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Mg^(2+) is smaller than O^(2-) in size, ...

`Mg^(2+)` is smaller than `O^(2-)` in size, throgh both have same electronic configuration. Explain?

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MODERN PUBLICATION-CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES -REVISION EXERCISE (VERY SHORT ANSWER QUESTIONS (CARRYING 2 OR 3 MARKS))
  1. Which element has the lowest first ionization energy?

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

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

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

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

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

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

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

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

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  10. ELECTRON GAIN ENTHALPY

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

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

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

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  14. Ionisation Enthalpy

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

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

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  17. Write the electronic configuration of the element with atomic number o...

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  18. What do you underrstand by negative value of electro-gain enthalpy of ...

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  19. Water is a compound and not a mixture. Justify the statement giving tw...

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  20. The number of elements in the 4th period of periodic table is

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