the history of the atom- the nuclear model Flashcards
1
Q
what showed that the plum pudding model was wrong
A
experiments
2
Q
how did experiments show it was wrong
A
it showed that the positive charge couldnt be spread out through the atom
3
Q
what did the experiment find
A
atoms have a small positively charged nucleus
4
Q
where is the nucleus
A
in the centre of the atom
5
Q
where is most of the mass in the atom
A
in the nucleus
6
Q
what did scientists suggest for this theory
A
that the nucleus is surrounded by a cloud of negatively charged electrons
