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The number of electrons present in the v...

The number of electrons present in the valence shell of a halogen is :

A

1

B

3

C

5

D

7

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ICSE-PERIODIC PROPERTIES OF ELEMENTS -QUESTION
  1. The number of electrons present in the valence shell of a halogen is ...

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  2. Which of the following properties do not match with elements of the ha...

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  3. Give the number of group and the period, of the element having three ...

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  4. In group 1 the atomic radius of sodium is greater than the atomic radi...

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  5. The size of potassium atom is greater than the size of sodium atom. Gi...

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  6. In halogens (group 17) the atomic radius of chlorine is greater than t...

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  7. The atomic size of beryllium is smaller than the atomic size of lithiu...

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  8. The atomic size of lithium is larger than the atomic size of beryllium...

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  9. Look at the atomic radii of some elements of the second period and ans...

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  10. Look at the atomic radii of some elements of the second period and ans...

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  11. Look at the atomic radii of some elements of the second period and ans...

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  12. Look at the atomic radii of some elements of the second period and ans...

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  13. The ionisation energy of potassium is lower than that of sodium. Give ...

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  14. Give reason - The oxidising power of elements increases from left to r...

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  15. Fill in the blank from the choices given in brackets : The energy ...

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  16. Which one of the following elements of period 2 has high electron affi...

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  17. Define the following terms: Ionisation potential

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  18. Define the following terms: Electron affinity .

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  19. Answer the following questions: The metals of Group 2 from top to ...

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  20. The metals of Group 2 in the periodic table from top to bottom are - B...

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