Questions and Answers
What did E. Goldstein discover in 1886?
The presence of canal rays in a gas discharge
What is the charge of a proton represented as?
Plus one (+1)
What is the mass of an electron considered to be?
Negligible
Where were the protons believed to be located within the atom?
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What did Rutherford conclude from the α-particle scattering experiment?
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What did Rutherford calculate about the radius of the nucleus based on his experiment?
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What is a drawback of Rutherford’s model of the atom?
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What feature did Rutherford's nuclear model propose?
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What is the mass number defined as?
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How is the atomic number denoted?
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If the number of protons in an atom is 6, what is its atomic number?
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What determines the atomic number of an atom?
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