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Atom
,→Plum Pudding Model of the Atom
====Plum Pudding Model of the Atom====
: In 1897 [[J.J. Thompson]] discovered that there was a [[particle]] smaller than an [[atom]] which he named the [[electron]] after another [[scientist]] had [[hypothesis|hypothesised]] their existence. The [[electron]] was found to be around 2000 times less [[mass]]ive than a [[Hydrogen]] [[atom]]. It was later realised that these [[electron]]s were responsible for [[Electrical Current|electrical current]] in [[metal]]s.
: This led him, in 1904, to propose the [[Plum Pudding Model]] of the [[atom]] in which [[atom]]s were believed to be a solid ball of [[Positive Charge|positive]] [[Electrical Charge|charge]] with [[electron]]s stuck inside to give an overall [[Neutral Charge|neutral]] [[Electrical Charge|charge]] to the [[atom]].
====Nuclear Model of the Atom====