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Indicate the atomic number of elements o...

Indicate the atomic number of elements of period 3 of modern periodic table: elements forming positive ions

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MBD-PERIODIC CLASSIFICATION OF ELKHOENTS-EXAMPLE
  1. Indicate the atomic number of non metals of period 3 of modern period...

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  2. Indicate the atomic number of elements of period 3 of modern periodic ...

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  3. Indicate the atomic number of elements of period 3 of modern periodic ...

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  4. Indicate the atomic number of elements of period 3 of modern periodic ...

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  5. Define atomic radius, give its units.

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  6. How does atomic radius vary down a group and along a period?

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  7. Write down the electronic configuration of elements with atomic number...

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  8. Locate the following group in the table:alkali metals

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  9. Locate the following group in the table: halogens

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  10. Locate the following group in the table: alkaline earth metals

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  11. Locate the following group in the table: noble gases.

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  12. What properties do the elements in the same vertical column of the per...

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  13. Wrtie the chemical electronic configuration of nitrogen(N=7) and phosp...

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  14. Name the members of the alkaline earth family

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  15. To which group and period do they belong: sodium and calcium

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  16. Which member is the least reactive in nature?

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  17. Why are the members of group 1 called alkali metals?

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  18. An atom has electronic configuration 2,8,7. What is the atomic number ...

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  19. An atom has electronic configuration 2,8,7. To which of the following...

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  20. What physical and chemical properties of elements were used by mendele...

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