Electrons revolve around the nucleus in circular paths.
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Nearly all the mass of an atom resides in the nucleus.
The positively charged center in an atom is called the nucleus.
Thomson likened the atom to a Christmas pudding or a watermelon, where electrons were compared to currants or seeds embedded within a positively charged sphere.
It revolutionized the understanding of atomic structure, revealing the nucleus as a tiny, dense center of positive charge surrounded by mostly empty space occupied by electrons, leading to the development of the nuclear model of the atom.