Question

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Answer 1

Answer:

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Answer 2

Answer:

Atoms are the building blocks of all matter. When a substance contains only one type of atom, it is called an element. ... An element is a pure substance and is made of only one type of atom; it cannot be broken down into a simpler substance.Atoms are the building blocks of all matter. When a substance contains only one type of atom, it is called an element. ... An element is a pure substance and is made of only one type of atom; it cannot be broken down into a simpler substance.