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Dalton Atoms smooth and unbreakable, first atomic model, same elements are the same
Thomson Atoms have electrons which are negatively charged particles, positive charges balance out the negative (atoms have no charge)
Rutherford Atoms are mostly empty space, positive charge in center which is the nucleus, nucleus has one or more positively charged particles, protons are positive charge, electrons on outside
Bohr Electrons found in specific orbits around nucleus, each electron has fixed energy (can't change)
Schrödinger Electrons move in cloud like region around nucleus, electron movement related to energy level, different energy level guarantees different places
Chadwick Neutron in nucleus have no charge, nucleus has protons and neutrons, atom has cloud like region of moving electrons
Ball model Dalton
Watermelon/plum pudding model Thomson
Cherry model Rutherford
Tree rings Bohr
Cloud model Schrödinger
1808 Dalton
1897 Thomson
1909-1911 Rutherford
1913 Bohr
1926 Schrödinger
1932 Chadwick
Created by: morarrac



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