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The number to the right of an element's symbol (ex. c-12) identifies the of an isotope.
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When the ionic compound nabr dissolves in water, br– ions are pulled into solution by the attraction between what two particles? a. the na+ and br– ions b. the na+ ion and the negative end of a water molecule c. the br– ion and the positive end of a water molecule d. the br– ion and the negative end of a water molecule
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What is made up of usable amounts of metallic elements...
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