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The first ionization energy value of an ...

The first ionization energy value of an element area 191, 578,872 and 5692 kcals. The number of valence electrons in the element are

A

5

B

2

C

3

D

4

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The correct Answer is:
C
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NARAYNA-PERIODIC TABLE -All Questions
  1. Which has the highest second ionization potential?

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  2. Which has least ionization potential?

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  3. The first ionization energy value of an element area 191, 578,872 and ...

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  4. The peaks in ionisation potential curves are occupied by

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  5. The first ionisation energy of beryllium is more than that of boron be...

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  6. An alkaline earth element has the I(1), I(2) and I(3) values 9.2 eV/at...

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  7. The screening effect of d-electron is

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  8. Which is least for an element

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  9. Element with lowest and highest I.P values in each period respectively...

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  10. Which of the following relation is correct with respect first (I) and ...

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  11. Which of the following elements has the lowest ionization potential ?

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  12. Which one of the following order is correct for the first ionisation e...

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  13. The energy released when a neutral gasous atom, takes up an electron a...

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  14. The units of Electron Affinity are

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  15. The lower electron affinity of fluorine than that of chlorine is due t...

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  16. Which of the following will have almost positive EA(1)

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  17. The element having electron affinity is

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  18. The energy released when an electron is added to a neutral gaseous ato...

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  19. The element with high electron affinity is

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  20. The electron affinity of an atom is numerically equal to the

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