Scientists Flashcards
(16 cards)
0
Q
Dalton
A
Atomic theory
1
Q
Democritus
A
First to propose the idea of atom
2
Q
Thomson
A
Discovered electron -Plum pudding model
3
Q
Medeleev
A
Made the first periodic table
4
Q
Millikan
A
Oil-Drop Experiment & charge of electron
5
Q
Rutherford
A
Gold foil experiment (atom has dense nucleus)
6
Q
Planck
A
Idea of quantum of energy
7
Q
Einstein
A
Photoelectric effect
8
Q
Bohr
A
Bohr’s Atom (hydrogen atom)
9
Q
DeBroglie
A
Said all matter has wavelength properties
10
Q
Heisenberg
A
Uncertainty principle -can’t know location of electron
11
Q
Pauli
A
Exclusion Principle -orbitals can have a max of 2 electrons, each with an opposite spin
12
Q
Schrodinger
A
Quantum Numbers
13
Q
Mosley
A
Organized periodic table by periodic number
14
Q
Chadwick
A
Discovered neutron
15
Q
Aston
A
Discovered Isotopes
