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Atomic models
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Atomic models
Democritus
- Democritus' atomic model proposed that all matter is made up of tiny, indivisible, and indestructible particles called atoms, which move in empty space.
- (1)
- https://www.google.com/url?sa=i&url=https%3A%2F%2Ftimelineatomictheory.weebly.com%2Fdemocritus.html&psig=AOvVaw3szzQDrNUYFp6LgHmpDpka&ust=1759775012406000&source=images&cd=vfe&opi=89978449&ved=0CAMQjB1qFwoTCOiC7pbXjZADFQAAAAAdAAAAABAE
- (1)
- Democritus' atomic model proposed that all matter is made up of tiny, indivisible, and indestructible particles called atoms, which move in empty space.
Dalton
- Dalton's atomic model, or billiard ball model, proposed that matter is composed of atoms, which are spherical, massive, indivisible, and indestructible particles.
- https://www.google.com/url?sa=i&url=https%3A%2F%2Fkeystagewiki.com%2Findex.php%2FDalton_Model&psig=AOvVaw1yIufH3C_3zBiJTT6AxSVD&ust=1759775155774000&source=images&cd=vfe&opi=89978449&ved=0CAMQjB1qFwoTCKixtuLXjZADFQAAAAAdAAAAABAE
- Dalton's atomic model, or billiard ball model, proposed that matter is composed of atoms, which are spherical, massive, indivisible, and indestructible particles.
Thomson
- Thomson's atomic model, known as the ‘raisin pudding’ model, proposes that the atom is a solid, electrically positive sphere in which electrons (negative charges) are scattered uniformly, similar to raisins in a pudding.
- https://www.google.com/url?sa=i&url=https%3A%2F%2Fbyjus.com%2Fchemistry%2Fj-j-thomsons-atomic-model-and-its-limitations%2F&psig=AOvVaw1p1lXpvKB0BNhkxeAebKbc&ust=1759775515222000&source=images&cd=vfe&opi=89978449&ved=0CAMQjB1qFwoTCMjR9ObYjZADFQAAAAAdAAAAABAE
- Thomson's atomic model, known as the ‘raisin pudding’ model, proposes that the atom is a solid, electrically positive sphere in which electrons (negative charges) are scattered uniformly, similar to raisins in a pudding.
Rutherford
- Rutherford's atomic model describes an atom with a small, dense, positive nucleus at the centre, containing most of the mass, and an electron shell, a large, mostly empty region where electrons orbit.
- https://www.google.com/url?sa=i&url=https%3A%2F%2Fbyjus.com%2Fchemistry%2Fj-j-thomsons-atomic-model-and-its-limitations%2F&psig=AOvVaw1p1lXpvKB0BNhkxeAebKbc&ust=1759775515222000&source=images&cd=vfe&opi=89978449&ved=0CAMQjB1qFwoTCMjR9ObYjZADFQAAAAAdAAAAABAE
- Rutherford's atomic model describes an atom with a small, dense, positive nucleus at the centre, containing most of the mass, and an electron shell, a large, mostly empty region where electrons orbit.
Bohr
- Bohr's atomic model, proposed in 1913, describes an atom with a central nucleus and electrons orbiting in layers with defined and quantised energy levels, also called stationary orbits or electron shells.
- https://www.google.com/url?sa=i&url=https%3A%2F%2Fwww.researchgate.net%2Ffigure%2FBohr-atomic-model-of-carbon-atom_fig1_362365182&psig=AOvVaw0CnKJEpDmqcYF9Yvxfbkat&ust=1759775679639000&source=images&cd=vfe&opi=89978449&ved=0CAMQjB1qFwoTCLDhqt_ZjZADFQAAAAAdAAAAABAU
- Bohr's atomic model, proposed in 1913, describes an atom with a central nucleus and electrons orbiting in layers with defined and quantised energy levels, also called stationary orbits or electron shells.
Rita Pouzada Nº23 7ºC
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- Mind Map on Atomic models, created by Rita Pouzada on 04/10/2025.
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