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Predict the periods and blocks to which ...

Predict the periods and blocks to which each of the following elements belongs ?
(i) `_(13)Al`
(ii) `_(24)Cr`
(iii) `_(29)Cu`
(iv) `_(11)Na`

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MODERN PUBLICATION-CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES -REVISION EXERCISE (VERY SHORT ANSWER QUESTIONS (CARRYING 2 OR 3 MARKS))
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  2. Write the electronic configurations for the elements with atomic numbe...

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  3. Predict the periods and blocks to which each of the following elements...

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  4. What is ionization energy ? How does it change in a period as well as ...

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  5. Which element has the lowest first ionization energy?

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  6. Which of the following electronic configurations has the lowest value ...

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  7. Mg^(2+) is smaller than O^(2-) in size, throgh both have same electron...

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  8. The five successive energies of an element are 800, 2427, 3658, 25024 ...

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  9. How would you explain the fact that the first ionization enthalpy of L...

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  10. Describe the theory associated with the radius of an atom as it a. g...

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  11. What are the major differences between metals and non-metals?

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  12. Write the general outer electronic configuration of s-,p-,d- and f-blo...

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  13. The increasing order of reactivity among group 1 elements is LiltNaltK...

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  14. ELECTRON GAIN ENTHALPY

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  15. How does atomic radius of an element vary across a period fr...

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  16. Statement-1: The atomic radii of the elements of the oxygen family are...

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  17. What are isoelectronic ions ? Account for the decrease in size of the ...

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  18. Ionisation Enthalpy

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  19. Fe^(2+) and Fe^(3+) can be distinguished by

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  20. Which of the following pairs of elements would have a more negative el...

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