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Rutherford's Atomic Model

In Rutherford...

Question

In Rutherford model of atom how positive charge occupies little space inside the atom?

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Solution

The fast moving âˆ-particles were used for Rutherford's experiment. âˆ-particles are positively charged particle so it feel repulsion from any of the positively charge particle and get deflected from its path.
During the experiment, Rutherford observed that very few particles suffered a deflection from their path. This means that positive charge occupies very little space inside an atom.

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Q. Rutherford concluded that most space inside an atom is .

Which of the following conclusions can be drawn from the Rutherford alpha scattering model?

I. The atom is mostly empty space.
II. Electrons orbit the nucleus of the atom.
III. The atom has a dense, positively charged nucleus.

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.)

Q. Consider the following observations and their respective conclusions:

\begin{matrix} Observation & Conclusion (i) M o s t o f t h e f a s t m o v i n g α - p a r t i c l e s p a s s e d s t r a i g h t t h r o u g h t h e g o l d f o i l . & M o s t o f t h e s p a c e i n s i d e t h e a t o m i s e m p t y . (i i) S o m e o f t h e α - p a r t i c l e s w e r e d e f l e c t e d b y s m a l l a n g l e s . & P o s i t i v e c h a r g e o f t h e a t o m o c c u p i e s v e r y l i t t l e s p a c e . (i i i) O n e o u t o f e v e r y 12000 p a r t i c l e s a p p e a r e d t o r e b o u n d . & M a s s o f a n a t o m i s s p r e a d i n a v e r y l a r g e v o l u m e . \end{matrix}

Which of the above observation is/are not correctly matched with its conclusion?

Q. Describe the bohr's model of atom and limitations of Rutherford model of atom.(in easy way)

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