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Why Mg^(2+) ion is smaller than O^(2-) a...

Why `Mg^(2+)` ion is smaller than `O^(2-)` althrough both have the same electronic configuration ?

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MBD PUBLICATION-CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES-QUESTION BANK
  1. What is oxidation number ?

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  2. How many atoms of fluorine are there in 1.9 xx 10^(-6) gms of fluroine...

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  3. Why Mg^(2+) ion is smaller than O^(2-) althrough both have the same el...

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  4. Why ionosation energy of magnesium is greater than aluminium ?

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  5. Why electron affinity of Be is zero ?

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  6. What are sigma and pi-bond's ? What is the bond angle and shape of the...

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  7. Why electron affinity of nitrogen is zero.

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  8. What is the sum of the oxidation number of all the atoms in a neutral ...

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  9. Explain with reason : Alkali metals do not form dipositive ions.

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  10. Expalin with reason : Electronegativity values of inert gases are zero...

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  11. Justify the position of carbon and lead in the periodic table on the b...

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  12. The electronic configuration of an element in 1s^2 ,2s^2 , 2p^6 , 3s^2...

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  13. Explain on the basis of electronic configuration why fluorine and chlo...

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  14. The electronic configuration of an element in 1s^2 ,2s^2 , 2p^6 , 3s^2...

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  15. Among the four halogens name one which has : highest value of electr...

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  16. What is oxidation number ?

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  17. Explain why the ionisation energy of nitrogen is more than that of oxy...

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  18. The atomic numbers of N,Be and Mg are 7, 4 and 12 respectively. Explai...

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  19. Electron affinities of halogens are high why ?

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  20. Why is electron affinity of Si^(14) is greater than of p^15 ?

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