a mixture of different liquids
溶液, 混合物
溶液的浓度可以不同，取决于每种液体的使用量。
a liquid that is capable of dissolving another substance
溶剂, 溶媒
氯仿由于其非极性性质，可作为脂类、脂肪和蜡的有效溶剂。
a tabular arrangement of chemical elements organized based on their atomic number, electron configuration, and recurring chemical properties
周期表, 元素周期表
周期表中的元素按原子序数递增排列，反映了原子核中质子的数量。
each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei, leading to variation in atomic mass
同位素, 同位素形式
氘和氚是氢的同位素，因其中子数不同而有所区别。
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
卤素, 卤族元素
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。
any of the elements in Group 18 of the periodic table, including helium, neon, argon, krypton, xenon, and radon, characterized by their inert nature and stable electron configurations
惰性气体, 稀有气体
霓虹灯标志在电流通过氖气时发光，展示了惰性气体的独特性质。
a mixture of two liquids where tiny droplets of one are evenly dispersed in the other, like oil in water
乳状液, 两种液体的混合物
沙拉酱中的乳液将油和醋结合在一起，使它们在没有乳化剂的情况下暂时混合，最终分离。
the time required for half of a quantity of a substance to undergo a change or decay, typically in the context of radioactive decay or chemical reactions
半衰期, 半寿期
碳-14的半衰期约为5,730年，用于放射性碳定年法以估计考古文物的年龄。
the emission of ionizing radiation or particles caused by the spontaneous disintegration of atomic nuclei in radioactive substances
放射性
放射性的电离辐射效应会损害活体组织和细胞，导致潜在的健康风险。
a type of uranium that has most of its more radioactive isotopes removed, primarily used for armor-piercing ammunition and shielding
贫铀, depleted uranium
贫铀的放射性比天然铀低，主要由同位素铀238组成。
