| 释义 |
铷rú金属元素,符号Rb(rubidium)。银白色,质软,化学性质极活泼,在光的作用下易放出电子,遇水发生爆炸。用于制光电池和真空管等。{rubidium (Rb); silver-white, soft element of an extremely active chemical property that releases electrons under the impact of light and explodes in water, used as a material for the making of photocells and vacuum tubes} |