Last Updated
：2025/11/21
nitrogen-13
Noun
uncountable
Japanese Meaning
放射性窒素同位体。7個の陽子と6個の中性子を持ち、半減期は10分未満で、正電子放出断層撮影（PET）に利用される。
Quizzes for review
(physics) A radioactive isotope of nitrogen, ¹³₇N, having seven protons and six neutrons, and a half-life of less than ten minutes; it is used in positron emission tomography
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
nitrogen-13
Researchers produced nitrogen-13 to study its decay properties and short half-life in the laboratory.
See correct answer
Researchers produced nitrogen-13 to study its decay properties and short half-life in the laboratory.
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
