Question

7. Explain Rutherford & Bohr's atomic Model.

8. Explain
a) Isotope
b) Isobar

9. Distinguish between Uniform & Non Uniform motion with example.

10. Derive all Formullas of Non Uniform Velocity.

Please answer​

Answer 1

option no. (b)

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Answer 2

Answer:

7. Rutherford model

In this model there is a positively charged centre in an atom called the nucleus.Nearly, all the mass of an atom resides in the nucleus.The electrons revolve around the nucleus in a circular paths.The size of the nucleus is very small as compared to the size of the atom.

Bohr's model

In this model, only certain special orbits know as the discrete orbit of electrons, are allowed inside the atom.While revolving the electrons do not radiate energy.These orbits are called energy levels or shells.

8.

a.Isotopes are atoms of the same element, which have different mass number.

b.Isobars are atoms having the same mass number but different atomic number.

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