Rubidium-86 (⁸⁶Rb)

Data nuklida

Unsur

Rubidium (Rb, Z = 37)

Nomor massa (A)

86

Proton (Z)

37

Neutron (N)

49

Massa atom

85.911167443 ± 0.000000214 u

Waktu paruh

18,645 hari (± 0,008 hari)

Mode peluruhan

Peluruhan beta minus (β⁻) (≈ 100 %), Penangkapan elektron (ε) ( 0,01 %)

Inti anak

Stronsium-86 (⁸⁶Sr), Kripton-86 (⁸⁶Kr)

Tahun penemuan

1941

Sumber data

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

Kegunaan isotop rubidium

• Due to biological similarities between rubidium and potassium, the radionuclide 86Rb (with a half-life of 18.7 days) is used as a tracer in biological or medical investigations for applications where the half-life of the radioactive-tracer 42K (half-life of 0.5 day) is too short. 86Rb (with a half-life of 18.7 days) has been used measure the metabolism in small vertebrates (Fig. IUPAC.37.1), such as dunnarts (furry, narrow-footed marsupials about the size of a mouse). The advantage of this technique over the standard doubly labelled water method, using water enriched in 2H and 18O, include lower equipment requirements, lower technical expertise, and longer time spans over which measurements can be made. This technique could be very useful for measuring the metabolism of amphibians and insects.

Isotop rubidium lainnya

⁷¹Rb, ⁷²Rb, ⁷³Rb, ⁷⁴Rb, ⁷⁵Rb, ⁷⁶Rb, ⁷⁷Rb, ⁷⁸Rb, ⁷⁹Rb, ⁸⁰Rb, ⁸¹Rb, ⁸²Rb, ⁸³Rb, ⁸⁴Rb, ⁸⁵Rb, ⁸⁷Rb, ⁸⁸Rb, ⁸⁹Rb, ⁹⁰Rb, ⁹¹Rb, ⁹²Rb, ⁹³Rb, ⁹⁴Rb, ⁹⁵Rb, ⁹⁶Rb, ⁹⁷Rb, ⁹⁸Rb, ⁹⁹Rb, ¹⁰⁰Rb, ¹⁰¹Rb, ¹⁰²Rb, ¹⁰³Rb, ¹⁰⁴Rb

Pelajari

Kimia inti Simulasi peluruhan ⁸⁶Rb Bagan nuklida