Question

8. Which of the following conclusions could not be derived from Rutherford's
a-particle scattering experiment?
1) Most of the space in the atom is empty.
2) The radius of the atom is what about 10-1°m while that of nucleus is 10m
3) Electrons move in a circular path of fixed energy called orbits.
4) Electrons and the nucleus are held together by electrostatic forces of
attraction.
9. a-particles are projected towards the following metals, with the same kinetic
energy. Towards which metal, the distance of closest approach is minimum?
1) Cu (Z=29) 2) Ag (Z = 47)
3) Au (Z = 79) 4) Ca (Z = 20
10. Ernest Rutherford's model of the atom didn't specifically include the
1) Proton
2) electron
3) Nucleus
4)Neutrons
11. The ratio of the e/m of proton and a - particle is
1) 2:1
2) 1:2
3) 1:1
4) 1:3​

Answer 1

Answer:

8) 3

9) 3

10) 4

11)

Explanation:

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