Californium-252 is the most expensive substance in the world
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Californium-252 is the most expensive substance in the world

A gram of californium-252 costs more than $27 million per gram.

Californium-252 is a radioactive isotope of the californium element with the ability to emit neutrons. This makes it an important neutron source for a variety of applications, from nuclear reactors to material scanning devices. Source

Science & Technology Radioactive Isotopes

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