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Write the name, symbol and electronic co...

Write the name, symbol and electronic configuration of an element X whose atomic number is 11.

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‘X. is Sodium
Its symbol is Na Its electronic configuration is 2,8,1.
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ZEN PUBLICATION-PERIODIC CLASSIFICATION OF ELEMENTS-ZEE ADDITIONAL QUESTIONS SECTIONS (SHORT ANSWER (SA) TYPE QUESTIONS)
  1. Draw a part of the long form of the periodic table showing a non-metal...

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  2. (i) Predict which of the following elements will form cation and will ...

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  3. Write the name, symbol and electronic configuration of an element X wh...

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  4. The electronic configuration of an element is 2, 8, 4. State its i] ...

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  5. Can the following groups of elements be classified as Dobereiner's Tri...

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  6. An element 'X' has atomic number 13. a] Write its electronic config...

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  7. Choose from the following ""(6)C , ""(8)O, ""(10)N e, ""(11)Na, ""(1...

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  8. How does the valency of elements vary a) in going down a group b)...

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

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

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

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  12. The position of elements A, B, C, D in the modern periodic table is gi...

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  13. ‘Hydrogen occupies a unique position in the Modern Periodic Table.' Ju...

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  14. Write the formula of the product formed when the element A (atomic num...

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  15. a) Discuss any two achievements of the Modern Periodic Table. b) Dis...

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  16. a] Why are sodium and chlorine placed in the same period in the Modern...

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  17. What is the basis of the Modern Periodic Table? Why lithium with atomi...

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  18. a] Mention the relative position of metals, non-metals, and metalloids...

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  19. The elements Be, Mg, and 20Ca each having two valence electrons in the...

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  20. Based on the group valency of elements state the formula for the follo...

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