francium
/ˈfransɪəm//ˈfrænsi.əm/
构词拆解
- -ium
- (chemistry) Used to form the names of metal elements, after the style of early-named elements, as well as the isotopes of hydrogen. · (chemistry) Used to form the temporary systematic element name of a metallic or nonmetallic element which is postulated to exist, or which has been newly synthesized and has not yet been assigned a permanent
词源链
- 英语English
francium
词源说明
释义
名词noun
- 1(chemistry) The chemical element (symbol Fr) with an atomic number of 87. It is an intensely radioactive alkali metal that is not found in nature.