Question

12. According to the shell model of the nucleus which is incorrect ?
(A) Magic numbers exist.
(B) Nucleons interact with their nearest neighbours only.
(C) Nucleons in a nucleus interact with a general force field.
(D) Large electronic quadruple moment exists for certain nuclei.​

Answer 1

Answer:

nucleons in a nucleus interact with a general force field

Answer 2

Answer:

The answer is B.

Explanation:

• The nuclear shell model is a representation of the atomic nucleus used in nuclear physics, atomic physics, and nuclear chemistry.
• It makes use of the Pauli exclusion principle to characterise the structure of the nucleus in terms of energy levels.
• The atomic shell model, which describes how electrons are arranged in an atom, and the nuclear shell model have the property that a filled shell leads to better stability.
• There are some locations in the process of adding nucleons to a nucleus (neutrons or protons) where the binding energy of the incoming nucleon is noticeably lower than the outgoing one.
• The shell model was created as a result of the discovery that some magic numbers of nucleons are more closely bonded than the next higher number.

Nucleons do not interact only with their nearest neighbours.

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