ununtrium

Thân thiện

A scientist carefully handles a sample of ununtrium in a secure laboratory.

Definition

1. Noun:
   • A radioactive transuranic element: "Ununtrium" is the former systematic element name for the chemical element with atomic number 113. It is a synthetic, highly radioactive element.

Usage Examples

• Noun:
  • Scientists successfully synthesized ununtrium in the laboratory.
  • The discovery of ununtrium was officially recognized in 2015.

Advanced Usage

• Historical/Systematic Naming: The name "ununtrium" is derived from the IUPAC systematic element nomenclature, where "un-un-trium" literally means "one-one-three" (from Latin for one and Greek for three), indicating its atomic number 113. It was a temporary placeholder name.
  • Before its permanent name was assigned, the element was known in scientific literature as ununtrium.

Variants and Related Words

• Nihonium (Nh): The permanent name for element 113, officially adopted by IUPAC in 2016. "Ununtrium" is the historical name for this element.
  • The element ununtrium is now called nihonium.

Synonyms

• Element 113: A direct reference by its atomic number.
• Eka-thallium: A name used in older, Mendeleev-style nomenclature predicting its properties.

Related Phrases/Contexts

• Transuranic element: A category describing any synthetic element with an atomic number greater than 92 (uranium). Ununtrium is part of this group.
  • Ununtrium, like other transuranic elements, is not found in nature and must be created artificially.

Học thuật

Noun

1. a radioactive transuranic element

Từ đồng nghĩa

• Uut
• element 113
• atomic number 113