Halogen
01
卤素, 卤族元素
a type of chemical element found in Group 17 of the periodic table, known for being highly reactive and commonly used in disinfectants and lights
例子
Fluorine, a highly reactive halogen, is often added to drinking water to promote dental health.
氟是一种高活性的卤素，常被添加到饮用水中以促进牙齿健康。
