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From the electronic configurations N (2,...

From the electronic configurations N (2,5), O (2,6) and F (2,7), answer the following questions:
What is the number of valence electrons of F?

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ICSE-PERIODIC PROPERTIES OF ELEMENTS -QUESTIONS FOR PRACTICE ON EXAMINATION PATTERN (SECTION II)
  1. State the following: How does metallic character change in a period ...

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  2. From the electronic configurations N (2,5), O (2,6) and F (2,7), answe...

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  3. From the electronic configurations N (2,5), O (2,6) and F (2,7), answe...

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  4. From the electronic configurations N (2,5), O (2,6) and F (2,7), answe...

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  5. From the electronic configurations N (2,5), O (2,6) and F (2,7), answe...

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  6. From the electronic configurations N (2,5), O (2,6) and F (2,7), answe...

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  7. Atomic symbols of the first 20 elements of the periodic table are jumb...

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  8. Atomic symbols of the first 20 elements of the periodic table are jumb...

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  9. Atomic symbols of the first 20 elements of the periodic table are jumb...

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  10. In a period if the atomic radius of the first element is 152 pm, what ...

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  11. In a period if the atomic radius of the first element is 152 pm, what ...

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  12. Which one of the figures I and II represents the correct measure of at...

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  13. Consider the section of the periodic table given below. Note ...

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  14. Consider the section of the periodic table given below. Note: In ...

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  15. Consider the section of the periodic table given below. Note: In ...

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  16. Consider the section of the periodic table given below. Note: In ...

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  17. Consider the section of the periodic table given below. Note: In ...

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  18. The elements of one short period of the periodic table are given below...

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  19. The elements of one short period of the Periodic Table are given below...

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  20. The elements of one short period of the periodic table are given below...

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