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Fill in the blanks: The elements of gro...

Fill in the blanks: The elements of group 17 are called…........

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MBD-PERIODIC CLASSIFICATION OF ELKHOENTS-EXAMPLE
  1. Name the next element after phosphorous in modern period table?

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  2. Give the group number of nitrogen and phosphorus.

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  3. Why Mg and Al does not belong to same group?

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  4. In which group noble gases are present ?

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  5. Na and S are present in the third period of modern periodic table whic...

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  6. What is metallic character?

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  7. How metallic character vary on moving from left to right along a perio...

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  8. Who gave the law of octaves?

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  9. In Mendeleev's periodic table which element was discovered in the gap ...

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  10. According to Mandeleev's periodic law, the elements are arranged in or...

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  11. Which elemeent occupied gap left in Mandeleevs periodic table?

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  12. An element has the electronic configuration 2,8,2. It is present in gr...

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  13. Which element shows mettalic character?

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  14. Which shell is outer and largest shell for elements

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  15. Out of Na and Mg which Has larger size?

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  16. Fill in the blanks: Number of elements known in mendeleev's periodic ...

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  17. Fill in the blanks: Oxygen and sulphur belong to same…............

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  18. Fill in the blanks: The elements of group 17 are called…........

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  19. Fill in the blanks: The valency of the members of noble gas family is ...

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  20. Fill in the blanks: The halogens belong to group.............

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