calcium-40

noun

The major stable isotope of calcium, 4020Ca, with 20 protons and 20 neutrons; it amounts to almost 97% of natural calcium.

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Meanings

nouncalcium-40 (uncountable)
  1. uncountablenatural sciencesThe major stable isotope of calcium, 4020Ca, with 20 protons and 20 neutrons; it amounts to almost 97% of natural calcium.
Cite this entry
APA

calcium-40. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/calcium-40

MLA

“calcium-40.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/calcium-40. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “calcium-40,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/calcium-40.

Source: calcium-40 on Wiktionary, CC BY-SA 4.0.