Molybdenum-94

Properties and data of the isotope ⁹⁴Mo.

Contents

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

General data

Name of the isotope:Molybdenum-94; Mo-94Symbol:⁹⁴Mo or 9442MoMass number A:94 (= number of nucleons)Atomic number Z:42 (= number of protons)Neutrons N:52Nucleon pairing (Z - N):even - evenNuclear ratio (N/Z ratio):1.2380952380952 (= neutron-proton ratio)Neutron excess (N-Z):10Isotopic mass:93.905085(3) u (atomic weight of Molybdenum-94)Nuclide mass:93.8820457 u (calculated nuclear mass without electrons)Mass excess:-88.41275 MeVMass defect:0.874141976 u (per nucleus)Nuclear binding energy:814.25800579 MeV (per nucleus)
8.66231921 MeV (average binding energy per nucleon)Separation energy:S_N = 9.67831(23) MeV (first neutron)
S_P = 8.4902(15) MeV (first proton)Half-life:stableSpin and parity:
(nuclear angular momentum)0+Charge radius:4.3529(13) femtometer fmYear of discovery:1930

Parent Nuclides

Direct parent isotopes are: ⁹⁴Tc, ⁹⁴Nb.

Occurrence

Comparison of the natural Molybdenum isotopes including isotopic abundance (mole fraction of the isotope mixture in percent):

	Atomic Mass m_a	Quantity	Half-life	Spin
Molybdenum Isotopic mixture	95.95 u	100 %
Isotope ⁹²Mo	91.906808(5) u	14.649(106) %	stable	0+
Isotope ⁹⁴Mo	93.905085(3) u	9.187(33) %	stable	0+
Isotope ⁹⁶Mo	95.904676(3) u	16.673(8) %	stable	0+
Isotope ⁹⁷Mo	96.906018(3) u	9.582(15) %	stable	5/2+
Isotope ⁹⁸Mo	97.905405(3) u	24.292(80) %	stable	0+
Isotope ¹⁰⁰Mo	99.907472(7) u	9.744(65) %	7.3(4) × 10¹⁸ a	0+
Isotope ⁹⁵Mo	94.90583744(13) u	15.873(30) %	stable	5/2+

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 52) and isobaric (same nucleon number A = 94) with Molybdenum-94. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

Z	Isotone N = 52	Isobar A = 94
28	⁸⁰Ni
29	⁸¹Cu
30	⁸²Zn
31	⁸³Ga
32	⁸⁴Ge
33	⁸⁵As
34	⁸⁶Se	⁹⁴Se
35	⁸⁷Br	⁹⁴Br
36	⁸⁸Kr	⁹⁴Kr
37	⁸⁹Rb	⁹⁴Rb
38	⁹⁰Sr	⁹⁴Sr
39	⁹¹Y	⁹⁴Y
40	⁹²Zr	⁹⁴Zr
41	⁹³Nb	⁹⁴Nb
42	⁹⁴Mo	⁹⁴Mo
43	⁹⁵Tc	⁹⁴Tc
44	⁹⁶Ru	⁹⁴Ru
45	⁹⁷Rh	⁹⁴Rh
46	⁹⁸Pd	⁹⁴Pd
47	⁹⁹Ag	⁹⁴Ag
48	¹⁰⁰Cd	⁹⁴Cd
49	¹⁰¹In
50	¹⁰²Sn
51	¹⁰³Sb