Zirconium-93

Properties and data of the isotope ⁹³Zr.

Contents

General Data

Radioactive Decay

Parent Nuclides

Isotones und Isobares

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

General data

Name of the isotope:Zirconium-93; Zr-93Symbol:⁹³Zr or 9340ZrMass number A:93 (= number of nucleons)Atomic number Z:40 (= number of protons)Neutrons N:53Nucleon pairing (Z - N):even - oddNuclear ratio (N/Z ratio):1.325 (= neutron-proton ratio)Neutron excess (N-Z):13Isotopic mass:92.9064706(5) u (atomic weight of Zirconium-93)Nuclide mass:92.8845284 u (calculated nuclear mass without electrons)Mass excess:-87.12207 MeVMass defect:0.865771228 u (per nucleus)Nuclear binding energy:806.46070425 MeV (per nucleus)
8.67162048 MeV (average binding energy per nucleon)Separation energy:S_N = 6.7343(4) MeV (first neutron)
S_P = 9.595(9) MeV (first proton)Half-life:1.61(5) × 10⁶ aDecay constant λ:1.365189621719 × 10^-14 s^-1Specific activity α:89362654.375222 Bq g^-1
0.002415206875006 Ci g^-1Spin and parity:
(nuclear angular momentum)5/2+Year of discovery:1950

Radioactive Decay

Half-life T_½ = 1.61(5) × 10⁶ a respectively 5.077296 × 10¹³ seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
β^-	⁹³Nb	100 %	0.098(15) MeV

Parent Nuclides

Direct parent isotope is: ⁹³Y.

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 53) and isobaric (same nucleon number A = 93) with Zirconium-93. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

Z	Isotone N = 53	Isobar A = 93
29	⁸²Cu
30	⁸³Zn
31	⁸⁴Ga
32	⁸⁵Ge
33	⁸⁶As
34	⁸⁷Se	⁹³Se
35	⁸⁸Br	⁹³Br
36	⁸⁹Kr	⁹³Kr
37	⁹⁰Rb	⁹³Rb
38	⁹¹Sr	⁹³Sr
39	⁹²Y	⁹³Y
40	⁹³Zr	⁹³Zr
41	⁹⁴Nb	⁹³Nb
42	⁹⁵Mo	⁹³Mo
43	⁹⁶Tc	⁹³Tc
44	⁹⁷Ru	⁹³Ru
45	⁹⁸Rh	⁹³Rh
46	⁹⁹Pd	⁹³Pd
47	¹⁰⁰Ag	⁹³Ag
48	¹⁰¹Cd
49	¹⁰²In
50	¹⁰³Sn
51	¹⁰⁴Sb
52	¹⁰⁵Te