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Francium-223 is the most stable isotope, with a half-life of 21.8 minutes, [8] and it is highly unlikely that an isotope of francium with a longer half-life will ever be discovered or synthesized. [22] Francium-223 is a fifth product of the uranium-235 decay series as a daughter isotope of actinium-227; thorium-227 is the more common daughter. [23]
As of 2020, the most expensive non-synthetic element by both mass and volume is rhodium. It is followed by caesium, iridium and palladium by mass and iridium, gold and platinum by volume. Carbon in the form of diamond can be more expensive than rhodium. Per-kilogram prices of some synthetic radioisotopes range to trillions of dollars.
If anyone finds a reference specifically discussing the issue of the electronegativity of francium, please add it!. --Itub 08:47, 12 April 2007 (UTC) Alright, quick update regarding previous concerns: There is so little reliable information about francium compounds that it doesn't make sense to make a compound section.
Chicago Alinea is not a restaurant — "at least, not in a conventional sense," it's been said. That didn't stop Alinea from ranking 37th on the World's 50 Best Restaurants list in 2019, or, in ...
1. San Francisco, California. Average Meal Price: $15.30 MoneyGeek’s analysis found that San Francisco was the most expensive place to get a burger, fries and soda, with the average meal cost at ...
At the beginning of the pandemic, and as it dragged on into 2020, when people were going nowhere but the grocery store, paparazzi set up shop outside the locations of Los Angeles County chain ...
Chicago and its suburbs is home to 35 Fortune 500 companies and is a transportation and distribution center. Manufacturing, printing, publishing, insurance, transportation, financial trading and services, and food processing also play major roles in the city's economy.
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