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Write any two characteristic properties ...

Write any two characteristic properties of alkali metals.

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· Alkali metals readily lose their outermost electron to form +1 ion.
· Alkali metals are soft metals with low melting and boiling points.
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FULL MARKS-PERIODIC CLASSIFICATION OF ELEMENTS -Additional Questions(2 MARK QUESTIONS)
  1. Write a note about the electronic configuration of elements in groups.

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  2. Give the name and electronic configuration of elements of 1^(st) group...

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  3. Write any two characteristic properties of alkali metals.

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  4. Write any two characteristic properties of alkaline earth metals.

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  5. Groups from 13 to 18 in the periodic table are called p-block elements...

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  6. Why noble gases do not show much of chemical reactivity?

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  7. Halogens and chalcogens have highly negative electron gain enthalpies....

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  8. What are d-block elements? Why are they called so?

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  9. Elements Zn, Cd and Hg with electronic configuration (n-1)d^(10) ns^(2...

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  10. Why Zn, Cd and Hg are considered as soft metals?

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  11. Why d- block elements are known as transition element ?

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  12. What are f-block elements? How many series are there? Why they are cal...

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  13. Give the general electronic configuration of lanthanides and actides?

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  14. What are lanthanides and actinides?

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  15. What are semi - metal ? Give example.

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  16. What are periodic properties ? Give example.

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  17. Define ionic radius.

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  18. Cationic radius is smaller than its corresponding neutral atom. Justif...

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  19. Anionic radius is higher than the corresponding neutral atom. Give rea...

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  20. What are isoelectronic ions ? Give examples.

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