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Among N^(-3), O^(-2), F^(-), Na^(+), Mg^...

Among `N^(-3), O^(-2), F^(-), Na^(+), Mg^(+2) and Al^(+3)`
(a) What is common in them?

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Given ions are `N^(-3), O^(-2), F^(-), Na^(+), Mg^(+2) and Al^(+3)`
The above ions have same number of electrons (All have 10 electrons). So these are called iso electronic species
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VIKRAM PUBLICATION ( ANDHRA PUBLICATION)-CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES-Very Short Answer Questions
  1. Name the anomalous pairs of elements in the Mendeleev's periodic table...

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  2. How does atomic radius vary in a period and in a group? How do you exp...

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  3. Among N^(-3), O^(-2), F^(-), Na^(+), Mg^(+2) and Al^(+3) (a) What is...

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  4. Among N^(-3), O^(-2), F^(-), Na^(+), Mg^(+2) and Al^(+3) (b) Arrange...

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  5. What is the significance of the term isolated gaseous atom while defin...

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  6. Energy of an electron in the ground state of the hydrogen atom is -2.1...

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  7. Ionization enthalpy [IE1] of O is less than that of N - explain.

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  8. Which in each pair of elements has a more negative electron gain entha...

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  9. Which in each pair of elements has a more negative electron gain entha...

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

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  11. Use the periodic table to identify elements. (a) With 5 electrons in...

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  12. Use the periodic table to identify elements. (b) Would tend to lose ...

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  13. Use the periodic table to identify elements. (c ) Would tend to gain...

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  14. Given the outer electronic configuration of s,p,d and f-block elements...

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  15. Write the increasing order of the metalic character among the elements...

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  16. Write the correct increasing order of non-metallic character for B,C,N...

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  17. Write the correct increasing order of chemical reactivity in terms of ...

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  18. What is electronegativity? How is this useful in understanding the nat...

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  19. What is screening effect? How is it related to IE?

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  20. How are electronegativity and metallic & non-metallic characters relat...

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