evidence for the nucleus

Question 1

daltons model

Answer 1

the idea that the atom was just a solid ball

Question 2

the plum pudding model

Answer 2

electrons were inside the atom alongside positive matter as atoms were neutral
the positive matter was spread out

Question 3

rutherfords model

Answer 3

positive matter was in a concentrated area
electrons were scattered

Question 4

bohr’s model

Answer 4

the idea that electrons were not scattered, but in electron shells
there was no evidence to prove this

Question 5

alpha particle scattering experiment

Answer 5

1000 alpha particles were shot at a thin gold sheet
if positive matter was spread out, the alpha particles would pass through the sheet
1 in 1000 alpha particles bounced back
this shows that positive matter is in a concentrated area and that most of the atom is empty space