Plutonium is in the family of actinides, period 7.
No, plutonium is not mined. Plutonium can be found accompanying uranium minerals but only in insignificant traces. Plutonium is obtained as an industrial product in nuclear reactors.
Uranium, sometimes plutonium, oxygen
The fossil turritella, a type of marine snail, has been found in rocks that date back to the Paleogene period. This period spanned from approximately 66 to 23 million years ago.
Only a trace of plutonium is naturally found in the earth's crust. And it is always found with uranium because it is made by uranium's spontaneous fission, neutron release, and the subsequent neutron capture by another uranium nucleus to form the plutonium atom. Plutonium is not formed by the death of a star in a super nova like uranium is. Uranium is the heaviest element formed in that event. That's why there isn't any plutonium around as an ore. Just the trace amounts found with uranium. We're lucky there isn't a lot of plutonium around. It is highly toxic owing to its hightly radioactive nature. A link is provided to the Wikipedia article on plutonium.
Plutonium is a by product of nuclear reactions of uranium in a nuclear reactor. An example of reaction is: 23892U + n-------23992U-------23993Np + e--------23994Pu + e
Plutonium is in the family of actinides, period 7.
Plutonium is a member of the actinoids family.
Plutonium is a solid metal.
The atomic number of plutonium is 94.
You can found three short poems about plutonium at this link.
After melting at 639,4 0C plutonium become a liquid.
Plutonium is a solid at room temperature.
In this period plutonium-238 from Russia was cheaper.
An insignificant amount of plutonium exists in nature. Mostly, plutonium is obtained from nuclear reactions caused by humans.
It is in the actinides period (separate lower section of Period 7).
Natural isotopes of plutonium exist only in traces in uranium ores.
No, plutonium is not mined. Plutonium can be found accompanying uranium minerals but only in insignificant traces. Plutonium is obtained as an industrial product in nuclear reactors.