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otázka		Odpoveď
What did Democritus suggest? začať sa učiť		Everything is made of tiny particles called atoms
What was Daltons model? začať sa učiť		Atoms were tiny solid spheres and different elements had different atoms
What did J.J. Thomson discover? začať sa učiť		The electron and plum pudding model
What was the plum pudding model? začať sa učiť		A ball of positive charge with negative electrons embedded inside
What experiment did Rutherford carry out? začať sa učiť		The gold foil alpha scattering experiment
What did Rutherford discover? začať sa učiť		Atoms are mostly empty space within a small positive nucleus
What did Chadwick discover? začať sa učiť		The neutron
What was the order of the history of the atom? začať sa učiť		Democritus-idea of atoms, John Dalton-solid sphere model, J.J. Thomson-electron discovered + plum pudding model, Ernest Rutherford-nucleus, Niels Bohr-electrons in the shell, James Chadwick-neutron

Chemistry - History of the Atom