Flashcards
Atoms
Flashcards do conjunto (7)
- 1What is an atom?Is the smallest particle made of a nucleus and an electrons shell.
- 2Electrons, protons and neutronsNeutrons: a subatomic particle of about the same mass as a proton but without an electric charge
Protons: is a subatomic particle with a positive electrical charge.
Electrons: The electron is a subatomic particle that is found in all atoms. - 3Jhon Dalton1893, compact and firm sphere.
- 4Joseph Thompson1897, atom as a proton sphere with a positive charge, electrons embedded on it
- 5Ernest Rutherford1911, electrons move in permanent orbits (shells)
- 6Niels Bohr1913, nucleus, positive charge, electrons orbit the nucleus.
- 7Werner Heisenberg1927, the mass is concentrated in the nucleus, electrons form a shell in levels and sublevels
Informações
- Descrição
- FlashCards sobre Atoms, criado por Cristina Blanco em 25-04-2025.
- Criado por
- Cristina Blanco
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