PL HELP! the metal changes from hot liquid to cool solid.
describe what happens to arrangement, separation and motion of the atoms as the metal changes from hot liquid to cool solid
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In atoms, the electron carries a negative elementary or unit charge; the proton carries a positive charge. the two types of charge are equal and opposite. in an atom of matter, an electrical charge occurs whenever the number of protons in the nucleus differs from the number of electrons surrounding that nucleus.

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