1. What are the types of elements? ? 2. What are the smallest particles of matter called? 3.What is the difference between the molecules of elements and compounds?
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Answer: 1)Elements can be classified as metals, metalloids, and nonmetals, or as a main-group elements, transition metals, and inner transition metals.
2) An atom is the smallest particle of an element, having the same chemical properties as the bulk element. The first accurate theory explaining the nature of matter was Dalton's Atomic Theory: 1. All matter is composed of atoms, and atoms are indivisible and indestructible.
3) Molecules are two or more atoms chemically joined together. Compounds are two or more different elements joined together chemically. They can either be heteronuclear or homonuclear. They are made up of different elements.
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