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The third period of the long form of per...

The third period of the long form of periodic table contains the following elements:

On which side of the periodic table do you find the metals?

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MODERN PUBLICATION-PERIODIC CLASSIFICATION OF ELEMENTS-EXAMPLE
  1. An atom of an element has electronic configuraiton 2,8,7. To which gro...

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  2. Which of the following belongs to same period same group?

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  3. The third period of the long form of periodic table contains the follo...

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  4. The third period of the long form of periodic table contains the follo...

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  5. Three elements X,Y and Z belong to groups 2,15 and 17 respectivley. Pr...

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  6. Three elements X,Y and Z belong to groups 2,15 and 17 respectivley. Pr...

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  7. A part of the periodic table is given below. The elements sodium, carb...

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  8. A part of the periodic table is given below. The elements sodium, carb...

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  9. Did doberiner's triads also exist in the columns of newlands's octaves...

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  10. What were the limitations of deberiner's calssification?

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  11. What were the limitations of newland's law of octaves?

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  12. Besides gallium which other elements have since been discovered to fil...

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  13. What were thae criteria used by Mendeleev in creating his periodic tab...

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  14. Why do you think the noble gases are placed in a separate group?

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  15. How could modern periodic table remove various anomallies of mendeleev...

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  16. Name two elements you would expect to show chemical reactions similar ...

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  17. Name three elements that have only a single electron in their outermos...

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  18. Name two elements that have two electrons in their outermost shells

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  19. Name: three elements with filled outermost shells

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  20. Lithium, sodium, potassium are all metals that react with water to lib...

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