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The electronic configuration of an eleme...

The electronic configuration of an element is 2, 8, 4. State its
i] Group and period in the periodic table
ii] Name and write its one physical property.  

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a] It belongs to the group 14 and period III of the periodic table.
 b] The element is Silicon. It is a metalloid.
Its has high melting point
It is a semiconductor.
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ZEN PUBLICATION-PERIODIC CLASSIFICATION OF ELEMENTS-ZEE ADDITIONAL QUESTIONS SECTIONS (SHORT ANSWER (SA) TYPE QUESTIONS)
  1. (i) Predict which of the following elements will form cation and will ...

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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  20. State three reasons for placing chlorine and bromine in the same group...

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