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The lightest particle is:...

The lightest particle is:

A

Electron

B

Proton

C

Neutron

D

`beta`-particle

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The correct Answer is:
A
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MBD PUBLICATION-STRUCTURE OF ATOM-QUESTION TYPE
  1. Which of the following has the maximum number of unpaired electrons ?

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  2. For a 'd' electron, the orbital angular momentum is:

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  3. The lightest particle is:

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  4. Which consists of particle of matter ?

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  5. The energy of an electron in the first Bohr's orbit of H atom is -13.6...

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  6. For an electron if the uncertainty in velocity is Delta v, the uncerta...

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  7. The quantum numbers for the last electron in an atom are n = 3, l = 1 ...

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  8. The radius of Bohr's first orbit in H atom is 0.053 nm. The radius of ...

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  9. The ionization potential of hydrogen atom is 13.6 eV. The energy requi...

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  10. The number of nodal planes is greatest for the orbital:

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  11. For which species, Bohr's theory does not apply:

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  12. Number of unpaired electrons in the electronic configuration 1s^2, 2s^...

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  13. Which represents the correct set of four quantum number of a 4d-electr...

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  14. The value of bohr's radius for hydrogen atom is:

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  15. The threshold wavelength for photoelectric effect on sodium is 5000 ov...

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  16. sqrt2.h/(2pi)

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  17. The total energy of the electron in the hydrogen atom in the ground st...

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  18. If the series limit of wavelength of the Lyman series for the hydrogen...

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  19. The difference in angular momentum associated with the electron in two...

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  20. Ionisation potential of Hydrogen atom is 13.6 eV. Hydrogen atom in the...

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