Californium — USD27 juta atau Rp355 miliar/gram. The most expensive chemical element ever synthesized only once since its discovery in 1950. Californium 252 is one of the most commonly used radioactive

California (English: Californium) 98th Elemental Elements of Periodic Table California's molecular signal Cf. Isotope All isotopes of the California are radioactive. The most stable isotopes are prepared

Californium $25-27 million per gram and most expensive chemical element ever . It has been synthesized only once since its discovery in 1950.

When I first got into Bitcoin and soon after into other crypto-currencies I didn't have a clue what coin did what, which coins were worth owning...not a clue. So, for the heck of it I tried just randomly