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which block elements are called La...

which block elements are called Lanthanoids / actinoids ?

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VGS PUBLICATION-BRILLIANT-CLASSIFICATION OF ELEMENTS -THE PERIODIC TABLE -CREATIVE QUESTIONS FOR NEW MODEL EXAMINATION (SECTION -I)
  1. Which statement is wrong ?

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  2. How many elements are there in first period in the periodic tab...

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  3. which block elements are called Lanthanoids / actinoids ?

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  4. match it {:("a)",""(58)Ce-""(71)Lu,"i) Actinoids "),("b)",""(90) ...

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  5. Which block elements are called as transition metals ?

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  6. Which block elements are called the inner transition elements ?

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  7. Give two example to semi conductors?

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  8. Which block contains metals only ?

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  9. TO which group Lanthanoids and actinides belongs ?

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  10. Who did experiments to calculate the number of positive charges ...

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  11. A: Elements along a period possess different chemical properties...

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  12. Which property of an element is called as combining power of it...

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  13. In NaH , what is the valency of 'Na' ?

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  14. In CaO, what is the valency of 'Ca' ?

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  15. What is the valency of an element if that element is in the g...

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  16. What are the valencies of 1^(st) and least elements of every pe...

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  17. How does the valency vary on going down a group ?

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  18. Which property of an element is defined as the distance from t...

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  19. By which units atomic radius is measured ?

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  20. 1 pm is how many metres ?

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