| 单词 | francium |
| 例句 | Lithium, sodium and potassium, which nicely align in the table’s first vertical column — Group One, the alkali metals, with rubidium, cesium, and francium — all have one electron in their outer electron shell. Is It Time to Upend the Periodic Table? 2019-08-27T04:00:00Z The team’s proposed name follows suit with other atomic elements like polonium named after Poland, francium after France, and americium after the United States. Japanese Scientists Name Atomic Element 113 'Nihonium' 2016-06-09T04:00:00Z It is evident in entries like francium, germanium, scandium, polonium, europium, californium, berkelium and americium. In a First, Element Will Be Named by Researchers in Japan 2016-01-04T05:00:00Z The last of the original 92 elements to be discovered was element 87, francium. A Brief History of Element Discovery, Synthesis, and Analysis |
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