Rutherford proposed that atomic nucleus is positively charged.
i. On the basis of Rutherford model atom, he assumed that positively charged particles of an atom are held together in the centre of atom.
ii. It is called nucleus. Nucleus is surrounded by electrons.
iii. The volume is nucleus is small when compared to the volume of an atom.
iv. The nucleus is positively charged which is different in magnitude for different elements.
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