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SURA PUBLICATION-PERIODIC CLASSIFICATION OF ELEMENTS -ADDITIONAL QUESTIONS & ANSWERS ( VERY SHORT ANSWERS )
- Define Modern periodic table .
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- Define periodicity.
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- Why are elements of group 18 unreactive ?
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- What is the significance of modern periodic table ?
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- Name the periodic properties and why are they called so ?
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- Define atomic radius.
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- Define metallic radius.
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- Define covalent radius .
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- The value of d(C-C) distance is experimentally found to be 1.54Å. F...
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- What do you infer from this figure ?
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- Explain the variation of atomic radius (i) across the period (ii) alo...
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- Why do atomic radii increase down the group ?
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- Arrange the following element in the increasing order of atomic size ....
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- Among the following pairs , pick out the smallest . (i) Mg, Ca (ii) ...
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- Atomic radii decreases as we move from left to right of periodic tabl...
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- Say whether the following diagrammatic representation in true or fal...
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- Define the term Ionic Radii.
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- Define ionisation energy or Ionisation enthalpy .
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- Define electron affinity .
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- "Noble gases have zero electron affinity " . Say True and False and ...
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