Neon-30

Properties and data of the isotope ³⁰Ne.

Contents

Neon-30 is a radioisotope of the chemical element neon, which has 20 neutrons in its atomic nucleus in addition to the element-specific 10 protons; the sum of the number of these atomic nucleus building blocks results in a mass number of 30. The very short-lived, only artificially produced, unstable and thus radioactive nuclide has no practical significance; the study of ³⁰Ne is exclusively for academic purposes and experimental research.

According to a report from 1985, the first observation of the neutron-rich isotope was made by irradiating a tantalum target with Argon-40 ions accelerated to 44 MeV/u [1].

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

General data

Name of the isotope:Neon-30; Ne-30Symbol:³⁰Ne or 3010NeMass number A:30 (= number of nucleons)Atomic number Z:10 (= number of protons)Neutrons N:20Nucleon pairing (Z - N):even - evenNuclear ratio (N/Z ratio):2 (= neutron-proton ratio)Neutron excess (N-Z):10Isotopic mass:30.024990(270) u (atomic weight of Neon-30)Nuclide mass:30.0195042 u (calculated nuclear mass without electrons)Mass excess:23.27804 MeVMass defect:0.22655864 u (per nucleus)Nuclear binding energy:211.03801381 MeV (per nucleus)
7.03460046 MeV (average binding energy per nucleon)Separation energy:S_N = 3.191(294) MeV (first neutron)
S_P = 24.159(583) MeV (first proton)Half-life:7.22(18) msDecay constant λ:96.003764620491 s^-1Specific activity α:1.927160645429 × 10⁺²⁴ Bq g^-1
52085422849443 Ci g^-1Spin and parity:
(nuclear angular momentum)0+Year of discovery:1985

Radioactive Decay

Half-life T_½ = 7.22(18) ms respectively 7.22 × 10^-3 seconds s.

Decay mode	Daughter	Probability	Decay energy
β^-	³⁰Na	78.1(46) %	14.81(25) MeV
β^-, n	²⁹Na	13(4) %	12.529(253) MeV
β^-, 2n	²⁸Na	8.9(23) %

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 20) and isobaric (same nucleon number A = 30) with Neon-30. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

Z	Isotone N = 20	Isobar A = 30
8	²⁸O
9	²⁹F	³⁰F
10	³⁰Ne	³⁰Ne
11	³¹Na	³⁰Na
12	³²Mg	³⁰Mg
13	³³Al	³⁰Al
14	³⁴Si	³⁰Si
15	³⁵P	³⁰P
16	³⁶S	³⁰S
17	³⁷Cl	³⁰Cl
18	³⁸Ar	³⁰Ar
19	³⁹K
20	⁴⁰Ca
21	⁴¹Sc
22	⁴²Ti
23	⁴³V
24	⁴⁴Cr
25	⁴⁵Mn
26	⁴⁶Fe
27	⁴⁷Co
28	⁴⁸Ni

External data and identifiers

Adopted Levels, Gammas:NuDat 30Ne

Literature and References

[1] - M. Langevin, E. Quiniou, M. Bernas, J. Galin et al.:
Production of neutron-rich nuclei at the limits of particles stability by fragmentation of 44 MeVu ⁴⁰Ar projectiles.
In: Physics Letters B, 150(1-3), (1985), DOI 10.1016/0370-2693(85)90140-6.

[2] - H. N. Liu, J. Lee, P. Doornenbal et al.:
Intruder configurations in the ground state of ³⁰Ne.
In: Physics Letters B, 767, (2017), DOI 10.1016/j.physletb.2017.01.052.

[3] - D. Chrisman, A. N. Kuchera, T. Baumann et al.:
Neutron-unbound states in ³¹Ne.
In: Physical Review C, 104, 034313, (2021), DOI 10.1103/PhysRevC.104.034313.