rutherfordium
Noun: 1. A synthetic radioactive chemical element: Rutherfordium is a man-made, highly unstable element in the periodic table. It is classified as a transuranium element (meaning its atomic number is higher than uranium's) and is produced in particle accelerators. Its most common and stable known isotope has a mass number of 267.
Rutherfordium is used exclusively in scientific contexts, specifically in nuclear physics and chemistry research. Due to its extremely short half-life and the minute quantities in which it is produced, it has no applications outside of basic scientific study.
- Scientific Context:
- The team successfully synthesized a few atoms of rutherfordium in the laboratory.
- Rutherfordium's chemical properties are predicted to be similar to those of hafnium.
- The discovery of element 104, later named rutherfordium, was claimed by research teams in both the United States and the Soviet Union.
- In Nomenclature: The naming of this element was historically disputed. The American team proposed "rutherfordium" (symbol Rf) after physicist Ernest Rutherford, while the Soviet team proposed "kurchatovium" (symbol Ku) after Igor Kurchatov. The name "rutherfordium" and symbol "Rf" were officially ratified by the International Union of Pure and Applied Chemistry (IUPAC) in 1997.
- Symbol: Rf (The official chemical symbol for rutherfordium).
- Transuranium element (n): Any synthetic chemical element with an atomic number greater than 92 (uranium). Rutherfordium is a transuranium element.
- Superheavy element (n): A classification for elements with very high atomic numbers, typically above 104. Rutherfordium is among the lightest of the superheavy elements.
- Element 104: A synonym based on its atomic number.
- Unnilquadium (Unq): A temporary systematic element name used before its official naming.
This word has only one primary meaning: it refers specifically to the synthetic chemical element with atomic number 104. All usage relates directly to this scientific definition.
-
a radioactive transuranic element which has been synthesized
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