-
realized that
ionium and
thorium are
chemically identical. The
symbol Io was used for this
supposed element. (The name is
still used in
ionium–thorium dating...
-
Ionium-thorium
dating is a
technique for
determining the age of
marine sediments based upon the
quantities present of
nearly stable thorium-232 and more...
-
parent of radium, a new
element that he
named ionium. Once the
existence of
isotopes was established,
ionium was
shown to in fact be thorium-230. Although...
- of an
information processing system use to
communicate with each
other Ionium (symbol Io), a
claimed chemical element that was
later realized to be thorium-230...
- radium, "
ionium".
Researchers eventually determined that
ionium was
actually an
isotope of thorium, 230Th.
Soddy asked Hitchins to
investigate ionium. She...
-
several hundred thousand years. A
related method is
ionium–thorium dating,
which measures the
ratio of
ionium (thorium-230) to thorium-232 in
ocean sediment...
-
Hermann wrongly believed ilmenium to be an element. Io
Ionium 65 Demarçay
wrongly believed ionium to be a new element. Was
actually terbium. J
Jodium 53...
- UII
Uranium II 234.041 α 100 % 2.455·105 a 4.8598 230Th 11.6708 230Th Io
Ionium 230.033 α 100 % 7.538·104 a 4.76975 226Ra 16.4406 226Ra Ra
Radium 226.025...
- isotopes: uranium–thorium dating,
based on the
decay of 234U to 230Th, and
ionium–thorium dating,
which measures the
ratio of 232Th to 230Th.
These rely on...
- (actinium-228), and –
independently from
Boltwood – the
mother substance of radium,
ionium (later
identified as thorium-230). In
subsequent years,
mesothorium I ****umed...
