Zinc-54

Properties and data of the isotope ⁵⁴Zn.

Contents

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

General data

Name of the isotope:Zinc-54; Zn-54Symbol:⁵⁴Zn or 5430ZnMass number A:54 (= number of nucleons)Atomic number Z:30 (= number of protons)Neutrons N:24Nucleon pairing (Z - N):even - evenNuclear ratio (N/Z ratio):0.8 (= neutron-proton ratio)Neutron excess (N-Z):-6Isotopic mass:53.99327(43) u (atomic weight of Zinc-54)Nuclide mass:53.9768131 u (calculated nuclear mass without electrons)Mass excess:-6.26895 MeVMass defect:0.449438944 u (per nucleus)Nuclear binding energy:418.6496797 MeV (per nucleus)
7.75277185 MeV (average binding energy per nucleon)Separation energy:
S_P = 0.29(64) MeV (first proton)Half-life:1.59 msDecay constant λ:435.94162299368 s^-1Specific activity α:4.953399736561 × 10⁺²⁴ Bq g^-1
1.338756685557 × 10⁺¹⁴ Ci g^-1Spin and parity:
(nuclear angular momentum)0+Mirror nucleus:Chromium-54Year of discovery:2005

Radioactive Decay

Half-life T_½ = 1.59 ms respectively 1.59 × 10^-3 seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
2p	⁵²Ni

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 24) and isobaric (same nucleon number A = 54) with Zinc-54. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

Z	Isotone N = 24	Isobar A = 54
10	³⁴Ne
11	³⁵Na
12	³⁶Mg
13	³⁷Al
14	³⁸Si
15	³⁹P
16	⁴⁰S
17	⁴¹Cl
18	⁴²Ar	⁵⁴Ar
19	⁴³K	⁵⁴K
20	⁴⁴Ca	⁵⁴Ca
21	⁴⁵Sc	⁵⁴Sc
22	⁴⁶Ti	⁵⁴Ti
23	⁴⁷V	⁵⁴V
24	⁴⁸Cr	⁵⁴Cr
25	⁴⁹Mn	⁵⁴Mn
26	⁵⁰Fe	⁵⁴Fe
27	⁵¹Co	⁵⁴Co
28	⁵²Ni	⁵⁴Ni
29	⁵³Cu	⁵⁴Cu
30	⁵⁴Zn	⁵⁴Zn