Uraan-235

Uraan-235 (U-235) is 'n isotoop van uraan wat ongeveer 0,72% van natuurlike uraan beslaan. Anders as uraan-238 is hierdie isotoop kernsplytbaar; dit kan wel onderhou word deur die splitsing van atoomkerne in 'n kernkettingreaksie.

'n Skyf uraan wat met uraan-235 verryk is.

Natuurlike vervalketting

${\begin{array}{r}{\ce {^{235}_{92}U->[\alpha ][7.038\times 10^{8}\ {\ce {y}}]{^{231}_{90}Th}->[\beta ^{-}][25.52\ {\ce {h}}]{^{231}_{91}Pa}->[\alpha ][3.276\times 10^{4}\ {\ce {y}}]{^{227}_{89}Ac}}}{\begin{Bmatrix}{\ce {->[98.62\%\beta ^{-}][21.773\ {\ce {y}}]{^{227}_{90}Th}->[\alpha ][18.718\ {\ce {d}}]}}\\{\ce {->[1.38\%\alpha ][21.773\ {\ce {y}}]{^{223}_{87}Fr}->[\beta ^{-}][21.8\ {\ce {min}}]}}\end{Bmatrix}}{\ce {^{223}_{88}Ra->[\alpha ][11.434\ {\ce {d}}]{^{219}_{86}Rn}}}\\{\ce {^{219}_{86}Rn->[\alpha ][3.96\ {\ce {s}}]{^{215}_{84}Po}->[\alpha ][1.778\ {\ce {ms}}]{^{211}_{82}Pb}->[\beta ^{-}][36.1\ {\ce {min}}]{^{211}_{83}Bi}}}{\begin{Bmatrix}{\ce {->[99.73\%\alpha ][2.13\ {\ce {min}}]{^{207}_{81}Tl}->[\beta ^{-}][4.77\ {\ce {min}}]}}\\{\ce {->[0.27\%\beta ^{-}][2.13\ {\ce {min}}]{^{211}_{84}Po}->[\alpha ][0.516\ {\ce {s}}]}}\end{Bmatrix}}{\ce {^{207}_{82}Pb_{(stabiel)}}}\end{array}}$

Sien ook

• Valindaba, Suid-Afrikaanse aanleg waar uraan-235 vervaardig is.

Ligter: uraan-234	Uraan-235 is 'n isotoop van uraan	Swaarder: uraan-236
Vervalproduk van: protaktinium-235 neptunium-235 plutonium-239	Vervalketting van uraan-235	Verval na: torium-231