Aluminium-26 (²⁶Al)

Data nuklida

Unsur

Aluminium (Al, Z = 13)

Nomor massa (A)

26

Proton (Z)

13

Neutron (N)

13

Massa atom

25.986891876 ± 0.000000071 u

Waktu paruh

717 ribu tahun (± 24 ribu tahun)

Mode peluruhan

Peluruhan beta plus (β⁺) ( 100 %)

Inti anak

Magnesium-26 (²⁶Mg)

Tahun penemuan

1934

Sumber data

IAEA Atomic Mass Data Center (NUBASE) and IUPAC CIAAW, via PubChem

Kegunaan isotop aluminium

• 26Al is a radioactive isotope (half-life of 7.1×105 years) that can be detected at the ultra-trace level (attogram range; 10−18 g levels) using accelerator mass spectrometry. 26Al is used as a tracer to study the uptake, distribution, and retention of aluminium in plants, animals, and humans under different physiological conditions,.
• 26Al is produced from spallation reactions of protons, produced by cosmic rays, on argon. 26Al has been used for dating geological samples, such as marine sediments, manganese nodules, rocks, and meteorites,. The abundances of 26Al to 10Be have been used to study erosion and transport of soil and sediments on a thousand- to million-year time scale, because production rates of 26Al to 10Be are greatest at the surface and decrease exponentially with depth (Fig. IUPAC.13.1),. Intense cosmic-ray bombardment in space produces 26Al in meteorites and other bodies, such as the Moon. After a meteorite falls to Earth, 26Al production ceases due to atmospheric shielding; the decay of 26Al to 26Mg has been used to determine the terrestrial age of a meteorite (i.e. the time elapsed since the meteorite fell to Earth).

Isotop aluminium lainnya

²¹Al, ²²Al, ²³Al, ²⁴Al, ²⁵Al, ²⁷Al, ²⁸Al, ²⁹Al, ³⁰Al, ³¹Al, ³²Al, ³³Al, ³⁴Al, ³⁵Al, ³⁶Al, ³⁷Al, ³⁸Al, ³⁹Al, ⁴⁰Al, ⁴¹Al, ⁴²Al, ⁴³Al

Pelajari

Kimia inti Simulasi peluruhan ²⁶Al Bagan nuklida