History Flashcards
1
Q
Who reintroduced the idea that everything is made out of atoms?
A
John Dalton
2
Q
Who discovered electrons?
A
JJ Thomson
3
Q
Who created the plum pudding model?
A
JJ Thomson
4
Q
Who tested the Plum Pudding Model?
A
Geiger and Marsden
5
Q
What happened to the alpha particles?
A
most went straight through, some were deflected, some were reflected
6
Q
Who created the nuclear model?
A
Rutherford
7
Q
What type of foil were the alpha particles fired at?
A
gold
8
Q
What are the two types of particle in the centre of an atom?
A
proton, neutron
9
Q
Who discovered the neutron?
A
James Chadwick
10
Q
Who discovered that atoms have a nucleus?
A
Neils Bohr
