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Write down the electronic configuration of the following elements from the given atomic numbers. Answer the following question with explanation.`"_3Li,`_14Si, _2He, _11Na, _15P`. Which of these elements belong to period 3?

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BAL BHARTI-PERIODIC CLASSIFICATION OF ELEMENTS-Exercise
  1. An element has its electron configuration as 2,8,2. Answer the followi...

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  2. An element has its electron configuration as 2,8,2. Answer the followi...

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  3. Write down the electronic configuration of the following elements from...

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  4. Write down the electronic configuration of the following elements from...

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  5. Write down the electronic configuration of the following elements from...

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  6. Write down the electronic configuration of the following elements from...

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  7. Write down the electronic configuration of the following elements from...

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  8. Write down the electronic configuration of the following elements from...

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  9. Write down the electronic configuration of the following elements from...

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  10. Write down the electronic configuration of the following elements from...

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  11. The atom having the smallest size.

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  12. The atom having the smallest atomic mass .

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  13. Write the name and symbol of the element from the description. The m...

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  14. The noble gas with the smallest atomic radius

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  15. Write the name and symbol of the element from the description. The m...

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  16. Write a short note on: Mendeleev's periodic law

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  17. Write a short note on: Structure of the Modern periodic table

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  18. Write a short note on: Position of isotpes in the Mendeleev's and t...

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  19. Atomic radius goes on decreasing while going from left to right in a p...

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  20. Give scientific reasons : Metallic character goes on decreassing wh...

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