| AcK | francium [actinium K] |
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| Fr | fracture; francium; franklin [unit charge]; French; frequency or frequent |
| francium | <chemical> Francium. A radioactive alkali metal with the atomic symbol fr, atomic number 87, and atomic weight 223. The mass numbers of other known isotopes are 204-213, 217-222, and 224. Its valence is +1. Chemical name: Francium (12 Dec 1998) |
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Synonyms :
| francium |
a radioactive element of the alkali-metal group discovered as a disintegration product of actinium
출처: wordnet.princeton.edu/perl/webwn
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| francium | a radioactive element of the alkali-metal group discovered as a disintegration product of actinium |
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제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
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제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
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