Atomic mass number is the number of protons and neutrons. Subtract 80-35=45 is the number of protons. Because the atom is neutrally charged, the number of protons must equal the number of electrons, so there are 45 electrons.
C) is correct
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Answer:
B the rides are to the sun
C- K4O8 and K2O4
K4O8/4 =KO2
K2O4/2 =KO2
