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

(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.

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. Nuclear theory of the atom was put forward by:

Q. The concept of "Centres of Origin of Cultivated Plants" was put forward by

What did Rutherford conclude regarding the atomic mass?
(i) Mass of the atom is uniformly distributed.
(ii) Nucleus of an atom is much heavier than electron.
(iii) Nearly all the mass of an atom resides at the centre of an atom.
(iv) Nucleus of an atom is lighter than the electron.

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