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For example, francium chloride would be produced by the reaction of francium and chlorine. Francium chloride has been studied as a pathway to separate francium from other elements, by using the high vapour pressure of the compound, although francium fluoride would have a higher vapour pressure. [3]
Francium chloride is a radioactive chemical compound with the formula FrCl. It is a salt predicted to be a white solid and is soluble in water. It is a salt predicted to be a white solid and is soluble in water.
[11] [10] The density of francium is expected to be around 2.48 g/cm 3 (Mendeleev's method extrapolates 2.4 g/cm 3). [ 11 ] Linus Pauling estimated the electronegativity of francium at 0.7 on the Pauling scale , the same as caesium; [ 13 ] the value for caesium has since been refined to 0.79, but there are no experimental data to allow a ...
As a result, element 173 is expected to behave chemically like an alkali metal, and one that might be far more reactive than even caesium (francium and element 119 being less reactive than caesium due to relativistic effects): [90] [19] the calculated ionisation energy for element 173 is 3.070 eV, [91] compared to the experimentally known 3.894 ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 28 January 2025. Hypothetical chemical element, symbol Uue and atomic number 119 Chemical element with atomic number 119 (Uue) Ununennium, 119 Uue Theoretical element Ununennium Pronunciation / ˌ uː n. uː n ˈ ɛ n i ə m / ⓘ (OON -oon- EN -ee-əm) Alternative names element 119, eka-francium ...
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The claim that francium has a lower electronegativity than caesium is widely, though not universally, repeated: this would be expected on the basis of periodicity, but measurements show that the ionization energy of francium is higher (4.0712 eV; Andreev, S.V.; Letokhov, V.S.; Mishin, V.I., Laser resonance photoionization spectroscopy of ...
Theory No. 2: Luka Dončić was a flight risk. Believability: 2 out of 5 stars. In the wake of the blockbuster deal, Harrison floated this idea in an interview with the Dallas Morning News, saying ...