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Which lanthanide elements have only 1 el...

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

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CHHAYA PUBLICATION-CLASSIFICATION OF ELEMENTS & PERIODICITY IN PROPERTIES-VERY SHORT TYPE QUESTIONS
  1. Identify the transition element(s): K,Mn,Ca,Cs,Fe,Cu,Pb.

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  2. Name two elements which d not give flame test.

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

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  4. Write the outermost electronic configuration of chalcogens.

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

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

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

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  8. Which element has highest oxidising property?

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

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

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  11. What is the unit of electron affinity ?

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

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

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

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

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

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  17. Which element has lowest ionisation potential?

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  18. Which element has highest ionisation potential?

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  19. What is the unit of ionisation potential?

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

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