Atomic structure + Physics Flashcards
1
Q
Radius of an atom?
A
1x10^-10
2
Q
Radius of the nucleus in comparison to the atom?
A
x 10 000
3
Q
Who created the plum pudding model?
A
J.J Thompson
4
Q
When was the plum pudding model created?
A
1897
5
Q
Who created the nuclear model?
A
Ernest Rutherford
6
Q
When did Rutherford create the nuclear model?
A
1909
7
Q
Who discovered shells?
A
Niels Bohr
8
Q
Who discovered the neutron?
A
James Chadwick
9
Q
When did James Chadwick discover the Neutron?
A
1932
10
Q
What happens when an atom absorbs electromagnetic energy?
A
Electron moves up an energy level (shell), away from the nucleus
11
Q
What happens when an atom emits electromagnetic energy?
A
The electron moves down an energy level, towards the nucleus
