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Which element is non-metal with valency ...

Which element is non-metal with valency 3?

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The following table shows the position of six elements A,B,C,D,E and F in the periodic table Using the above table , answer the following questions: Which element is a non-metal with valency 3?

Which element is a metal with valency2?

The following table shows the position of six elements A,B,C,D,E and F in the periodic table Using the above table , answer the following questions: Which element is a metal with valency 2?

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CHETANA PUBLICATION-Periodic Classifications of ELements-EXAMPLE
  1. Write down the electronic configuration of the following elements from...

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  2. Which element is a metal with valency2?

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  3. Which element is non-metal with valency 3?

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  4. Write a common name for the family of elements C and F?

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  5. Chlorine has two isotopes, viz. Cl-35 and Cl-37 Their atomic masses ar...

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  6. A metal M forms an oxide having the formula M2O3. It belongs to 3rd pe...

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

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

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  9. Which of the above elements have the biggest and the smallest atom?

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  10. What is the periodic trend observed in the variation of atomic radii d...

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  11. Classify the elements of the third period into metals and non-metals.

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  12. On which side of the period did you find the Non-metals?

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  13. What is the cause of non-metallic character of element?

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  14. What is the expected trend in the variation of non-metallic character ...

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

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

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

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

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

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

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