Molybdenum-118

Properties and data of the isotope ¹¹⁸Mo.

Contents

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

General data

Name of the isotope:Molybdenum-118; Mo-118Symbol:¹¹⁸Mo or 11842MoMass number A:118 (= number of nucleons)Atomic number Z:42 (= number of protons)Neutrons N:76Nucleon pairing (Z - N):even - evenNuclear ratio (N/Z ratio):1.8095238095238 (= neutron-proton ratio)Neutron excess (N-Z):34Isotopic mass:117.96497(54) u (atomic weight of Molybdenum-118)Nuclide mass:117.9419307 u (calculated nuclear mass without electrons)Mass excess:-32.63023 MeVMass defect:1.02221496 u (per nucleus)Nuclear binding energy:952.18710195 MeV (per nucleus)
8.06938222 MeV (average binding energy per nucleon)Separation energy:S_N = 4.53(71) MeV (first neutron)Half-life:19 msDecay constant λ:36.481430555787 s^-1Specific activity α:1.877746269905 × 10⁺²³ Bq g^-1
5074989918663.5 Ci g^-1Spin and parity:
(nuclear angular momentum)0+

Radioactive Decay

Half-life T_½ = 19 ms respectively 1.9 × 10^-2 seconds s.

Decay mode	Daughter	Probability	Decay energy
β^-	¹¹⁸Tc	?	11.16(64) MeV
β^-, n	¹¹⁷Tc	?	4.53(71) MeV
β^-, 2n	¹¹⁶Tc	?

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 76) and isobaric (same nucleon number A = 118) with Molybdenum-118. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

Z	Isotone N = 76	Isobar A = 118
42	¹¹⁸Mo	¹¹⁸Mo
43	¹¹⁹Tc	¹¹⁸Tc
44	¹²⁰Ru	¹¹⁸Ru
45	¹²¹Rh	¹¹⁸Rh
46	¹²²Pd	¹¹⁸Pd
47	¹²³Ag	¹¹⁸Ag
48	¹²⁴Cd	¹¹⁸Cd
49	¹²⁵In	¹¹⁸In
50	¹²⁶Sn	¹¹⁸Sn
51	¹²⁷Sb	¹¹⁸Sb
52	¹²⁸Te	¹¹⁸Te
53	¹²⁹I	¹¹⁸I
54	¹³⁰Xe	¹¹⁸Xe
55	¹³¹Cs	¹¹⁸Cs
56	¹³²Ba	¹¹⁸Ba
57	¹³³La	¹¹⁸La
58	¹³⁴Ce
59	¹³⁵Pr
60	¹³⁶Nd
61	¹³⁷Pm
62	¹³⁸Sm
63	¹³⁹Eu
64	¹⁴⁰Gd
65	¹⁴¹Tb
66	¹⁴²Dy
67	¹⁴³Ho
68	¹⁴⁴Er
69	¹⁴⁵Tm