The nucleus of an atom is a very small,dense region that contains over 99.9% of the atomic mass.
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Q2: The plum pudding model proposed that negatively
Q3: John Dalton was the first person recorded
Q4: The mass of a proton is exactly
Q5: If two atoms each contain different numbers
Q6: The gold foil experiment proved that large
Q7: An atom containing 8 protons,9 neutrons,and 8
Q8: Ernest Rutherford proved the existence of electrons.
Q9: The atom is the fundamental building block
Q10: The charges on electrons and neutrons cancel
Q11: The smell of the ocean is caused
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