Models of Atomic Structure Flashcards
1
Q
John Dalton (atomic structure)
A
Described atoms as solid spheres
Said different spheres made up different elements
2
Q
J.j Thomson
A
Plum pudding model
Positively charged sea with dots of electrons
3
Q
Rutherford and Geiger
A
Fired positively charged alpha particles at thin sheet of gold
Some were deflected and some went straight through
Developed nuclear model with nucleus and clouds of electrons
4
Q
Bohr
A
Electron exist in shells or orbitals of fixed energy
When electrons move between shells electromagnetic radiation is emitted or absorbed
