Difference between revisions of "Promethium"
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{{Element | name=Promethium | symbol=Pm | anumber=61 | amass=145 amu | state=Solid | class=Metallic | cstructure=Hexagonal| color=Silvery / Metallic | date=1945 | discname=J.A. Marinsky, L.E. Glendenin and C.D. Coryell | origname=From Prometheus who stole the fire of the sky and gave it to mankind. | uses=Used in highly specialized miniature batteries. | obtained=All the promethium originally present when the Earth formed has disappeared due to radioactive decay. Only very small trace amounts are found in uranium ores as a product of nuclear fission. }} | {{Element | name=Promethium | symbol=Pm | anumber=61 | amass=145 amu | state=Solid | class=Metallic | cstructure=Hexagonal| color=Silvery / Metallic | date=1945 | discname=J.A. Marinsky, L.E. Glendenin and C.D. Coryell | origname=From Prometheus who stole the fire of the sky and gave it to mankind. | uses=Used in highly specialized miniature batteries. | obtained=All the promethium originally present when the Earth formed has disappeared due to radioactive decay. Only very small trace amounts are found in uranium ores as a product of nuclear fission. }} | ||
| − | '''Promethium''' is not known to exist in the earth's crust but a sample was extracted during processing of [[nuclear reactor]] fuel waste in 1963. Promethium salts | + | '''Promethium''' is not known to exist in the earth's crust but a sample was extracted during processing of [[nuclear reactor]] fuel waste in 1963. Promethium salts glow in the dark because they are [[radioactive]]. Promethium is one of the [[rare earth elements]].<ref>https://www.webelements.com/promethium/</ref> |
==References== | ==References== | ||
Latest revision as of 00:44, December 8, 2018
| Promethium | |
|---|---|
| Properties | |
| Atomic symbol | Pm |
| Atomic number | 61 |
| Classification | Metallic |
| Atomic mass | 145 amu |
| Other Information | |
| Date of discovery | 1945 |
| Name of discoverer | J.A. Marinsky, L.E. Glendenin and C.D. Coryell |
| Name origin | From Prometheus who stole the fire of the sky and gave it to mankind. |
| Uses | Used in highly specialized miniature batteries. |
| Obtained from | All the promethium originally present when the Earth formed has disappeared due to radioactive decay. Only very small trace amounts are found in uranium ores as a product of nuclear fission. |
Promethium is not known to exist in the earth's crust but a sample was extracted during processing of nuclear reactor fuel waste in 1963. Promethium salts glow in the dark because they are radioactive. Promethium is one of the rare earth elements.[1]
References
| Periodic Table of the Elements | ||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | |||||||
| *Lanthanides | 61
Pm 145 |
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| **Actinides | ||||||||||||||||||||||||
