Atomic Philosophers Flashcards
0
Q
Thompson
A
Discovered electron
Plum Pudding Model
1
Q
Democritus
A
460 BC -370 BC
Atoms can’t be created or destroyed.
Property of matter depends on size, shape, and movement.
2
Q
Rutherford
A
Nobel Prize in 1908
Positive alpha particles
Gold Foil Experiment
Discovered Protons
3
Q
Chadwick
A
Discovered neutrons
Worked with Rutherford
4
Q
Bohr
A
First atomic model
Worked with Rutherford
5
Q
Mendeleev
A
Formed a periodic table and used it to correct element properties
6
Q
Moseley
A
Atomic number
7
Q
Dalton’s Atomic Theory
A
- Elements are made of small particles called atoms
- Atoms of one element are identical
- Atoms cannot be divided, destroyed, or created
- Atoms combine in ratios to form compounds
- Atoms are combined, separated, and rearranged in chemical reactions
