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Rutherford's Model

Among the giv...

Question

Among the given statements, which of the following postulate is/are not put forward by Rutherford regarding his atomic model?
I) An atom is electrically neutral.
II) The positively charged centre in an atom is called nucleus.
III) The size of nucleus is very small as compared to an atom.

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Solution

Option (b) is correct.

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Q. Question 5
Which of the following statements about Rutherford's model of atom are correct?
(i) Considered the nucleus as positively charged.
(ii) Established that the a-particles are four times as heavy as a hydrogen atom.
(iii) Can be compared to solar system.
(iv) Was in agreement with Thomson's model.

(a) (i) and (iii)
(b) (ii) and (iii)
(c) (i) and (iv)
(d) only (i)

Q. Following conclusions were drawn from the given figure :
I. There is a positively charged centre in an atom called the nucleus.
II. An atom consists of a positively charged sphere and the electrons are embedded in it.
III. The electrons revolve around the nucleus in well-defined orbits.
IV. The size of the nucleus is very small as compared to the size of the atom
V. Only certain special orbits known as discrete of electrons are allowed inside the atom.
Choose the correct statements.

Q. Rutherford concluded that the size of the nucleus is very small compared to that of an atom.

According to Rutherford's atomic model, the size of the nucleus is very small as compared to the size of the atom.

Q. Statement 1 (S1): According to Rutherford, nearly all the mass of an atom resides in the nucleus.
Statement 2 (S2): The size of a nucleus is very large as compared to an atom.

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