atomic number 97

Thân thiện

A scientist points to the symbol "Bk" and the atomic number 97 on a large educational chart.

Definition

Noun: 1. A radioactive transuranic element: A synthetic, metallic chemical element with the atomic number 97, belonging to the actinide series. It is produced artificially, typically by bombarding other elements like americium with alpha particles (helium nuclei).

Usage

• Scientific Identification: The term "atomic number 97" is used primarily in scientific and technical contexts to identify the specific element berkelium (Bk) by its fundamental property—the number of protons in its nucleus.
• Formal Naming: It serves as a systematic name for the element before or in lieu of using its common name, berkelium.

Examples

• The isotope with mass number 249 is the most stable form of atomic number 97.
• Atomic number 97 was first synthesized in 1949 by a team at the University of California, Berkeley.
• All isotopes of atomic number 97 are radioactive and have relatively short half-lives.

Advanced Usage

• In Nuclear Chemistry: The term is used in equations and discussions concerning transuranium element synthesis, nuclear reactions, and the periodic table's structure.
  • The research paper detailed the neutron capture cross-section for atomic number 97.

Variants and Related Words

• Berkelium (Bk): The conventional name for the element with atomic number 97.
• Transuranic element: Any chemical element with an atomic number greater than 92 (uranium). Atomic number 97 is one such element.
• Actinide: Any of the 15 metallic elements from atomic number 89 to 103. Atomic number 97 is a member of this series.

Synonyms

• Berkelium (Bk) (This is the direct synonym, being the element's name).

Notes on Meaning

• The term "atomic number 97" has a single, precise scientific meaning referring to the element berkelium. It is not used in idiomatic or figurative language. Its usage is confined to chemistry, physics, and related technical fields.

Học thuật

Noun

1. a radioactive transuranic element; discovered by bombarding americium with helium

Từ đồng nghĩa

• berkelium
• Bk