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What is diagonal relation? Give one pair...

What is diagonal relation? Give one pair of elements, that have this relation.

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On moving diagonally across the periodic table the elements show certain similarities. An element of group in 2nd period has similar properties with second element of the next higher group in the 3rd period. This type of resemblance is called diagonal relationship e.g. (Li, Mg), (Be, Al), (B, Si)
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VIKRAM PUBLICATION ( ANDHRA PUBLICATION)-CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES-Very Short Answer Questions
  1. What is an amphoteric oxide? Give the formula of an amphoteric oxide f...

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  2. Name the most electronegative element. Is it also having the highest e...

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  3. What is diagonal relation? Give one pair of elements, that have this r...

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  4. How does the nature of oxides vary in the third period?

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  5. Radii of iron atom and its ions follow Fe > Fe^(2+) > Fe^(3+) - explai...

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  6. IE(2) > IE(1) for a given element - why?

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  7. What is lanthanide contraction? Give one of its consequences.

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  8. What is the atomic number of the element, having maximum number of unp...

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  9. Sodium is strongly metallic, while chlorine is strongly non-metallic -...

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  10. Why are zero group elements called noble gases or inert gases?

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  11. Select in each pair, the one having lower ionization energy and explai...

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  12. Select in each pair, the one having lower ionization energy and explai...

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  13. Select in each pair, the one having lower ionization energy and explai...

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  14. Select in each pair, the one having lower ionization energy and explai...

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  15. Select in each pair, the one having lower ionization energy and explai...

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  16. Select in each pair, the one having lower ionization energy and explai...

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  17. Select in each pair, the one having lower ionization energy and explai...

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  18. IE(1) of O < IE(1) of N but IE(2) of O > IE(2) of N - Explain.

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  19. Na^(+) has higher value of ionization energy than Ne, though both have...

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  20. Which is each pair of elements has a more electronegative gain enthalp...

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