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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.

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On going through the Modern periodic table (fig2.1) it is seen that the elements Li,Be,B,C,N,O,F and Ne belong to the period -2. Write down the electronic configuration.

On going through the Modern periodic table (fig. 2.1) it is seen that the elements Li,Be,B,C,N,O,F and Ne belong to the period - 2. Write down the electronic configuration. Is the number of shells the same in these?

On going through the Modern periodic table (fig. 2.1) it is seen that the elements Li,Be,B,C,N,O,F and Ne belong to the period - 2. Write down the electronic configuration. Is the number of valence electrons same for all these elements ?

By referring to the modern periodic table, find out the group to which the above elements belong.

A part of periodic table is shown in the following figure Write the symbol of the element Q'.

Consider the elements of period 2 in the modern periodic table. Answer the following questions with explanation. Name the element in which both the shells are completely filled with electrons.

Answer the following questions: Considering the elements of period 3 in the modern periodic table, answer the following questions : Name the element which has one electron in the outermost shell.

Answer the following questions: Write the answers of the questions with reference to the structural of the periodic table. Draw the electronic configuration of the second row of elements of first group in the periodic table.

Answer the following questions: Considering the elements of period 3 in the modern periodic table, answer the following questions : State the most electronegative element in this period.

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CHETANA PUBLICATION-Periodic Classifications of ELements-EXAMPLE
  1. What is the expected trend in the variation of non-metallic character ...

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  2. What would be the expected trend in the variation of non-metallic char...

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

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

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

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

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

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

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  9. How is the problem regarding the position of cobalt("59CO) and nickel ...

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  10. How did the position of frac(35)(17)Cl and frac(37)(17)Clget fixed in ...

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  11. Can there be an element with atomic mas 53 or 54 in between the two el...

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  12. How are isotopes of different elements placed in the Modern peridic Ta...

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  13. What should be the position of Hydrogen in the Modern periodic Table?W...

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  14. How do you calculate valency of an element from its electronic configu...

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  15. What is the valency of elements with atomic number 8,14,17 and 20 ?

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  16. What was the basis of Mendeleev's classification ?

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  17. What type of relationship of elements was examined by mendeleev?

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  18. How many elements were known when Mendeleev started his work?

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  19. What is meant by periodicity according to Mendeleev?

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  20. What is Mendeleev's Periodic law?

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