define element its types. write example. of each
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Elements exist in their simplest form and cannot be broken down further. So, elements can exist in the form of ions, atoms, isotopes, molecules. An example of an element is Nitrogen atom(N), Nitrogen gas (N2), Nitrogen ion(N3-) and Nitrogen isotopes (Nitrogen-13, Nitrogen-14, and Nitrogen-15).
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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. If you change the number of protons an atom has, you change the type of element it is. ... These different versions of hydrogen are called isotopes....
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example=
1.iron
2.sodium
3.lead
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