Being radioactive plutonium disappeared during the time; natural plutonium exist only in traces.
Plutonium is an artificial element; natural plutonium exist only in extremely traces.
Natural plutonium exist only in extremely traces (parts per trillion) in uranium ores.
Plutonium don't exist in consumer products. For copper applications see the link below.
The isotope plutonium 224 don't exist.
- 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 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.
Plutonium is an artificial element; natural plutonium exist only in extremely traces.
Depleted plutonium don't exist. For plutonium health hazards see the link below.
Uranium and Plutonium
Any links exist between plutonium and nucleic acids.
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.
Natural isotopes of plutonium exist only in traces in uranium ores.
Americium is an artificial element (only extremely traces exist naturally on the earth); it is obtained by nuclear reactions (from uranium or plutonium) and a very long and difficult process of separation.