-
Trace 218Rn 86 132 218.0056011(25) 33.75(15) ms α 214Po 0+
Trace 219Rn
Actinon Actinium emanation 86 133 219.0094787(23) 3.96(1) s α 215Po 5/2+ Trace...
- element's
emanation was
considered to a
separate substance: radon, thoron, and
actinon. Sir
William Ramsay and
Robert Whytlaw-Gray
considered that the radioactive...
- (T), are
still in use today, as is
thoron (Tn) for radon-220 (though not
actinon; An
usually instead means a
generic actinide).
Heavy water and
other deuterated...
- that time,
radon only
referred to the
isotope 222Rn,
whereas the
names actinon and
thoron denoted 219Rn and 220Rn, respectively. In 1957, the International...
- 979 219Rn 219At α 97.00% β− 3.00% 56 s 6.275 1.700 215Bi 219Rn 219Rn An
Actinon,
Actinium Emanation α 3.96 s 6.946 215Po 215Bi β− 7.6 min 2.250 215Po 215Po...
-
radon springs afford ample bathing, now
daily used by 1,200
guests at the "
Actinon" bathhouse. On 18
January 2005, Saxony's
state government bestowed upon...
