History of the model of the atom Flashcards
1
Q
What was the atom thought to be like in 1897?
A
Sphere with a positive charge containing negatively charged particles called electrons
2
Q
What was the name of the model in 1897?
A
Plum pudding
3
Q
What was the change in 1909?
A
Nucleus had positive charge with negative charges orbiting around the nucleus
4
Q
What did they find out in 1913?
A
Electrons were restricted in a circular orbit around the nucleus
5
Q
What do we think of the atom now in present times?
A
Protons neutrons in the nuclease and electrons in shells