Flashcards
Atomic Models and Theories
Cards in this deck (10)
- 1Democritus Theory-atoms are particles in the void
-are always in motion
-are indivisible
-come in different sizes, shapes
-arranged in different ways
-make life predictable
-human soul is made of 'soul atoms' - 2Democritus Model
- 3Dalton Theory-all matter is composed of atoms
-atoms of same element are identical
-from different elements differ in size , mass, et
-cannot be divided, created, or destroyed
-atoms of different elements combine to form compounds
-in chemical reactions, atoms are combined, separated or rearranged - 4Dalton Model
- 5Thomson Theory-particles can push objects
-particles are deflected by a magnetic field
-particles were deflected away from a negatively charged object - 6Thomson Model
- 7Rutherford Theory- center of an atom is dense and small
- most of atom is empty space
- named center "nucleus"
- didn't know what electrons were, but idea that they orbited the nucleus was starting to catch on
-protons repel each other, but are held together by nuclear forces - 8Rutherford Model
- 9Bohr Theory-electrons can only occupy certain energy levels
-electron orbital lowest in energy (ground state) is closest to the nucleus, higher energy levels are successfully further away - 10Bohr Model
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- Chemistry 30 Flashcards on Atomic Models and Theories, created by Kylen Rioux on 04/03/2018.
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- Kylen Rioux
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