What did Rutherford conclude regarding the atomic mass? 1) Mass of the atom is uniformly distributed. 2)Nucleus of an atom is much heavier than electron. 3)Nearly all the mass of an atom reside at the centre of an atom. 4)Nucleus of an atom is lighter than the electron.
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3) Nearly all the mass of an atom reside at the centre of an atom.
Explanation:
He concluded that all of the positive charge and the majority of the mass of the atom must be concentrated in a very small space in the atom's interior, which he called the nucleus.
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