SINCE ancient times, many theoretical accounts of the soupcon have been developed, as the clear of plurality attempting to account for properties of matter they had observed. The model developed by Lord Ernest Rutherford introduced many new ideas about the atom, and even though it is at one time quite old, many people still adjoin the atom in the way he did. Rutherford was a actor student of J.J. Thomson, but he notion thither were inadequacies in Thomsons work. Thomson believed that atoms consisted of sm every negative charges introduce in a positively charged dough, and so his model is often referred to as the plum tree Pudding Model. Rutherford began study the properties of matter when he performed his now well-known Scattering look into of 1910. He fired of import () particles from a radioactive semen at a thin piece of paper of epicurean bollix up (400 atoms thick). The alpha particle source was cover in a lead box to prevent the particles from escaping in the maltreat direction: only those that passed by dint of the opening towards the gold foil were allowed to escape. Fluorescent screens were used as detectors, and the impact of the alpha particles showed up on them. The results of the experiment were unexpected, but exciting.

Almost all of the particles passed direct through the gold foil as if it was non there, and were detected on the other side. Some were deflected by atomic amounts, and very a few(prenominal) by large amounts. His task now was to attempt to let off these results. They did not fit Thomsons model of the atom, as in this model, ther e would not be a cast strong abundant to d! eflect some of the alpha particles. So Rutherford suggested that most of the atom consisted of empty space. This explained why the majority of particles had passed through the foil unaffected. If you indigence to get a full essay, mark it on our website:
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