Yttrium-96

Properties and data of the isotope ⁹⁶Y.

Contents

General Data

Radioactive Decay

Parent Nuclides

Isotones und Isobares

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

General data

Name of the isotope:Yttrium-96; Y-96Symbol:⁹⁶Y or 9639YMass number A:96 (= number of nucleons)Atomic number Z:39 (= number of protons)Neutrons N:57Nucleon pairing (Z - N):odd - oddNuclear ratio (N/Z ratio):1.4615384615385 (= neutron-proton ratio)Neutron excess (N-Z):18Isotopic mass:95.915903(7) u (atomic weight of Yttrium-96)Nuclide mass:95.8945093 u (calculated nuclear mass without electrons)Mass excess:-78.33585 MeVMass defect:0.88317346000001 u (per nucleus)Nuclear binding energy:822.67077895 MeV (per nucleus)
8.56948728 MeV (average binding energy per nucleon)Separation energy:S_N = 5.198(9) MeV (first neutron)
S_P = 10.505(8) MeV (first proton)Half-life:5.34(5) sDecay constant λ:0.12980284280149 s^-1Specific activity α:8.228326351271 × 10⁺²⁰ Bq g^-1
22238719868.301 Ci g^-1Spin and parity:
(nuclear angular momentum)0-Charge radius:4.3402(99) femtometer fmYear of discovery:1975

Radioactive Decay

Half-life T_½ = 5.34(5) s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
β^-	⁹⁶Zr	100 %	7.103(6) MeV

Parent Nuclides

Direct parent isotope is: ⁹⁶Sr.

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
^96mY	1140(30) keV	9.6(2) s	8+

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 57) and isobaric (same nucleon number A = 96) with Yttrium-96. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

Z	Isotone N = 57	Isobar A = 96
32	⁸⁹Ge
33	⁹⁰As
34	⁹¹Se
35	⁹²Br	⁹⁶Br
36	⁹³Kr	⁹⁶Kr
37	⁹⁴Rb	⁹⁶Rb
38	⁹⁵Sr	⁹⁶Sr
39	⁹⁶Y	⁹⁶Y
40	⁹⁷Zr	⁹⁶Zr
41	⁹⁸Nb	⁹⁶Nb
42	⁹⁹Mo	⁹⁶Mo
43	¹⁰⁰Tc	⁹⁶Tc
44	¹⁰¹Ru	⁹⁶Ru
45	¹⁰²Rh	⁹⁶Rh
46	¹⁰³Pd	⁹⁶Pd
47	¹⁰⁴Ag	⁹⁶Ag
48	¹⁰⁵Cd	⁹⁶Cd
49	¹⁰⁶In	⁹⁶In
50	¹⁰⁷Sn
51	¹⁰⁸Sb
52	¹⁰⁹Te
53	¹¹⁰I
54	¹¹¹Xe
55	¹¹²Cs