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Q:
I need a picture of the plumb pudding model and a little information on it.
- Zac Martin (age 16)
A:
Zac -
The plum pudding model of the atom came before we understood that
atoms had nuclei or even neutrons. At that point, all they knew was
that atoms had a positively charged part and negatively charged parts.
In this model, the positive part was like the 'pudding' - basically a
round glob of positively charged stuff. The negative parts were the
'plums' - little points of negative charge scattered through the
'pudding.' Some people refer to the plum pudding model as the
'chocolate chip cookie model' for reasons that I think you can guess:
(from
http://cwx.prenhall.com/bookbind/pubbooks/blb/chapter2/medialib/blb0202.html)
-Tamara
(published on 10/22/2007)
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