Rutherford put forward the presence of a in the centre of an atom.

nucleus

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Solution

The correct option is A nucleus
Rutherford put forward the nuclear model of an atom. He concluded the presence of a positively charged nucleus present at the center of an atom. Most of the mass of an atom resides in the nucleus. The size of the nucleus is very small when compared to the size of an atom.

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Similar questions

Q. 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.

(a) State three features of the nuclear model of an atom put forward by Rutherford.

(b) An atom has atomic number 12, Write the name of the element and its valency.

Q. The presence of nucleus in an atom is determined by Rutherford

α - r a y

scattering experiment.

Which of the following are the limitations of Rutherford’s experiment?
(i) Rutherford couldn't explain how many electrons rotate in a particular orbit.
(ii) Rutherford was not able to explain the stability of an atom.
(iii) Rutherford couldn't explain why electrons undergo acceleration and radiate energy.
(iv) Rutherford couldn't explain the presence of nucleus.

Q. The concept of pH was put forward by:

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Standard IX Chemistry

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