Last Updated
：2025/11/21
potassium-39
Noun
uncountable
Japanese Meaning
カリウム元素の主要な安定同位体。19個のプロトンと20個の中性子からなり、自然界に存在するカリウムの大部分（約93%以上）を占める。
Quizzes for review
(physics) The major stable isotope of potassium, ³⁹₁₉K, having nineteen protons and twenty neutrons; it amounts to over 93% of the element in nature
音声機能が動作しない場合はこちらをご確認ください
See correct answer
potassium-39
The mass spectrometer clearly distinguished potassium-39 from other isotopes during the experiment.
See correct answer
The mass spectrometer clearly distinguished potassium-39 from other isotopes during the experiment.
音声機能が動作しない場合はこちらをご確認ください
English - English
Word Edit Setting
- Users who have edit permission for words - All Users
- Screen new word creation
- Screen word edits
- Screen word deletion
- Screen the creation of new headword that may be duplicates
- Screen changing entry name
- Users authorized to vote on judging - Editor
- Number of votes required for decision - 1
Sentence Edit Setting
- Users who have edit permission for sentences - All Users
- Screen sentence deletion
- Users authorized to vote on judging - Editor
- Number of votes required for decision - 1
Quiz Edit Setting
- Users who have edit permission for quizzes - All Users
- Users authorized to vote on judging - Editor
- Number of votes required for decision - 1
