If a nucleus contains 12 protons, how many electrons arein the neutral atom? Explain.
An atom's nucleus has 92 protons and its mass number is235. How many neutrons are in the nucleus? What is thename of the atom?
Complete Table 4.8.
Approximately how many times greater is the diameterof an atom than the diameter of its nucleus? Knowingthat most of an atom's mass is contained in the nucleus,what can you conclude about the density of the nucleus?
Is the charge of a nucleus positive, negative, or zero?The charge of an atom?
Gold Foil Experiment How did the actual results ofRutherford's gold foil experiment differ from the resultshe expected?
- Expected results: were to find deflected alpha particle rays at small angles.- Actual results: he found deflected alpha particle rays at large angles.
he was expected at the Alpha particle agrees with refract and a smile angle. But the experiment it was determined that they actually refract a much larger and Goldston then previously expected.
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