- Radon-222 (222Rn, Rn-222,
historically radium emanation or radon) is the most
stable isotope of radon, with a half-life of
approximately 3.8 days. It is...
-
waste within a
period of
three hours.
Radium emanation activators,
apparatuses that
would apply radium emanation to water,
started being produced and marketed...
- some
experiments in
which he
noticed that
radium compounds emanate a
radioactive gas he
named "
radium emanation" ("Ra Em"). In 1901,
Rutherford and Harriet...
- from
radium A to
radium G, with the
letter indicating approximately how far they were down the
chain from
their parent 226Ra:
Radium emanation = 222Rn...
-
originally defined as "the
quantity or m**** of
radium emanation in
equilibrium with one gram of
radium (element)", but is
currently defined as 1 Ci =...
-
produced up to that time. The
decay chain of 238U is
commonly called the "
radium series" (sometimes "uranium series").
Beginning with
naturally occurring...
-
small conical gl**** tube (AB)
containing "
radium emanation" (radon), "
radium A" (actual
radium), and "
radium C" (bi****h-214); its open end
sealed with...
-
Radium,
Rutherford has
proposed a new and
convenient system of nomenclature. The
first product of the
change of the
radium emanation is
named radium A...
-
Curie produced hollow needles containing "
radium emanation", a colourless,
radioactive gas
given off by
radium,
later identified as radon, to be used for...
-
originally defined as "the
quantity or m**** of
radium emanation in
equilibrium with one gram of
radium (element)". Today, the
curie is
defined as 3.7×1010...