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ALLEN-QUANTUM NUMBER & PERIODIC TABLE-J-MAIN EXERCISE
- The numbers of protons, electrons and neutrons in a molecule of heavy ...
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- The first ionisation potential of Na is 5.1 eV. The value of electron ...
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- The negative value of electron gain enthalpy is less for fluorine than...
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- Given Based on data provided, the value of electron gain enthalpy...
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- The order of increasing sizes of atomic radii among the elements O, S,...
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- The correct order of second ionisation potential of C, N, O and F is:
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- Correct set of four quantum numbers for the valence (outermost) electr...
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- Which of the following series correctly represents relations between t...
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- The ionic radii of N^(3-), O^(2-) and F^(-) are respectively given by:
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- In the long form of the periodic table the valence shell electronic co...
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- Which element has the highest first ionization energy?
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- The non-metal that does not exhibit posittve oxidation state is:
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- The electronic configuration with the highest ionization enthalpy 'A' ...
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- Consider the following ionization enthalpies of two elements 'A' and '...
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- In the following reaction, ZnO is respectively acting as a/an (i) Zn...
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- The group having isoelectronic species is :-
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- The correct order of electron affinity is :-
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- For Na^(+),Mg^(2+),F^(-) and O^(2-), the correct order of increasing i...
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