need are three isotopes with the following properties. (1) An unstable isotope. This should have a fairly long half-life if it is to be of any use in dating...
6 KB (555 words) - 02:58, 26 October 2017
lanthanoid metal, these elements are not rare. Indeed cerium is abundant in Earth's crust.) Many of them do not occur naturally, but are instead created...
8 KB (1,201 words) - 21:35, 6 January 2021
[1]: Scandium (Sc) Yttrium (Y) Lanthanum (La) Cerium (Ce) Praseodymium (Pr) Neodymium (Nd) Promethium (Pm) Samarium (Sm) Europium (Eu) Gadolinium (Gd)...
12 KB (2,019 words) - 13:15, 8 September 2022
sequence of events in which one isotope decays to another via an intermediate sequence of unstable isotopes. Article: Radioactive decay. The erosion of fine...
121 KB (13,022 words) - 14:12, 12 February 2023
e.g. 80 kVp with alternatively no added filtration and a cerium or samarium filter. Cerium has a K absorption edge at 40.4 keV, and samarium at 46.8...
21 KB (2,791 words) - 05:21, 7 October 2022
table (Iodine|I, Xenon|Xe, Caesium|Cs, Barium|Ba, Lanthanum|La, Cerium|Ce, Nd). Many of the fission products are either non-radioactive or only short-lived...
23 KB (3,331 words) - 13:32, 26 September 2019
elements. (**) Most common oxidation states, not an exhaustive list. Atomic weights in parentheses are the atomic weights for the most stable isotope....
8 KB (47 words) - 09:59, 15 February 2021
Typical indicators of sensitivity are Rhodium levels, Cerium/Oxide ratios and DI water blanks. One of the most frequent forms of routine maintenance...
26 KB (4,109 words) - 23:03, 15 September 2020
without color), see this. Atomic masses in brackets are the most stable isotope. Elements 103-118 don't have the same atomic [weight] represented everywhere...
20 KB (98 words) - 01:33, 22 April 2024
Element Hydrogen (denoted as H) is a set of atoms that have one proton in their nuclei. This set has 3 subsets (Isotopes): Protium or Hydrogen-1 (the first...
19 KB (1,495 words) - 23:53, 30 December 2022
*** This atomic mass is only estimated Atomic masses in brackets are the most stable isotope....
20 KB (15 words) - 08:43, 5 April 2021
printed with only black ink. Click Printable Version on the left under "Toolbox" before printing. Atomic masses in brackets are the most stable isotope....
10 KB (78 words) - 18:04, 7 June 2024
e.g. 80 kV with alternatively no added filtration and a cerium or samarium filter. Cerium has a K absorption edge at 40.4 keV, and samarium at 46.8...
120 KB (16,084 words) - 00:42, 2 March 2024
subjected to neutron irradiation, which converts any of the potassium-39 isotopes, to argon-39 isotopes a gas that will be trapped within the crystal (this...
10 KB (223,178 words) - 20:44, 11 January 2023
indefinitely. Other isotopes are unstable, meaning that they are radioactive. They will undergo nuclear reactions to become a more stable isotope. Some elements...
16 KB (119,629 words) - 16:11, 11 June 2015
produced pure cerium for the first time in 1825. The word Cer, like the recently discovered planet Ceres, comes from the Roman goddess of agriculture and...
49 KB (4,695 words) - 13:50, 4 October 2023
{split} A table with the basic properties of all nuclides. Legend...
177 KB (11 words) - 05:18, 6 March 2024
to xenon have multiple stable isotopes. Radon has no stable isotopes; its longest-lived isotope, 222Rn, has a half-life of 3.8 days and decays to form helium...
10 KB (171,283 words) - 17:02, 3 May 2015
hydrogen, but because they differ in the number of neutrons they are different isotopes. Some isotopes are radioactive, which means that they decay, or...
6 KB (36,997 words) - 06:58, 23 July 2023
phosgene cadalk solkiyd....cadmium sulfide cadalk....cadmium, Cd caelk....cerium, Ce caenheolkiyd....formaldehyde caenolkiyd....C2O, carbon dioxide cafelk...
1.97 MB (150,039 words) - 21:37, 22 June 2024