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What is ionisation energy? How does ioni...

What is ionisation energy? How does ionisation energy vary along the period in the modern periodic table ?

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The energy required to remove the electron from the outermost shell of an isolated gaseous atom is known as ionisation energy.
It increases while going from left to right in modern periodic table.
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OSWAAL PUBLICATION-PERIODIC CLASSIFICATION OF ELEMENTS-TOPIC:2-SHORT ANSWER TYPE QUESTIONS-I
  1. What is ionisation energy? How does ionisation energy vary along the p...

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  2. What are electropositive atoms? How does electropositivity vary along ...

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  3. Elements in the periodic table show periodicity of properties. List an...

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  4. Mention any two trends exhibited by elements when we go from left to r...

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  5. How does the metallic character of the elements vary (i) in a group, (...

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  6. How would the tendency to lose electrons change as you go i] from le...

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  7. How does the atomic radius change as we go : (i) from left to right ...

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  8. (i) State the basis of classification of elements in the modern period...

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  9. How does metallic character of elements vary on moving from : (i) Le...

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  10. The atomic radii of three elements A, B and C of a periodic table are ...

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  11. (i) Atomic number of Mg and Al are 12 and 13, respectively. Write down...

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  12. Arrange the following elements in the descending order of atomic size ...

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  13. Three elements X, Y and Z belong to 17^(th) group but 2^(nd),3^(rd)and...

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  14. i] Atomic radius of hydrogen is 37 pm. Express it in metres. ii] How...

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  15. Nitrogen (atomic number 7) and phosphorous (atomic number 15) belong t...

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  16. Na, Mg, Al and P belong to 3^(rd) period but are placed in first, seco...

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  17. (i) Element 'Y' with atomic number 3 combines with element 'A' with at...

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  18. (i) How does the tendency to gain electrons change as we go down the g...

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  19. Given below are atomic radii of same elements of second period. {:("...

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  20. Out of the elements X and Y, which has bigger atomic radius? Give reas...

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