Potassium-40
Potassium-40 (40K) is a radioactive isotope of potassium which has a long half-life of 1.251×109 years. It makes up 0.012% (120 ppm) of the total amount of potassium found in nature. Potassium-40 is a rare example of an isotope that undergoes both types of beta decay. In about 89.28% of events, it decays to calcium-40 (40Ca) with emission of a beta particle (β−, an electron) with a maximum energy of 1.31 MeV and an antineutrino. In about 10.72% of events, it decays to argon-40 (40Ar) by electron capture (EC), with the emission of a neutrino and then a 1.460 MeV gamma ray. The radioactive decay of this particular isotope explains the large abundance of argon (nearly 1%) in the Earth's atmosphere, as well as prevalence of 40Ar over other isotopes. Very rarely (0.001% of events), it decays to
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Potassium-40
Potassium-40 (40K) is a radioactive isotope of potassium which has a long half-life of 1.251×109 years. It makes up 0.012% (120 ppm) of the total amount of potassium found in nature. Potassium-40 is a rare example of an isotope that undergoes both types of beta decay. In about 89.28% of events, it decays to calcium-40 (40Ca) with emission of a beta particle (β−, an electron) with a maximum energy of 1.31 MeV and an antineutrino. In about 10.72% of events, it decays to argon-40 (40Ar) by electron capture (EC), with the emission of a neutrino and then a 1.460 MeV gamma ray. The radioactive decay of this particular isotope explains the large abundance of argon (nearly 1%) in the Earth's atmosphere, as well as prevalence of 40Ar over other isotopes. Very rarely (0.001% of events), it decays to
has abstract
Draslík-40 (40K) je radioizoto ...... eny jsou pozitron a neutrino).
@cs
El potasio 40 (40K) es un isót ...... positrón (β+) y un neutrino.
@es
El potassi 40 (40K o K-40) és ...... t un positró (β+) i un neutrí.
@ca
Kalium-40 of 40K is een onstab ...... bedraagt ongeveer 265,4 kBq/g.
@nl
Kа́лий-40 (лат. Kalium-40) — н ...... в 1905 году Дж. Дж. Томсоном.
@ru
Le potassium 40, noté 40K, est ...... ues rouges en petite quantité.
@fr
O potássio-40 (40K) é um isóto ...... pósitron (β + ) e um neutrino.
@pt
Potassium-40 (40K) is a radioa ...... positron (β+) and a neutrino.
@en
Калій-40 — радіоактивний ізото ...... ію дорівнює приблизно 31 Бк/г.
@uk
カリウム40 (Potassium-40,40K) は天然カ ...... 元素であることから生体の内部被曝の最大の要因ともなっている。
@ja
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13,677,688
page length (characters) of wiki page
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1,002,799,860
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abundance
after
argon-40, calcium-40, Stable
@en
before
—
@en
decay energy
decay mass
decay mode
decay product
Argon-40
@en
Calcium-40
@en
decay symbol
Ar
@en
Ca
@en
element
potassium
@en
heavier
image caption
image caption
@en
lighter
mass
3.996399848e+1
mass number
num neutrons
num protons
parent
Primordial nuclide
@en
parent symbol
Primordial
@en
symbol
K
@en
wikiPageUsesTemplate
hypernym
type
comment
Draslík-40 (40K) je radioizoto ...... eny jsou pozitron a neutrino).
@cs
El potasio 40 (40K) es un isót ...... se encuentra en la naturaleza.
@es
El potassi 40 (40K o K-40) és ...... t un positró (β+) i un neutrí.
@ca
Kalium-40 of 40K is een onstab ...... bedraagt ongeveer 265,4 kBq/g.
@nl
Kа́лий-40 (лат. Kalium-40) — н ...... в 1905 году Дж. Дж. Томсоном.
@ru
Le potassium 40, noté 40K, est ...... ues rouges en petite quantité.
@fr
O potássio-40 (40K) é um isóto ...... m 1,33 MeV, e um antineutrino.
@pt
Potassium-40 (40K) is a radioa ...... .001% of events), it decays to
@en
Калій-40 — радіоактивний ізото ...... ію дорівнює приблизно 31 Бк/г.
@uk
カリウム40 (Potassium-40,40K) は天然カ ...... 元素であることから生体の内部被曝の最大の要因ともなっている。
@ja
label
Draslík-40
@cs
Kalium-40
@nl
Potasio 40
@es
Potassi 40
@ca
Potassium 40
@fr
Potassium-40
@en
Potássio-40
@pt
Калий-40
@ru
Калій-40
@uk
カリウム40
@ja