
Concept explainers
Interpretation:
The nuclear model and the solar model of an atom need to be explained.
Concept introduction:
Rutherford has explained the structure of an atom with the similarity of the nucleus in the center of an atom as the sun in the solar system

Answer to Problem 9E
Rutherford explains that a negatively charged electrons cloud is present around a tiny positive mass called the nucleus. In Rutherford’s model, the mass of an atom is concentrated into the center of an atom known as nucleus and electrons surround the positive mass.
Explanation of Solution
Niels Bohr proposed the “SOLAR SYSTEM” model of the atom, also known as Rutherford-
Chapter U1 Solutions
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