Guide Question:
1. The discovery of electrons showed that atoms are not indivisible. Why? Explain briefly.
2. If an atom has equal number of protons ad electrons, What is the charge of the whole atom.
3. In Gold-foil experiment, why are most of the particles were able to pass through the foil and only few were deflected? Explain briefly.
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1. The discovery of electrons showed that atoms are not indivisible. Why? Explain briefly.
2. If an atom has equal number of protons ad electrons, What is the charge of the whole atom.
3. In Gold-foil experiment, why are most of the particles were able to pass through the foil and only few were deflected? Explain briefly.
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Answer:
1. For instance, we now know that atoms are not indivisible—as stated in part one—because they are made up of protons, neutrons, and electrons. ... In fact, experiments by Ernest Rutherford, Hans Geiger, and Ernest Marsden showed that atoms are mostly made up of empty space.
2.When an atom has an equal number of electrons and protons, it has an equal number of negative electric charges (the electrons) and positive electric charges (the protons). The total electric charge of the atom is therefore zero and the atom is said to be neutral
3. Most of the -particles were able to pass through the gold foil without encountering anything large enough to significantly deflect their path. A small fraction of the -particles came close to the nucleus of a gold atom as they passed through the foil. ... The vast majority of the volume of an atom is therefore empty space.
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is this okay?? sorry of i got ot wrong