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磷是一種化學元素，它的化學符號是P，它的原子序數是15。

Floor 1 魔法绿骑士 12/24/11 12:11
磷是一種易起化學反應的、有毒的氮族非金屬元素。它的化學反應活性和毒性取決於形態不同而有所區別。 磷化氫燃燒的火叫鬼火。

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