鎵者,化學元素也,符號Ga,原子序三十一,屬主族金屬。色銀白,不溶於水。
性軟,延展性佳,固態者色青灰,液態者色銀白。熔點約三十度,置其於手中,即可熔之;然其沸點甚高矣,蓋二千四百零三度。
鎵者,兩性金屬也,溶酸,生鎵離子(Ga3+);溶鹼,則生鎵酸鹽。
同位素者卅四,自鎵五六至鎵八六。性穩者有二,曰鎵六九,鎵七一。以鎵六九為盛,五者有三。
煉鋁、煉鋅之時,可從其副產得之。
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