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science

Sydney Ranson Inglés 6 fichas

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1matter is formed of small pieces that could not be cut into smaller parts called "atomos" meaning uncuttable. ( fluffy atom)Democritus
2Atoms are tiny invisible particles Atoms of one element are all the same atoms of different elements are different compounds form by combining atoms ( shiny atom)Dalton
3Atoms are mostly made out of (+) charged material, like dough in a bun. The (-) charged electrons are found inside the (+) dough. ( holey dough atom)Thomson
4Atoms have (+) particles in the center, and are mostly empty space. (+) particles called protons, the center of atoms called the nucleus (watermelon atom)Rutherford
5improved on Rutherford's model- proposed that electrons move around the nucleus in specific layers, or shells. Every atom has a specific number of electron shells. (regular one we use today)Bohr
6Worked with Rutherford to discover particles with no charge- called neutrons. Neutrons are also found in the nucleus. (rainbow model)Chadwick