Argon 31

With argon 31 (Argon-31, ³¹Ar), it is isotopic one of argon.

Argon 31
List of nuclides
Summary
Name, sign	Argon 31,31Ar
Neutron	13
Proton	18
Nuclide information
Nature abundance	0
Half-life	0.0144+-0.0006 second
Pro-nuclide	31K (p)
Collapse product	31Cl
I.w.	31.01212(22) u
Spin angular momentum	5/2+
Surplus energy	11290± 210 keV
Binding energy	7.253 keV
Collapse mode	Collapse energy
β+	1.7338 MeV

Table of contents

Summary

³¹Ar is an isotope of argon which is the second lightest while I am known, and a neutron is the proton surplus nucleus that there are 18 protons for 13 [¹]. Therefore various collapse modes mentioning later exist, but all of them are accompanied by a positron emission [²].

³¹Ar has ³²K which is an isotope of lightest potassium in a pro-nuclide. ³²K becomes ³¹Ar by proton release [¹]; [²].

Collapse mode

Six kinds of collapse modes exist, and ³¹Ar relatively produces those all with high probability. Most one occurs with the probability of 63% with a positron emission and one mode which proton release occurs at the same time, and collapses in ³⁰S. Much one occurs with the probability of 28% with a mode collapsing by a simple positron emission in ³¹Cl next. Only this collapse mode understands the only collapse energy and becomes clear with 1.7338MeV [²].

In addition, 0.38% are a positron emission and proton release and alpha decay, and, in 7.2%, in 1.4%, 0.03% collapse by a positron emission and alpha decay by a positron emission and three proton release by a positron emission and two proton release each in ²⁷P in ²⁶Si in ²⁸Si in ²⁹P. Because these decay series is divergence in the decay series of the thing that a part diverges, the end-product is limited to ³¹P, ³⁰Si, ²⁹Si, ²⁸Si, ²⁷Al, six kinds of ²⁶Mg [²].

${\displaystyle \mathrm {^{31}_{18}Ar\ {\xrightarrow[{0.0144\ sec}]{\beta ^{+}}}\ _{17}^{31}Cl}}$ 

${\displaystyle \mathrm {^{31}_{18}Ar\ {\xrightarrow[{0.0144\ sec}]{\beta ^{+},p}}\ _{16}^{30}S}}$ 

${\displaystyle \mathrm {^{31}_{18}Ar\ {\xrightarrow[{0.0144\ sec}]{\beta ^{+},2p}}\ _{15}^{29}P}}$ 

${\displaystyle \mathrm {^{31}_{18}Ar\ {\xrightarrow[{0.0144\ sec}]{\beta ^{+},3p}}\ _{14}^{28}Si}}$ 

${\displaystyle \mathrm {^{31}_{18}Ar\ {\xrightarrow[{0.0144\ sec}]{\beta ^{+},\alpha }}\ _{15}^{31}P}}$ 

${\displaystyle \mathrm {^{31}_{18}Ar\ {\xrightarrow[{0.0144\ sec}]{\beta ^{+},p,\alpha }}\ _{14}^{26}Si}}$ 

Source

[Help]

1. ^ ^{a b} The NUBASE evaluation of nuclear and decay properties National Nuclear Data Center
2. ^ ^{a b c d} 31Ar

Allied item

• Isotope of argon

Light weight: 30Ar	Argon 31 It is an isotope of argon	Weight: 32Ar
32K (p) の collapse product	Argon 31 の decay series	31Cl (β+) 30S (β+,p) 29P (β+,2p) Si28 (β+,3p) 31P (β+,α) 26Si (β+,p,α) I pass and collapse

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