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What is the difference between an ionic bond and a covalent bond?
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What is the number of protons in an atom also called?
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There are two isotopes of element A. Information about the two isotopes is shown in Table 4. Table 4 Mass number of the isotope 6 7 Percentage abundance 92.5 7.5 Use the information in Table 4 to calculate the relative atomic mass of element A. Give your
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