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Go through the Modern periodic table (fi...

Go through the Modern periodic table (fig2.1) and write the names one below the other of the elements of group 1. How many valence electrons are there in each of these elements ?

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Names of the elements of group 1:
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TARGET PUBLICATION-PERIODIC CLASSIFICATION OF ELEMENTS -Apply your knowledge
  1. Can there be an element with atomic mas 53 or 54 in between the two el...

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  2. Position of the elements in the periodic table: What do you think? ...

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  3. Go through the Modern periodic table (fig2.1) and write the names one ...

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  4. Write the electronic configuration of the first four elements in this ...

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  5. Which similarity do you find in their configuration?

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  6. How many valence electrons are there in each of these elements?

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  7. On going through the Modern periodic table (fig2.1) it is seen that th...

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  8. On going through the Modern periodic table (fig. 2.1) it is seen that ...

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  9. On going through the Modern periodic table (fig. 2.1) it is seen that ...

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  10. The elements in the third period, namely, Na, Mg, AI, Si, P, S, CI and...

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  11. What are thevalues of 'n' for the shells K,L and M?

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  12. What is the maximum number of electrons that can be accommodated in a ...

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  13. Deduce the maximum electron capacity of the shells K, L and M?

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  14. What is the relationship between the electronic configuration of an el...

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  15. The atomic number of beryllium is 4 while that of oxygen is 8. Write d...

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  16. The table on Textbook page no. 25 is made on the basis of the modern p...

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  17. What is the periodic trend in the variation of valency while going fro...

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  18. What is the periodic trend in the variation of valency while going dow...

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  19. By referring to the modern periodic table, find out the periods to whi...

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  20. State the period to which the above elements belong.

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