Rhodium-116

Properties and data of the isotope ¹¹⁶Rh.

Contents

See also: List of individual Rhodium isotopes (and general data sources).

General data

Name of the isotope:Rhodium-116; Rh-116Symbol:¹¹⁶Rh or 11645RhMass number A:116 (= number of nucleons)Atomic number Z:45 (= number of protons)Neutrons N:71Isotopic mass:115.92406(8) u (atomic weight of Rhodium-116)Nuclide mass:115.8993752 u (calculated nuclear mass without electrons)Mass excess:-70.73765 MeVMass defect:1.043275476 u (per nucleus)Nuclear binding energy:971.80484624 MeV (per nucleus)
8.37762798 MeV (average binding energy per nucleon)Separation energy:S_N = 4.58(7) MeV (first neutron)
S_P = 11.84(12) MeV (first proton)Half-life:0.68(6) sDecay constant λ:1.0193340890587 s^-1Specific activity α:5.33788997186 × 10⁺²¹ Bq g^-1
144267296536.95 Ci g^-1Spin and parity:
(nuclear angular momentum)1+Year of discovery:1970

Radioactive Decay

Half-life T_½ = 0.68(6) s respectively 6.8 × 10^-1 seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
β^-	¹¹⁶Pd	100 %	9.10(7) 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
^116mRh	150 keV	0.57(5) s	(6-)

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 71) and isobaric (same nucleon number A = 116) with Rhodium-116. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

Z	Isotone N = 71	Isobar A = 116
40	¹¹¹Zr
41	¹¹²Nb
42	¹¹³Mo	¹¹⁶Mo
43	¹¹⁴Tc	¹¹⁶Tc
44	¹¹⁵Ru	¹¹⁶Ru
45	¹¹⁶Rh	¹¹⁶Rh
46	¹¹⁷Pd	¹¹⁶Pd
47	¹¹⁸Ag	¹¹⁶Ag
48	¹¹⁹Cd	¹¹⁶Cd
49	¹²⁰In	¹¹⁶In
50	¹²¹Sn	¹¹⁶Sn
51	¹²²Sb	¹¹⁶Sb
52	¹²³Te	¹¹⁶Te
53	¹²⁴I	¹¹⁶I
54	¹²⁵Xe	¹¹⁶Xe
55	¹²⁶Cs	¹¹⁶Cs
56	¹²⁷Ba	¹¹⁶Ba
57	¹²⁸La	¹¹⁶La
58	¹²⁹Ce
59	¹³⁰Pr
60	¹³¹Nd
61	¹³²Pm
62	¹³³Sm
63	¹³⁴Eu
64	¹³⁵Gd
65	¹³⁶Tb