1.Electrons are held in their shells by an electrical force. The protons and electrons of an atom are attracted to each other. The positive charge of the protons is equal to the negative charge of the
electrons
2.This atomic model has changed over time. Scientists used the model to make predictions. Sometimes the results of their experiments were a surprise and they did not fit with the existing model. Scientists changed the model so that it could explain the new evidence.
3. Indirect evidence is gathered and used by scientists in order to create working models that illustrate difficult concepts. The atomic model, the structure of the solar system, and the theory of black holes are examples of models created using indirect evidence
4.J.J. Thomson's experiments with cathode ray tubes showed that all atoms contain tiny negatively charged subatomic particles or electrons. Thomson proposed the plum pudding model of the atom, which had negatively-charged electrons embedded within a positively-charged "soup."
5.Ernest Rutherford is known for his pioneering studies of radioactivity and the atom. He discovered that there are two types of radiation, alpha and beta particles, coming from uranium. He found that the atom consists mostly of empty space, with its mass concentrated in a central positively charged nucleus.
Answers & Comments
Explanation:
1.Electrons are held in their shells by an electrical force. The protons and electrons of an atom are attracted to each other. The positive charge of the protons is equal to the negative charge of the
electrons
2.This atomic model has changed over time. Scientists used the model to make predictions. Sometimes the results of their experiments were a surprise and they did not fit with the existing model. Scientists changed the model so that it could explain the new evidence.
3. Indirect evidence is gathered and used by scientists in order to create working models that illustrate difficult concepts. The atomic model, the structure of the solar system, and the theory of black holes are examples of models created using indirect evidence
4.J.J. Thomson's experiments with cathode ray tubes showed that all atoms contain tiny negatively charged subatomic particles or electrons. Thomson proposed the plum pudding model of the atom, which had negatively-charged electrons embedded within a positively-charged "soup."
5.Ernest Rutherford is known for his pioneering studies of radioactivity and the atom. He discovered that there are two types of radiation, alpha and beta particles, coming from uranium. He found that the atom consists mostly of empty space, with its mass concentrated in a central positively charged nucleus.
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Answer:
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1.Cause no one structure would move if there no ELECTRICITY.
2.It changed because time may be old so we need new versions.
3.Cause its easy to study if you did well though.
4.The corrison sythe.
5.The big one, it was found by scientist.
Explanation:
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