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What is the change observed in the coval...

What is the change observed in the covalent character of the oxides of the elements starting from Na to Cl in the third period?

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CHHAYA PUBLICATION-CLASSIFICATION OF ELEMENTS & PERIODICITY IN PROPERTIES-VERY SHORT TYPE QUESTIONS
  1. Name two elements which d not give flame test.

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  2. Which lanthanide elements have only 1 electron in 5d-subhsell?

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  3. Write the outermost electronic configuration of chalcogens.

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  4. What will be the position in periodic table of the element having elec...

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  5. Mention the position of the pnictogens in the lonf form of the periodi...

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  6. Write in decreasing order: covalent radius, van der waals radius, meta...

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  7. Which element has highest oxidising property?

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  8. Give one example of each of metal, non metal, metalloid present in the...

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  9. Give the names of two non-metals present in s-block of the periodic ta...

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  10. What is the unit of electron affinity ?

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  11. Is the value of electron affinity of an element be zero?

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  12. Between Fe^(2+) and Fe^(3+), which is smaller in size and why?

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  13. Which element of each pair has higher electron affinity? (i) Br, Cl ...

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  14. The first ionisation potential of carbon is 11.2 eV. State whetehr the...

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  15. Arrange s,p,d & f-subshells according to their screening power.

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  16. Which element has lowest ionisation potential?

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  17. Which element has highest ionisation potential?

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  18. What is the unit of ionisation potential?

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  19. What is the change observed in the covalent character of the oxides of...

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  20. Arrange Mg, Al, Si and Na in the increasing order of their ionisation ...

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