Being radioactive plutonium disappeared during the time; natural plutonium exist only in traces.
The most common compound of plutonium is plutonium dioxide - PuO2.
Plutonium is a rare element found in trace amounts in nature, primarily as a byproduct of nuclear reactors. It is artificially produced for use in nuclear weapons and reactors. While not abundant naturally, there are stockpiles of plutonium worldwide due to nuclear activities over the past several decades.
- Natural plutonium (plutonium isotopes 238, 239, 240, 244) exist in nature as extremely traces associated with uranium ores- Artificial isotopes of plutonium (the most important being Pu-239) have the origin in nuclear weapons tests
Plutonium is an artificial element; natural plutonium exist only in extremely traces.
Plutonium and xenon are radioactive elements. Plutonium is a synthetic element, while xenon occurs naturally but can also be produced synthetically. Barium and cesium are not synthetic elements but can have radioactive isotopes.
Plutonium has no ores; plutonium exist naturally in extremely traces in uranium ores.
The isotope plutonium-210 doesn't exist.
Radium: Plutonium does not occur naturally, and magnesium has a low density for a metal.
Plutonium exist in nuclear fuels (burned or new fuels of the type U-Pu).
The isotope plutonium-210 doesn't exist.
Depleted plutonium don't exist. For plutonium health hazards see the link below.
Uranium and Plutonium
Any links exist between plutonium and nucleic acids.
The most common compound of plutonium is plutonium dioxide - PuO2.
Natural isotopes of plutonium exist only in traces in uranium ores.
Plutonium is a rare element found in trace amounts in nature, primarily as a byproduct of nuclear reactors. It is artificially produced for use in nuclear weapons and reactors. While not abundant naturally, there are stockpiles of plutonium worldwide due to nuclear activities over the past several decades.
Uranium is a natural chemical element, plutonium is an artificial element (but note that plutonium exist also naturally in the earth crust in extremely low concentrations). Uranium has the atomic number 92 and plutonium 94. The critical mass of uranium is greater than the critical mass of plutonium. The melting and boiling points of U and Pu are different. Uranium has an orthorombic crystalline structure; the structure of plutonium is monoclinic. And many other physical and chemical properties are different.