Question

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what are elements

Answer 1

An element is a substance that is made entirely from one type of atom. For example, the element hydrogen is made from atoms containing a single proton and a single electron. ... All isotopes of a particular element have the same number of protons, but have a different number of neutrons.

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Answer 2

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an element is a pure substance which is made up of atoms of same kind. for example iron is an element which is made up of iron atoms.