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Standard VII
Chemistry
Question

The first model of an atom was given by _____________.
  1. N. Bohr
  2. E. Goldstein
  3. Rutherford
  4. J.J. Thomson

A
N. Bohr
B
Rutherford
C
J.J. Thomson
D
E. Goldstein
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Q1
Question 13
The first model of an atom was given by

(a) N. Bohr
(b) E. Goldstein
​​​​(c) Rutherford
(d) J.J. Thomson
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Q2
Choose the correct alternative from the clues given at the end of each statement:

a) The size of the atom in the Thomsons model is ........... the atomic size in Rutherford's model.
(much greater than/no different from/much less than.)

b) In the ground state of .......... electrons are in stable equilibrium, while in .......... electrons always experience a net force.
(Thomsons model/ Rutherfords model.)

c) A classical atom based on .......... is doomed to collapse.
(Thomsons model/ Rutherfords model.)

d) An atom has a nearly continuous mass distribution in a .......... but has a highly non-uniform mass distribution in ..........
(Thomsons model/ Rutherfords model.)

e) The positively charged part of the atom possesses most of the mass in ..........
(Rutherfords model / both the models.)
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Q3

Thomson proposed the model of an atom to be similar to that of a:


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Q4
Statement 1 (S1): J. J. Thomson compared his atomic model to a Christmas pudding.
Statement 2 (S2): J. J. Thomson proposed that an atom as a whole is electrically neutral.
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Q5
Who was the first scientist to propose a model for the structure of an atom?
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