Molybdenum-93m

Properties and data of the isotope ^93mMo.

Contents

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

General data

Name of the isotope:Molybdenum-93m; Mo-93mSymbol:^93mMo or 93m42MoMass number A:93 (= number of nucleons)Atomic number Z:42 (= number of protons)Neutrons N:51Nucleon pairing (Z - N):even - oddNuclear ratio (N/Z ratio):1.2142857142857 (= neutron-proton ratio)Neutron excess (N-Z):9Excitation energy:2424.95(4) keVIsotopic mass:92.90680877(19) u (atomic weight of Molybdenum-93m)Nuclide mass:92.8837695 u (calculated nuclear mass without electrons)Mass excess:-86.80707 MeVMass defect:0.86375329000001 u (per nucleus)Nuclear binding energy:804.58100712 MeV (per nucleus)
8.65140868 MeV (average binding energy per nucleon)Half-life:6.85(7) hDecay constant λ:2.810815817355 × 10^-5 s^-1Specific activity α:1.839905302549 × 10⁺¹⁷ Bq g^-1
4972717.0339176 Ci g^-1Spin and parity:
(nuclear angular momentum)21/2+Magnetic dipole moment:μ(μ_N) = 9.93(8)Nuclear g-factor:g_l = 0.94571428571429

Radioactive Decay

Half-life T_½ = 6.85(7) h (hours) respectively 2.4660 × 10⁴ seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
EC/β⁺	⁹³Nb	0.12(1) %
Iso	⁹³Mo	99.88(1) %

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
⁹³Mo		4839(63) a	5/2+

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 51) and isobaric (same nucleon number A = 93) with Molybdenum-93m. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

Z	Isotone N = 51	Isobar A = 93
28	⁷⁹Ni
29	⁸⁰Cu
30	⁸¹Zn
31	⁸²Ga
32	⁸³Ge
33	⁸⁴As
34	⁸⁵Se	⁹³Se
35	⁸⁶Br	⁹³Br
36	⁸⁷Kr	⁹³Kr
37	⁸⁸Rb	⁹³Rb
38	⁸⁹Sr	⁹³Sr
39	⁹⁰Y	⁹³Y
40	⁹¹Zr	⁹³Zr
41	⁹²Nb	⁹³Nb
42	⁹³Mo	⁹³Mo
43	⁹⁴Tc	⁹³Tc
44	⁹⁵Ru	⁹³Ru
45	⁹⁶Rh	⁹³Rh
46	⁹⁷Pd	⁹³Pd
47	⁹⁸Ag	⁹³Ag
48	⁹⁹Cd
49	¹⁰⁰In
50	¹⁰¹Sn