What is more valuable than gold?

As long as its output is less than that of gold, it is generally higher than that of Huang Jingui. That thing which is rare is dear. Platinum is less than gold, so it is more expensive. Some radioactive elements, such as radium, are usually more expensive than gold because they are very rare in nature. Special-purpose metals, such as uranium rings, are even more valuable, not only because of their low yield, but also because they are not obtained by other chemical methods, which often have complex physical processes and often require national efforts to achieve.

Uranium-235 is the material for making atomic bombs. Because it is difficult to purify, like gold, silver and platinum, it can be purified by chemical reaction. Uranium 235 is an isotope of uranium, accounting for only 0.7% of natural uranium. Only 30% of uranium can be used to generate electricity, and more than 80% can be used to build atomic bombs. First, uranium is obtained through chemical reaction, and then high-enriched uranium 235 needs to be obtained through super-strong physical methods (such as molecular membrane filtration, which screens uranium like a sieve, and it takes at least four years for uranium gas to run from one end of the membrane pipeline to the other; There is also a huge strong magnetic field accelerator, which is a common method and takes months or even years to make an atomic bomb. It is conceivable that it is precious. Of course, few countries in the world have the ability to produce nuclear weapons, which is the most critical technology of nuclear weapons.

Plutonium 239 is an important raw material for hydrogen bombs, which is more precious than uranium.