Models of the atom Flashcards
1
Q
What did Ernest Rutherford direct at a thin gold leaf in 1905?
A
Alpha particles
2
Q
Most alpha particles going straight through the gold foil tells us that …
A
The atom is mostly space
3
Q
The Rutherford scattering experiment proved the existence of what?
A
nucleus
4
Q
Who discovered the neutron?
A
James Chadwick
5
Q
The plum pudding model suggests that most of the atom is…
A
Positive ‘dough’
6
Q
What was the surname of the scientist who suggested the plum pudding model?
A
JJ Thomson
7
Q
What did Niels Bohr add to the Rutherford Atomic model?
A
electron orbits
8
Q
How many times bigger is the atom compared to the nucleus?
A
at least 10,000 times
