Thorium (90Th) has seven naturally occurring isotopes but none are stable. One isotope, 232Th, is relatively stable, with a half-life of 1.405×1010 years...
49 KB (4,872 words) - 01:05, 16 August 2024
Thorium-232 (232 Th ) is the main naturally occurring isotope of thorium, with a relative abundance of 99.98%. It has a half life of 14 billion years,...
8 KB (656 words) - 23:31, 11 August 2024
divided. All known thorium isotopes are unstable. The most stable isotope, 232Th, has a half-life of 14.05 billion years, or about the age of the universe;...
136 KB (15,975 words) - 05:51, 18 August 2024
observationally stable isotopes: 204Pb, 206Pb, 207Pb, 208Pb. Lead-204 is entirely a primordial nuclide and is not a radiogenic nuclide. The three isotopes lead-206...
30 KB (1,846 words) - 20:11, 12 August 2024
has no stable isotopes. The four naturally occurring isotopes allow a standard atomic weight to be given. Twenty-nine radioisotopes of protactinium have...
16 KB (1,568 words) - 12:24, 27 July 2024
higher melting points. All thorium compounds, including the dioxide, are radioactive because there are no stable isotopes of thorium. Thoria exists as two...
13 KB (1,232 words) - 10:24, 5 February 2024
The thorium fuel cycle is a nuclear fuel cycle that uses an isotope of thorium, 232 Th , as the fertile material. In the reactor, 232 Th is transmuted...
38 KB (3,801 words) - 20:28, 12 May 2024
occurring radioactive element (radioelement) with no stable isotopes. It has two primordial isotopes, uranium-238 and uranium-235, that have long half-lives...
34 KB (3,113 words) - 20:05, 3 August 2024
Unbibium (redirect from Isotopes of unbibium)
results of the Marinov collaboration with regards to their claims of long-lived isotopes of thorium, roentgenium, and unbibium. Current understanding of superheavy...
37 KB (7,066 words) - 03:46, 20 August 2024
Actinide (category Pages that use a deprecated format of the chem tags)
with the isotopes of californium. Prolonged neutron irradiation also produces a long-lived isotope 254Es (t1/2 = 275.5 days). Twenty isotopes of fermium...
130 KB (11,602 words) - 15:30, 15 August 2024