Charge on an electron was shown by

A. J. J. Thomson

B. Kirchoff

C. Ohm

D. M.Planck

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  1. The angular momentum of the moving electron is equal to
  2. The correct set of quantum numbers for the impaired electron of fluorine atom is
  3. The ion that is isoelectronic with CO is
  4. Davisson and Germer gave an experimental evidence for
  5. The orbitals with maximum number of possible orientation is:
  6. A dipositive ion Z++ has 2e- in the K shell, 8 e~ s in the L shell and 8e- in the M shell. Atomic number…
  7. In the case of atomic spectrum of hydrogen which series of lines lie in the visible region?
  8. Wave number is defined as
  9. The relationship between energy of a radiation and its frequency was given by
  10. The number of unpaired electrons in fluorine atoms is/are
  11. The wavelength of an electron
  12. Charge on an electron was shown by
  13. The number of unpaired electrons in the ground state of chromium is
  14. Isotones have same
  15. The atomic structure of an atom of an element is Is 1s2, 2s22p6, 3s23p6. The element is
  16. No two electrons in an atom can have the same values of all four quantum numbers according to
  17. Which of the following has the highest mass?
  18. Isotopes have different
  19. For a given energy level the number of orbitals is equal to
  20. Bohr's concept of the orbit in an atom was contradicted by
  21. Which of the following atoms has a non-spherical outermost orbital.
  22. The wavelength of an electron moving with a velocity 5×105m sec-1 is (h=6.63 ×10-34 kg m2 sec-1) 
  23. The velocity of a photon is
  24. In an atom of hydrogen, which of the following orbitais has the lowest energy for an electron present…
  25. If value of h is taken as 10-34 kg m2 sec-1, the de-Broglie wavelength of a particle…
  26. β rays are a stream of
  27. Mass of positron is the same to that of
  28. Among the following ions, which are has the highest paramagnetism?
  29. Which elements is represented by the following electronic configuration?
  30. The exchange of particles considered responsible for keeping the nucleons together are