actinide
1
9.9
- noun
- /ˈæktɪˌnaɪd/
- Specialized
:
actínido
- This represents the fact we don't know much about the soluble species for actinides in solution.
- elements known as actinides
- known as actinides
Examples
-
The actinide series includes elements such as uranium and plutonium, which are known for their radioactivity.
-
The whole point is that you're destroying transuranic actinides, which are the long-lived wastes of LWRs.
Blog text (11) -
This table right here shows the how our plutonium, uranium and minor actinide masses change over time.
-
Yucca Mountain is not needed to store refined actinides.
Blog text (11) -
Further, the natural actinides, such as thorium and plutonium, are also formed via r-process reactions.
Academic text (2005) -
Spent reactor fuel simply needs to be held safely for a few years until the short-half-life actinides decay, making it a valuable energy source that can be easily reprocessed.
Blog text (5) -
To overcome the challenge, recent efforts have been focused on the use of radionuclide selective extraction chromatographic cartridges for sequential separation and determination of 90Sr and actinides in a urine sample.
Academic text (2018) -
Counting time for the long-lived actinides such as 239Pu can be significantly reduced by using an inductively coupled plasma mass spectrometer (ICP-MS) as a detection system.
Academic text (2018) -
Scientists study the properties of actinides to understand their chemical similarities and radioactivity.
-
Researchers discovered that the actinides in the sample emitted significant amounts of radiation.
Synonyms
A group of radioactive metals including uranium and plutonium used in nuclear energy
A group of radioactive elements like uranium and plutonium used in nuclear work
Compounds
- Specialized
A group of 15 radioactive elements in the periodic table from actinium to lawrencium, including uranium and plutonium
Surface Forms
Morphology
actinide = actinium (semi-transparent) = actin + ide
Formed from the element name 'actinium' with the chemical suffix '-ide' and a regular truncation (actinium → actin-); the formation is systematic in chemistry but requires specialized knowledge and a recognition of the truncation to be fully understood.
Etymology
The word actinide comes from actinium, which was named from a Greek word meaning 'ray' because these elements give off strong radioactive rays. The chemical ending -ide marks a family of similar elements, so actinide is the name for the group of 'ray'-producing, radioactive elements.