Argon-30

Properties and data of the isotope ³⁰Ar.

Content

General data

Name of the isotope:Argon-30; Ar-30Symbol:³⁰Ar or 3018ArMass number A:30 (= number of nucleons)Atomic number Z:18 (= number of protons)Neutrons N:12Isotopic mass:30.02247(22) u (atomic weight of Argon-30)Nuclide mass:30.0125957 u (calculated nuclear mass without electrons)Mass excess:20.93067 MeVMass defect:0.222359568 u (per nucleus)Nuclear binding energy:207.12660343 MeV (per nucleus)
6.90422011 MeV (average binding energy per nucleon)Half-life:10 psDecay constant λ:69314718055.995 s^-1Specific activity α:1.39140998 × 10⁺³³ Bq g^-1
3.760567529729 × 10⁺²² Ci g^-1Spin and parity:
(nuclear angular momentum)0+Mirror nucleus:Magnesium-30

Radioactive Decay

Half-life T_½ = 10 ps respectively 1 × 10^-11 seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
2p	²⁸S	100 %

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 12) and isobaric (same nucleon number A = 30) with Argon-30. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

OZ	Isotone N = 12	Isobar A = 30
4	¹⁶Be
5	¹⁷B
6	¹⁸C
7	¹⁹N
8	²⁰O
9	²¹F	³⁰F
10	²²Ne	³⁰Ne
11	²³Na	³⁰Na
12	²⁴Mg	³⁰Mg
13	²⁵Al	³⁰Al
14	²⁶Si	³⁰Si
15	²⁷P	³⁰P
16	²⁸S	³⁰S
17	²⁹Cl	³⁰Cl
18	³⁰Ar	³⁰Ar