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How did Rutherford disprove the plum pudding model?
Ernest Rutherford disproved the plum pudding model by conducting the gold foil experiment, where he observed that some alpha particles were deflected at large angles, indicating the presence of a small, dense nucleus within the atom, rather than a uniform positive charge distribution as proposed by the plum pudding model.
What was Rutherford conclusion about plum pudding?
Ernest Rutherford concluded that the plum pudding model, proposed by J.J. Thomson, was incorrect after conducting his gold foil experiment. He found that most alpha particles passed through the foil, but some were deflected at large angles, indicating that an atom is mostly empty space with a dense, positively charged nucleus at its center. This led to the development of the nuclear model of the atom, which replaced the plum pudding model.
How did Ernest Rutherford's atomic model change over time?
Ernest Rutherford's atomic model evolved from the plum pudding model to the nuclear model. In the plum pudding model, he proposed that atoms consist of a positively charged sphere with negatively charged electrons embedded in it. Upon conducting the gold foil experiment and observing that some alpha particles were deflected, he revised his model to include a dense, positively charged nucleus at the center of the atom, surrounded by orbiting electrons. This became known as the nuclear model of the atom.
What flaws exist in Thomson's plum pudding model of the atom?
The plum pudding model of the atom was not correct. The prediction that alpha particles would pass through a sample of matter and would be deflected only minimally was disproved by rutherford and co-workers who found that some alpha particles (1 in 8000) bounced almost straight back. This was explained by the presence of a nucleus. Other phenomena were also difficult to explain. For example atomic absorption spectra with the sharp, principal and diffuse lines.
What is a plum pudding?
In the U.K. plum pudding is also called Christmas pudding since it is served with Christmas dinner. Believe it or not, it contains NO PLUMS! Plums used to be the term used for raisins. The pudding has a lot of dried fruit in it held together by egg and suet and sometimes moistened by molasses and flavored with cinnamon, nutmeg, cloves, ginger and other spices. The pudding is aged for a month or longer -- that's because they drench it in alcohol. My grandma used to say it was too drunk to spoil. She would wrap it well, put it in the pantry and leave it there for an entire year, or until she got the hankering for some "pud".
What evidence better support the solid sphere model or the plum pudding model?
The Bohr model is accepted today - of course, with some refinements.
How did the results of JJ Thomson's experiments change how scientists thought about atoms?
He described the atom as a sea of positive charge sprinkled with electrons
Why did Rutherford propose a new model of the atom?
he found out an great outcome from his experiment, he descirbed this result as comparable to shooting a gun at a piece and having having the bullet bounce back. he knew the plum pudding model was correct so he proposed it. he found out an great outcome from his experiment, he descirbed this result as comparable to shooting a gun at a piece and having having the bullet bounce back. he knew the plum pudding model was correct so he proposed it. he found out an great outcome from his experiment, he descirbed this result as comparable to shooting a gun at a piece and having having the bullet bounce back. he knew the plum pudding model was correct so he proposed it. he found out an great outcome from his experiment, he descirbed this result as comparable to shooting a gun at a piece and having having the bullet bounce back. he knew the plum pudding model was correct so he proposed it. he found out an great outcome from his experiment, he descirbed this result as comparable to shooting a gun at a piece and having having the bullet bounce back. he knew the plum pudding model was correct so he proposed it. he found out an great outcome from his experiment, he descirbed this result as comparable to shooting a gun at a piece and having having the bullet bounce back. he knew the plum pudding model was correct so he proposed it. he found out an great outcome from his experiment, he descirbed this result as comparable to shooting a gun at a piece and having having the bullet bounce back. he knew the plum pudding model was correct so he proposed it. he found out an great outcome from his experiment, he descirbed this result as comparable to shooting a gun at a piece and having having the bullet bounce back. he knew the plum pudding model was correct so he proposed it. he found out an great outcome from his experiment, he descirbed this result as comparable to shooting a gun at a piece and having having the bullet bounce back. he knew the plum pudding model was correct so he proposed it. he found out an great outcome from his experiment, he descirbed this result as comparable to shooting a gun at a piece and having having the bullet bounce back. he knew the plum pudding model was correct so he proposed it. he found out an great outcome from his experiment, he descirbed this result as comparable to shooting a gun at a piece and having having the bullet bounce back. he knew the plum pudding model was correct so he proposed it. he found out an great outcome from his experiment, he descirbed this result as comparable to shooting a gun at a piece and having having the bullet bounce back. he knew the plum pudding model was correct so he proposed it. he found out an great outcome from his experiment, he descirbed this result as comparable to shooting a gun at a piece and having having the bullet bounce back. he knew the plum pudding model was correct so he proposed it. he found out an great outcome from his experiment, he descirbed this result as comparable to shooting a gun at a piece and having having the bullet bounce back. he knew the plum pudding model was correct so he proposed it. he found out an great outcome from his experiment, he descirbed this result as comparable to shooting a gun at a piece and having having the bullet bounce back. he knew the plum pudding model was correct so he proposed it. he found out an great outcome from his experiment, he descirbed this result as comparable to shooting a gun at a piece and having having the bullet bounce back. he knew the plum pudding model was correct so he proposed it. he found out an great outcome from his experiment, he descirbed this result as comparable to shooting a gun at a piece and having having the bullet bounce back. he knew the plum pudding model was correct so he proposed it.
How did the gold foil experiment disprove the plum pudding model?
Rutherford an =d two of his assisstants sat up an alpha emitter which is a helium nucleus in a vaccum, when the alpha particles hit the foil sheet some of them went straight, some were reflected and some were deflected (that was not expected to happen). So Rutherford concluded that an atom is mainly an empty space that is why most of the particles went straight through. Moreover, he said that there is a positive molecule in the middle that is why some particles were reflected, also some were reflected because the positive molecule in the middle is very heavy and fixed strongly in its place. These conclusions probably will contradict with the theory of the plum pudding model because if stated that the atom is mainly like a positive dough and negative charges are spread out through it.
What was JJ Thomson's theory on atoms?
here are some jot notes about thomasons theory: 1894+ +ve sphere with embedded electrons net charge of 0 no protons no neutrons his theory led to the "Plum-Pudding "model
How did Rutherford's alpha scattering experiment show that Thomson's plum pudding model of the atom incorrect?
Rutherfords experiment proved the existence of a nucleus as some alpha particles "bounced back" from the gold foil sample . Thomson model did not involve a nucleus and predicted just a slight deflection or none at all.
What is plum pudding?
In the U.K. plum pudding is also called Christmas pudding since it is served with Christmas dinner. Believe it or not, it contains NO PLUMS! Plums used to be the term used for raisins. The pudding has a lot of dried fruit in it held together by egg and suet and sometimes moistened by molasses and flavored with cinnamon, nutmeg, cloves, ginger and other spices. The pudding is aged for a month or longer -- that's because they drench it in alcohol. My grandma used to say it was too drunk to spoil. She would wrap it well, put it in the pantry and leave it there for an entire year, or until she got the hankering for some "pud".
