Compound - Contains atoms of two or more different elements bonded together in a specific ratio. it CAN be broken down into simpler substances by chemical means but NOT by physical means, Element - contain only one type of atom, Mixtures - contain two or more substances (elements or compounds) that are NOT bonded together. Can be separated physically,

Mixture, Element, Compound

列印
嵌入

排行榜

視覺風格

選項

切換範本

恢復自動保存: ?