Actinium (ak-tin-nee-əm)
is a radioactive chemical element with the symbol Ac and it
has an atomic number of 89. The atomic weight is
227.
Things you might not know about
Actinium:
- Its current applications include a neutron
source and an agent for radiation therapy targeting cancer cells in
the body.
- Owing to its strong radioactivity, actinium
glows in the dark with a pale blue light.
- Due to its scarcity, high price and
radioactivity, actinium has no significant industrial use.
See GC2XAY2 -
Hydrogen, for an explanation about this series of
caches.