主要な元素同位体 - INI

[item.hydrogen-isotopes]
code=1
slug=hydrogen-isotopes
name=水素の同位体
description=水素の3つの同位体（プロチウム、重水素、トリチウム）。
element_atomicNumber=1
element_nameEn=Hydrogen
element_nameJa=水素
element_symbol=H
isotopes=[{"massNumber":1,"symbol":"¹H","name":"Protium","stability":"stable","naturalAbundance":0.99985,"halfLife":null},{"massNumber":2,"symbol":"²H","name":"Deuterium","stability":"stable","naturalAbundance":0.000115,"halfLife":null},{"massNumber":3,"symbol":"³H","name":"Tritium","stability":"radioactive","naturalAbundance":0,"halfLife":"12.32 years"}]

[item.helium-isotopes]
code=2
slug=helium-isotopes
name=ヘリウムの同位体
description=ヘリウムの2つの安定同位体（ヘリウム3、ヘリウム4）。
element_atomicNumber=2
element_nameEn=Helium
element_nameJa=ヘリウム
element_symbol=He
isotopes=[{"massNumber":3,"symbol":"³He","name":"Helium-3","stability":"stable","naturalAbundance":0.00000134,"halfLife":null},{"massNumber":4,"symbol":"⁴He","name":"Helium-4","stability":"stable","naturalAbundance":0.99999866,"halfLife":null}]

[item.carbon-isotopes]
code=6
slug=carbon-isotopes
name=炭素の同位体
description=炭素の2つの安定同位体と放射性同位体炭素14。
element_atomicNumber=6
element_nameEn=Carbon
element_nameJa=炭素
element_symbol=C
isotopes=[{"massNumber":12,"symbol":"¹²C","name":"Carbon-12","stability":"stable","naturalAbundance":0.9893,"halfLife":null},{"massNumber":13,"symbol":"¹³C","name":"Carbon-13","stability":"stable","naturalAbundance":0.0107,"halfLife":null},{"massNumber":14,"symbol":"¹⁴C","name":"Carbon-14","stability":"radioactive","naturalAbundance":0,"halfLife":"5,700 years"}]

[item.nitrogen-isotopes]
code=7
slug=nitrogen-isotopes
name=窒素の同位体
description=窒素の2つの安定同位体（窒素14、窒素15）。
element_atomicNumber=7
element_nameEn=Nitrogen
element_nameJa=窒素
element_symbol=N
isotopes=[{"massNumber":14,"symbol":"¹⁴N","name":"Nitrogen-14","stability":"stable","naturalAbundance":0.99636,"halfLife":null},{"massNumber":15,"symbol":"¹⁵N","name":"Nitrogen-15","stability":"stable","naturalAbundance":0.00364,"halfLife":null}]

[item.oxygen-isotopes]
code=8
slug=oxygen-isotopes
name=酸素の同位体
description=酸素の3つの安定同位体（酸素16、酸素17、酸素18）。
element_atomicNumber=8
element_nameEn=Oxygen
element_nameJa=酸素
element_symbol=O
isotopes=[{"massNumber":16,"symbol":"¹⁶O","name":"Oxygen-16","stability":"stable","naturalAbundance":0.99757,"halfLife":null},{"massNumber":17,"symbol":"¹⁷O","name":"Oxygen-17","stability":"stable","naturalAbundance":0.00038,"halfLife":null},{"massNumber":18,"symbol":"¹⁸O","name":"Oxygen-18","stability":"stable","naturalAbundance":0.00205,"halfLife":null}]

[item.iron-isotopes]
code=26
slug=iron-isotopes
name=鉄の同位体
description=鉄の4つの安定同位体（鉄54、鉄56、鉄57、鉄58）。
element_atomicNumber=26
element_nameEn=Iron
element_nameJa=鉄
element_symbol=Fe
isotopes=[{"massNumber":54,"symbol":"⁵⁴Fe","name":"Iron-54","stability":"stable","naturalAbundance":0.05845,"halfLife":null},{"massNumber":56,"symbol":"⁵⁶Fe","name":"Iron-56","stability":"stable","naturalAbundance":0.91754,"halfLife":null},{"massNumber":57,"symbol":"⁵⁷Fe","name":"Iron-57","stability":"stable","naturalAbundance":0.02119,"halfLife":null},{"massNumber":58,"symbol":"⁵⁸Fe","name":"Iron-58","stability":"stable","naturalAbundance":0.00282,"halfLife":null}]

[item.lead-isotopes]
code=82
slug=lead-isotopes
name=鉛の同位体
description=鉛の4つの安定同位体（鉛204、鉛206、鉛207、鉛208）。
element_atomicNumber=82
element_nameEn=Lead
element_nameJa=鉛
element_symbol=Pb
isotopes=[{"massNumber":204,"symbol":"²⁰⁴Pb","name":"Lead-204","stability":"stable","naturalAbundance":0.014,"halfLife":null},{"massNumber":206,"symbol":"²⁰⁶Pb","name":"Lead-206","stability":"stable","naturalAbundance":0.241,"halfLife":null},{"massNumber":207,"symbol":"²⁰⁷Pb","name":"Lead-207","stability":"stable","naturalAbundance":0.221,"halfLife":null},{"massNumber":208,"symbol":"²⁰⁸Pb","name":"Lead-208","stability":"stable","naturalAbundance":0.524,"halfLife":null}]

[item.uranium-isotopes]
code=92
slug=uranium-isotopes
name=ウランの同位体
description=ウランの3つの天然放射性同位体（ウラン238、ウラン235、ウラン234）。
element_atomicNumber=92
element_nameEn=Uranium
element_nameJa=ウラン
element_symbol=U
isotopes=[{"massNumber":238,"symbol":"²³⁸U","name":"Uranium-238","stability":"radioactive","naturalAbundance":0.9927,"halfLife":"4.468 billion years"},{"massNumber":235,"symbol":"²³⁵U","name":"Uranium-235","stability":"radioactive","naturalAbundance":0.0072,"halfLife":"704 million years"},{"massNumber":234,"symbol":"²³⁴U","name":"Uranium-234","stability":"radioactive","naturalAbundance":0.000055,"halfLife":"245,500 years"}]

[item.plutonium-isotopes]
code=94
slug=plutonium-isotopes
name=プルトニウムの同位体
description=プルトニウムの主な人工放射性同位体（プルトニウム238、239、240、241、242、244）。
element_atomicNumber=94
element_nameEn=Plutonium
element_nameJa=プルトニウム
element_symbol=Pu
isotopes=[{"massNumber":238,"symbol":"²³⁸Pu","name":"Plutonium-238","stability":"radioactive","naturalAbundance":0,"halfLife":"87.7 years"},{"massNumber":239,"symbol":"²³⁹Pu","name":"Plutonium-239","stability":"radioactive","naturalAbundance":0,"halfLife":"24,110 years"},{"massNumber":240,"symbol":"²⁴⁰Pu","name":"Plutonium-240","stability":"radioactive","naturalAbundance":0,"halfLife":"6,560 years"},{"massNumber":241,"symbol":"²⁴¹Pu","name":"Plutonium-241","stability":"radioactive","naturalAbundance":0,"halfLife":"14.4 years"},{"massNumber":242,"symbol":"²⁴²Pu","name":"Plutonium-242","stability":"radioactive","naturalAbundance":0,"halfLife":"373,300 years"},{"massNumber":244,"symbol":"²⁴⁴Pu","name":"Plutonium-244","stability":"radioactive","naturalAbundance":0,"halfLife":"80.8 million years"}]