12.1 Choose the correct alternative from the clues given at the end of the each statement:
(a) The size of the atom in Thomson’s 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. (Thomson’s model/ Rutherford’s model)
(c) A classical atom based on .......... is doomed to collapse. (Thomson’s model/ Rutherford’s model)
(d) An atom has a nearly continuous mass distribution in a .......... but has a highly non-uniform mass distribution in .......... (Thomson’s model/ Rutherford’s model)
(e) The positively charged part of the atom possesses most of the mass in .......... (Rutherford’s model/both the models)
12.1 Choose the correct alternative from the clues given at the end of the each statement:
(a) The size of the atom in Thomson’s 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. (Thomson’s model/ Rutherford’s model)
(c) A classical atom based on .......... is doomed to collapse. (Thomson’s model/ Rutherford’s model)
(d) An atom has a nearly continuous mass distribution in a .......... but has a highly non-uniform mass distribution in .......... (Thomson’s model/ Rutherford’s model)
(e) The positively charged part of the atom possesses most of the mass in .......... (Rutherford’s model/both the models)
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1 Answer
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12.1 The size of the atom in Thomson's model is no different from the atomic size in Rutherford's model.
In the ground state of Thomson's model, electrons are in stable equilibrium. While in Rutherford's model, electrons always experience a net force.
A classical atom based on Rutherford's model, is doomed to collapse.
An atom has a nearly continuous mass distribution in a Thomson's model, but has a highly non-uniform mass distribution in Rutherford's model.
The positively charged part of the atom possesses most of the mass in both the models.
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Kindly go through the solution
Change in surface energy = work done
|DE0| = –10.2
]
= 3 m/s
n = 4
Number of transitions =
Kinetic energy: Potential energy = 1 : –2
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