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The number of vacant orbitals of element...

The number of vacant orbitals of element with atomic number 14 is:

A

2

B

4

C

8

D

6

Text Solution

Verified by Experts

The correct Answer is:
D
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MBD PUBLICATION-STRUCTURE OF ATOM-QUESTION TYPE
  1. Size of the nucleus is:

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  2. The orbital angular momentum of an electron in 2s-orbital is:

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  3. The number of vacant orbitals of element with atomic number 14 is:

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  4. Which of the following has the maximum number of unpaired electrons ?

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

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  6. The lightest particle is:

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  7. Which consists of particle of matter ?

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

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

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

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

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

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

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

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

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

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

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

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  19. sqrt2.h/(2pi)

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

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