Caesium (IUPAC spelling; also spelled cesium in American English) is a chemical element; it has symbol Cs and atomic number 55. It is a soft, silvery-golden...
93 KB (10,072 words) - 07:28, 12 September 2024
Caesium (55Cs) has 41 known isotopes, the atomic masses of these isotopes range from 112 to 152. Only one isotope, 133Cs, is stable. The longest-lived...
26 KB (1,780 words) - 06:52, 19 September 2024
Caesium-137 (137 55Cs ), cesium-137 (US), or radiocaesium, is a radioactive isotope of caesium that is formed as one of the more common fission products...
36 KB (3,777 words) - 13:13, 14 September 2024
The caesium standard is a primary frequency standard in which the photon absorption by transitions between the two hyperfine ground states of caesium-133...
21 KB (2,519 words) - 16:55, 10 September 2024
Caesium chloride or cesium chloride is the inorganic compound with the formula CsCl. This colorless salt is an important source of caesium ions in a variety...
39 KB (3,421 words) - 14:46, 10 September 2024
Francium (redirect from Eka-caesium)
22 minutes. It is the second-most electropositive element, behind only caesium, and is the second rarest naturally occurring element (after astatine)...
36 KB (4,059 words) - 01:17, 19 August 2024
of caesium are known. Caesium oxide may refer to: Caesium suboxides (Cs7O, Cs4O, and Cs11O3) Caesium monoxide (Cs2O, the most common oxide) Caesium peroxide...
1 KB (144 words) - 16:35, 7 December 2023
chemical elements lithium (Li), sodium (Na), potassium (K), rubidium (Rb), caesium (Cs), and francium (Fr). Together with hydrogen they constitute group 1...
214 KB (23,508 words) - 02:25, 16 September 2024
Second (redirect from 9192631770 cycles of a Caesium atomic clock)
fixed numerical value of the caesium frequency, ΔνCs, the unperturbed ground-state hyperfine transition frequency of the caesium 133 atom, to be 9192631770...
34 KB (3,655 words) - 07:27, 11 September 2024
Caesium heptafluoroxenate is an inorganic compound of caesium, and fluorine, and xenon with the chemical formula CsXeF7. Caesium heptafluoroxenate can...
2 KB (136 words) - 02:21, 16 September 2024