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What is Chemistry Notes: Elements and Reactions about?
Elements are the building blocks of all substances and are made of one type of atom. Compounds contain two or more bonded atom types. Metals are found on the left and center of the periodic table, with nonmetals on the right. Alkali metals are soft, reactive metals in Group 1 that must be stored under oil due to their reactivity with air and water. As alkali metals go down the group, their melting points decrease, densities increase, and reactivity grows. Reactions with water produce hydroxides and hydrogen
- Author
- hello
- Language
- EN