<P> The plum pudding model is one of several scientific models of the atom . First proposed by J.J. Thomson in 1904 soon after the discovery of the electron , but before the discovery of the atomic nucleus , the model represented an attempt to consolidate the known properties of atoms at the time : 1 ) electrons are negatively - charged particles and 2 ) atoms are neutrally - charged . </P>
<P> The plum pudding model is one of several scientific models of the atom . First proposed by J.J. Thomson in 1904 soon after the discovery of the electron , but before the discovery of the atomic nucleus , the model represented an attempt to consolidate the known properties of atoms at the time : 1 ) electrons are negatively - charged particles and 2 ) atoms are neutrally - charged . </P>
who came up with the plum pudding model
who came up with the plum pudding model
J.J. Thomson
J.J. Thomson