Pm：丙炔属

“钷”是化学元素Promethium的简称，常缩写为Pm，广泛用于化学与材料科学领域，以简化书写和学术交流。其中文名称为“钷”，属于镧系元素，具有放射性，在核能研究和发光材料中有重要应用价值。

Just as technetium and promethium are islands of instability in parts of the periodic table which are not normally radioactive, so many physicists believe that in the unstable part at the bottom there lies an island of stability.
正如在周期表上本不该有放射性的部分存在着锝和钷这样的不稳定元素岛一样，许多物理学家相信，在周期表不稳定的底部区域会有一座稳定元素岛。
Hanford does it another way, and generate too much promethium.
汉福的做法不对，产生太多钇。
Analysis of contents of promethium - 147 in food
食品中钷-147的分析测定
Studies were carried out with radionuclide tracer on absorption, distribution and absorption coefficient of rare earth Promethium(Pm) ( 147 Pm ) in three species of aquatic vegetables ( arrowhead, water chestnut and water dropwort ).
应用放射性核素示踪技术，研究了3种水生蔬菜（慈姑、荸荠和水芹菜）对稀土元素钷（147Pm）的吸收与富集。
The heat stabilities and transparencies of stearates of rare earth metals except scandium and promethium used as heat stabilizers as PVC were studied.
研究了钪、钷外其他稀土金属硬脂酸皂对PVC热稳定作用。

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