Indium-116
Properties and data of the isotope 116In.
See also: list of Indium isotopes.
General data
Name of the isotope:Indium-116; In-116Symbol:116In or 11649InMass number A:116 (= number of nucleons)Atomic number Z:49 (= number of protons)Neutrons N:67Isotopic mass:115.90525999(24) u (atomic weight of Indium-116)Nuclide mass:115.8783811 u (calculated nuclear mass without electrons)Mass excess:-88.24975 MeVMass defect:1.05871595 u (per nucleus)Nuclear binding energy:986.18755513 MeV (per nucleus)
8.50161685 MeV (average binding energy per nucleon)Separation energy:SN = 6.78472(22) MeV (first neutron)
SP = 7.4542(7) MeV (first proton)Half-life:14.10(3) sDecay constant λ:0.049159374507798 s-1Specific activity α:2.57430154671 × 10+20 Bq g-1
6957571747.8811 Ci g-1Spin and parity:
(nuclear angular momentum)1+Magnetic dipole moment:μ(μN) = 2.7826(8)Quadrupole moment Q:0.11(1) barn (100 fm2)Nuclear g-factor:gl = 2.7826Charge radius:4.6211(27) femtometer fmYear of discovery:1937
Radioactive Decay
Half-life T½ = 14.10(3) s respectively 1.410 × 101 seconds s.
Decay
mode | Daughter | Probability | Decay energy | γ energy
(intensity) |
|---|
| β- | 116Sn | 99.977(6) % | 3.27622(24) MeV | |
| EC | 116Cd | 0.023(6) % | 0.46273(27) MeV | |
Nuclear Isomers
Nuclear isomers or excited states with the activation energy in keV related to the ground state.
| Nuclear Isomer | Excitation Energy | Half-life | Spin |
|---|
| 116m1In | 127.267(6) keV | 54.29(17) min | 5+ |
| 116m2In | 289.660(6) keV | 2.18(4) s | 8- |
Isotones and Isobars
The following table shows the atomic nuclei that are isotonic (same neutron number N = 67) and isobaric (same nucleon number A = 116) with Indium-116. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
| Z | Isotone N = 67 | Isobar A = 116 |
|---|
| 38 | 105Sr | |
| 39 | 106Y | |
| 40 | 107Zr | |
| 41 | 108Nb | |
| 42 | 109Mo | 116Mo |
| 43 | 110Tc | 116Tc |
| 44 | 111Ru | 116Ru |
| 45 | 112Rh | 116Rh |
| 46 | 113Pd | 116Pd |
| 47 | 114Ag | 116Ag |
| 48 | 115Cd | 116Cd |
| 49 | 116In | 116In |
| 50 | 117Sn | 116Sn |
| 51 | 118Sb | 116Sb |
| 52 | 119Te | 116Te |
| 53 | 120I | 116I |
| 54 | 121Xe | 116Xe |
| 55 | 122Cs | 116Cs |
| 56 | 123Ba | 116Ba |
| 57 | 124La | 116La |
| 58 | 125Ce | |
| 59 | 126Pr | |
| 60 | 127Nd | |
| 61 | 128Pm | |
| 62 | 129Sm | |
| 63 | 130Eu | |
External data and identifiers
Last update: 2020-10-17
Perma link: https://www.chemlin.org/isotope/indium-116
© 1996 - 2025 ChemLin
