Yttrium-90

Yttrium-90
General
Symbol90Y
Namesyttrium-90
Protons (Z)39
Neutrons (N)51
Nuclide data
Half-life (t1/2)64.60±0.43 h
Isotopes of yttrium
Complete table of nuclides

Yttrium-90 (90
Y
) is a radioactive isotope of yttrium. Yttrium-90 has found a wide range of uses in radiation therapy to treat some forms of cancer. Along with other isotopes of yttrium, it is sometimes called radioyttrium.