Developing The Atomic Model Flashcards
1
Q
What did Dalton discover
A
Atomic theory
2
Q
What did Thomson do?
A
He found the electron and made the plum pudding model
He suggested that atoms are spheres of positive charge with electrons dotted inside
3
Q
What did Rutherford do?
A
Discovered that most of the atom in an empty space has a dense central nucleus.
Made the planetary model
Suggested electrons orbit the nucleus like planets in a solar system.
4
Q
What did Bohr do?
A
Bohr showed that electrons occupy fixed levels energy levels or shells around the nucleus
