All of the following are true EXCEPT: Neutrons have one atomic mass unit and a charge of zero (no charge) Molecular weight is the sum of the atomic mass units in all the atoms that make up a molecule O Electrons have one atomic mass unit and a negative charge (minus 1) None of the other four answers (All are true statements) If an atom has 7 protons and no neutrons and another atom has 7 protons and 7 neutrons, both atoms are the same element

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