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- 1Atoms Concept: A little particle the basic building block of chemistry.1. Nucleus:
This is the core of the atom, containing protons
2. Electrons:
These negatively charged particles orbit the nucleus - 2John Dalton: In 1803, Dalton developed a more scientifically grounded atomic theory based on the law of conservation of mass and the law of definite proportions.J.J. Thomson:
Thomson's "plum pudding" model suggested that the atom is a sphere of positive charge with negatively charged electrons embedded within. - 3Ernest Rutherford: Rutherford's gold foil experiment led to the discovery of the atomic nucleus and the planetary model of the atom, where electrons orbit a central nucleus.Niels Bohr:
Bohr proposed a model that incorporated the quantization of energy levels, suggesting that electrons orbit the nucleus in specific paths and can only absorb or emit energy in discrete packets. - 4Werner Heisenberg and Erwin Schrödinger: Their work contributed to the development of quantum mechanics, which describes the behavior of electrons in terms of probability distributions and atomic orbitals.
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- Flashcards on Untitled, created by Oscar David Echeverría Pinto on 22/04/2025.
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- Oscar David Echeverría Pinto
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