1) a chart of the elements arranged in order of increasing atomic number a) mixture b) elements c) periodic table 2) a pure substance that is made up of only one kind of atom a) elements b) compounds c) periodic table 3) A russian scientist who formed a table of elemnts a) Dimitri Mendeleev b) Aristotle c) Dalton 4)  Mendeleev arranged the elements according to their increasing a) atomic number b) atomic mass c) size 5)  Which of the following was Mendeleev's prediction? a) Scientists would discover some elements that would occupy the spaces b) scientists would replace all elements c) scientists would remove the spaces

Periodic Table

由
打印
嵌入

排行榜

视觉风格

选项

切换模板

恢复自动保存：？