
36	⁹¹Kr
37	⁹²Rb
38	⁹³Sr	¹⁰⁷Sr
39	⁹⁴Y	¹⁰⁷Y
40	⁹⁵Zr	¹⁰⁷Zr
41	⁹⁶Nb	¹⁰⁷Nb
42	⁹⁷Mo	¹⁰⁷Mo
43	⁹⁸Tc	¹⁰⁷Tc
44	⁹⁹Ru	¹⁰⁷Ru
45	¹⁰⁰Rh	¹⁰⁷Rh
46	¹⁰¹Pd	¹⁰⁷Pd
47	¹⁰²Ag	¹⁰⁷Ag
48	¹⁰³Cd	¹⁰⁷Cd
49	¹⁰⁴In	¹⁰⁷In
50	¹⁰⁵Sn	¹⁰⁷Sn
51	¹⁰⁶Sb	¹⁰⁷Sb
52	¹⁰⁷Te	¹⁰⁷Te
53	¹⁰⁸I
54	¹⁰⁹Xe