In an anion:-

Important Questions on Classification of Elements and Periodicity in Properties

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Beta Question Bank for Medical: Chemistry>Chapter 12 - Classification of Elements and Periodicity in Properties>EXERCISE-I (Conceptual Questions)>Q 49

Spot the incorrect order of atomic radii:-

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Beta Question Bank for Medical: Chemistry>Chapter 12 - Classification of Elements and Periodicity in Properties>EXERCISE-I (Conceptual Questions)>Q 51

The decreasing order of size of ions is :-

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Beta Question Bank for Medical: Chemistry>Chapter 12 - Classification of Elements and Periodicity in Properties>EXERCISE-I (Conceptual Questions)>Q 53

The covalent and Van der Waal's radii of hydrogen, respectively are:-

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Beta Question Bank for Medical: Chemistry>Chapter 12 - Classification of Elements and Periodicity in Properties>EXERCISE-I (Conceptual Questions)>Q 55

Element having maximum number of low shielding electrons:-

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Beta Question Bank for Medical: Chemistry>Chapter 12 - Classification of Elements and Periodicity in Properties>EXERCISE-I (Conceptual Questions)>Q 56

Incorrect order of ionic radius is:-

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Beta Question Bank for Medical: Chemistry>Chapter 12 - Classification of Elements and Periodicity in Properties>EXERCISE-I (Conceptual Questions)>Q 57

According to Slater's rule, order of effective nuclear charge for last electron in case of $\mathrm{Li}, \mathrm{Na}$ and $\mathrm{K}$:-

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Beta Question Bank for Medical: Chemistry>Chapter 12 - Classification of Elements and Periodicity in Properties>EXERCISE-I (Conceptual Questions)>Q 58

Rank the $4\mathrm{p},4\mathrm{d}$ and $4\mathrm{f}$ orbitals of increasing order in which the electrons present in them are shielded by inner electrons

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Beta Question Bank for Medical: Chemistry>Chapter 12 - Classification of Elements and Periodicity in Properties>EXERCISE-I (Conceptual Questions)>Q 61

 The second ionisation potentials in electron volts of oxygen and fluorine atoms are respectively given by