Define atomic size or atomic radius of an element. Why is it not possible to determine its absolute value?
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Long Answer Type
What do you mean by covalent radius?
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How do atomic radius vary in a period and in a group? How do you explain the variation?
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Short Answer Type
Why do the noble gas elements have exceptionally high atomic radii? Or In a period, generally the size of the atom decreases with rise in atomic number, but at the end of each period, atomic size of the noble gas increases abruptly. Why is it so?
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Long Answer Type
Define vander Waal’s radius and compare it with covalent radius.
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Short Answer Type
Atomic radii of noble gases are essentially the vander Waal's radii. Comment.
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What is ionic radius?
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Why is the radius of cation less than that of parent atom?
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Why is the radius of anion more than that of the parent atom?
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Long Answer Type
What does atomic radius and ionic radius really mean to you?