() - Neptunium — a radioactive metallic element with atomic

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Neptunium — a radioactive metallic element with atomic number 93, first synthesized in 1940 and named after the planet Neptune.

Neptunium — a radioactive metallic element with atomic

Usage highlights

neptunium elementneptunium isotopeneptunium compoundneptunium seriesneptuniumneptunium dioxide

Synonyms

  • alternative form for neptunium (used in Taiwan)

Usage & contexts

Examples

  • Neptunium (镎) is a synthetic element in the actinide series.
  • The isotope neptunium-237 (镎-237) has a long half-life.
  • Neptunium compounds (镎化合物) are studied in nuclear chemistry.
  • This sample contains traces of neptunium (镎).

Collocations

  • neptunium element(镎元素)
  • neptunium isotope(镎同位素)
  • neptunium compound(镎化合物)
  • neptunium series(镎系)
  • neptunium-237(镎-237)
  • neptunium dioxide(二氧化镎)

Cultural background

FAQ
  • Named after the planet Neptune, following the naming convention for transuranium elements (uranium → Uranus, neptunium → Neptune, plutonium → Pluto).
  • First synthesized in 1940 by Edwin McMillan and Philip Abelson at the University of California, Berkeley.
  • Primarily of scientific interest with no significant role in traditional Chinese culture or everyday language.

FAQ