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Who first time ruled out the existence o...

Who first time ruled out the existence of definite paths of electrons ?

A

de-Broglie

B

Heisenberg

C

Neils Bohr

D

Einstein

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AAKASH INSTITUTE-STRUCTURE OF ATOM -ASSIGNMENT ( SECTION -A) Objective Type Questions (One option is correct)
  1. The wavelength associated with an electron moving with velocity 10^(10...

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  2. The formula for Heisenberg's uncertainty principle is

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  3. Who first time ruled out the existence of definite paths of electrons ...

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  4. Probability density is given by

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  5. The possible values of magnetic quantum number for p-orbital are

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  6. The notation of orbital with n=5 and l=3 is

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  7. The possible valuesof m(l)in a givensubshell are given by the formula

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  8. The shape of rho- orbital is

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  9. In multi-electron atom 4s-orbital is lower in energy than

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  10. The main energy shell in which the electron is present is given by

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  11. Shape of an orbital is given by

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  12. Orientation of orbitals is given by

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  13. Which one of the following orbitals is spherical in shape ?

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  14. The number of valence electrons in Aluminium is

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  15. Forn=4 , which one of the following values of l is not possible ?

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  16. The number of electrons present in 3d of Cu^(o+) is

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  17. The maximum number of electrons that can be accomoddated in d(x^(2)-y^...

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  18. The number of unpaired electrons in magnesium atom is

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  19. The correct sequence of energy of orbitals of multielectron species i...

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  20. The maximum number of unpaired electrons can present in p(x) orbital i...

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