atomic number 86
Học thuậtThân thiện
Definition
Noun: - A radioactive gaseous element formed by the disintegration of radium; the heaviest of the inert gases; occurs naturally (especially in areas over granite) and is considered a hazard to health. This is the scientific definition for the chemical element with the symbol Rn and atomic number 86, known as radon.
Usage
- The term 'atomic number 86' is used primarily in scientific, technical, and educational contexts to precisely identify the element radon by its fundamental property—the number of protons in its nucleus.
- It is a formal and unambiguous identifier, especially useful in chemistry, physics, and environmental science.
Examples
- Scientific Context:
- The periodic table lists radon with atomic number 86.
- Elements are uniquely defined by their atomic number; for radon, that is 86.
- The study focused on the health risks associated with atomic number 86 seeping into basements.
Advanced Usage
- In Classification: The phrase is used to place the element within the periodic table's systematic order.
- All atoms containing 86 protons in their nucleus are atoms of atomic number 86, regardless of the number of neutrons.
Variants and Related Words
- Radon (Rn): The common name for the element identified by atomic number 86.
- Noble Gas / Inert Gas: The family of elements to which atomic number 86 belongs.
- Radioactive Element: A key property of atomic number 86.
Synonyms
- Radon: The direct and most common synonym.
- Rn: The chemical symbol.
Notes on Meaning
- The term 'atomic number 86' has only one specific meaning: it is the numerical identifier for the element radon. It is not used idiomatically or in phrasal verbs. Its usage is strictly technical and denotative.
Noun
- a radioactive gaseous element formed by the disintegration of radium; the heaviest of the inert gasses; occurs naturally (especially in areas over granite) and is considered a hazard to health