The Structure of an Atom

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The Structure of an Atom: Overview

This topic covers concepts, such as Alpha Particles, The Unknown Structure of Atom, Structure of an Atom, Thomson's Model of an Atom, Conclusions from Thomson's Model of an Atom, and Failure of Thomson's Model of an Atom.

Important Questions on The Structure of an Atom

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What is the symbol of neutron?

(A) n0                     (B) p1                (C) e

Enter your correct answer as A, B or C.

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The symbol of neutron is _____.

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The symbol of the neutron is 'n'.

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What is the symbol of neutron?

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What was the conclusion given by Rutherford , after performing α-particle scattering experiment ?

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The structure of atom was unknown for long time and early Indian and Greek philosophers who were of the view that atoms are the fundamental building blocks of matter. According to them, the continued subdivisions of matter would ultimately yield atoms which would not be further divisible speculations and there was no way to test them _____ (experimentally / mentally)
 

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According to JJ thomson,"The negative and positive charges are equal in magnitude. So, the atom as a whole is electrically _____ .

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An atom consists of a positively charged sphere and the _____ are embedded in it.

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What is JJ Thomson model of atom?

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Draw a sketch of Bohr's model of an atom with three shells.

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Define energy shells. How they represented? Arrange them in order of increasing energy.

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State the postulates of Bohr's atomic model.

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State the limitation of Thomson’s Atomic Model.

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Define an orbit.

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How can you say that a large empty space is there around a nucleus of atom? 

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Why did Rutherford select the gold-foil in his alpha-particle scattering experiment? 

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Name the scientist and his experiment to prove that nucleus is present in an atom.

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The main feature of Rutherford's atomic model was centrally located nucleus.

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Which of the following statement is always correct?

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If an atom contains one electron and one proton, will it carry any charge or not?