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Inorganic chemicals
A broad class of substances encompassing all those that do not include carbon and its derivatives as their principal elements, yet not excluding carbides, carbonates, cyanides, cyanates, and carbon disulfide.
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Inorganic chemicals > 
阿爾法粒子
Energy; Nuclear energy
帶正電荷的離子從某些放射性元素的原子核自發地彈出。它是一個有品質數的 4 + 2 的靜電荷的氦核相同的 。它具有低的穿透力和距離很短 (空氣中幾釐米) 的 。最高能 α 粒子將通常不能穿透的細胞覆蓋皮膚,死了的圖層,可以輕鬆地停下來的一張紙。Alpha 發光的同位素是身體內部時,Α 粒子都是危險的。 ...