| 单词 | atomic number 37 |
| 释义 | atomic number 37 (extremely rare) n WORD FAMILY atomic number 37 USAGE EXAMPLESRubidium is the chemical element of atomic number 37, a rare soft silvery reactive metal of the alkali metal group. Scientific American(Oct 14, 2013) n a soft silvery metallic element of the alkali metal group; burns in air and reacts violently in water; occurs in carnallite and lepidolite and pollucite Syn|Hyper Rb, rubidium metal, metallic element any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc. |
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