| 释义 |
〔neptunium〕After the planet Neptune 1 [from the fact that it follows uranium in the periodic table] 源自 Neptune1 [来自于在周期表里,从它位于铀元素之后的事实] 〔periodicity〕The tendency of chemical elements with similar positions in the periodic table to have similar properties.周期律:化学元素在周期表中有相似位置时具有相似特性的趋势〔periodicity〕The position of an element in the periodic table.元素在周期表中的位置 |