which of the following is/are true for an element
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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.Every atom of an element has mass and volume. Mass is the amount of substance it contains this is usually a function of their subatomic particles.
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