Nucleons are the sub-atomic particles that are present in the nucleus of an atom. The protons and the neutrons are present in the nucleus of an atom and are collectively called as the nucleons. Protons are positively charged particles, and neutrons have no charge. The nucleons make up most of the mass of an atom.

Concise Chemistry Middle School for Class 8>Chapter 4 - Atomic Structure>Exercise>Q 6

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Define Nucleons.

Important Questions on Atomic Structure

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Concise Chemistry Middle School for Class 8>Chapter 4 - Atomic Structure>Exercise>Q 6

Define valence shell.

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Concise Chemistry Middle School for Class 8>Chapter 4 - Atomic Structure>Exercise>Q 7

Mention briefly the salient features of Dalton's atomic theory (five points).

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Concise Chemistry Middle School for Class 8>Chapter 4 - Atomic Structure>Exercise>Q 8

What are the two main features of Rutherford's atomic model?

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Concise Chemistry Middle School for Class 8>Chapter 4 - Atomic Structure>Exercise>Q 8

State one drawback of Rutherford's atomic model.

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Concise Chemistry Middle School for Class 8>Chapter 4 - Atomic Structure>Exercise>Q 9

What are the observations of the experiment done by Rutherford in order to determine the structure of an atom?

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Concise Chemistry Middle School for Class 8>Chapter 4 - Atomic Structure>Exercise>Q 10

State the mass number, the atomic number, number of neutrons and electronic configuration of the following atoms. Also, draw atomic diagrams for each of them.

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