history of the atom

Question 1

who discovered a neutron

Answer 1

chadwick

Question 2

who discovered electrons were in shells

Answer 2

bohr

Question 3

what was the Thompson’s Plum Pudding (2)

Answer 3

1) no empty space

2) negative charge spread all around

Question 4

what was Rutherford’s discovery

Answer 4

1) atom has empty space as alpha particles went straight through
2) atom has nucleus as alpha particles were rebounded back
3) nucleus was positive and positive particles were deflected by nucleus