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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.
A major advantage is that this gas is noncombustible. But the use of helium has some disadvantages, too: The diffusion issue shared with hydrogen (though, as helium's molecular radius (138 pm) is smaller, it diffuses through more materials than hydrogen [4]). Helium is expensive. Although abundant in the universe, helium is very scarce on Earth.
Helium is typically produced by separating it from natural gas, and radon is isolated from the radioactive decay of radium compounds. [13] The prices of the noble gases are influenced by their natural abundance, with argon being the cheapest and xenon the most expensive.
Helium is the only element cold enough to keep MRI machines cool enough to function. Without it, doctors lose a valuable imaging tool. The world is running out of helium. Helium is the only ...
Helium is a commonly used carrier gas for gas chromatography. The age of rocks and minerals that contain uranium and thorium can be estimated by measuring the level of helium with a process known as helium dating. [28] [30] Helium at low temperatures is used in cryogenics and in certain cryogenic applications.
The most expensive things in the world come at a high cost but are worth it for some. Look at some of these items that are pricier than anything like them.
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