Lr
Definition
- Noun:
- A radioactive transuranic element: "lr" is the chemical symbol for the synthetic, radioactive element lawrencium. It is a transuranic element, meaning its atomic number is higher than that of uranium (92).
Usage
- The word "lr" is used almost exclusively in scientific contexts, particularly in chemistry and physics, to denote the element lawrencium. It is typically written in lowercase when referring to the symbol.
Examples
- Noun:
- The isotope lr-260 has a half-life of about 3 minutes.
- Scientists produced a new atom of lr in the particle accelerator.
Advanced Usage
- In periodic table notation: The symbol "Lr" (often capitalized in the context of the periodic table) represents element 103.
- Lr is located in the actinide series of the periodic table.
Variants and Related Words
- Lawrencium (n): The full name of the element represented by the symbol "lr".
- Lawrencium is named after the physicist Ernest O. Lawrence.
Synonyms
- Lawrencium: This is the full name, not a direct synonym but the term the symbol represents.
- Element 103: A descriptive synonym referring to its atomic number.
Notes
- "lr" is a chemical symbol, not a standard English word. It does not have phrasal verbs, idioms, or multiple common meanings. Its usage is technical and domain-specific.
Noun
-
a radioactive transuranic element synthesized from californium
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