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RESONANCE-PERIODIC TABLE & PERIODICITY-Advanced Level Problems
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- The correct order of increasing first ionization energy is
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- The group that has the species correctly listed in the order of decrea...
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- The number of valence electrons in an atom with the configuration 1s^(...
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- The compound in which Mn has oxidation state of +3 is
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- The most abundant element found in the earth's crust is:-
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- Einstenium has 11 electrons in the 4f subshell. The number of unpaired...
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- Lanthanoid contraction is caused due to:
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- The outermost electronic configuration of the most electronegative ele...
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- The first ionisation potential of Na,Mg,Al and Si are in the order
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- The first four ionization energies of an element are 191, 578, 872, an...
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- The number of unpaired electron in Ni^(2+) is
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- Europium (Eu) and Terbium (Tb) attain stable 4f^(7) configuration by e...
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- 4s orbitals has less energy than 3d orbital
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- In the compound Na(2)S(2)O(3), the oxidation state of sulphur is:
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- Of the following the ion with the largest size is
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- The correct statement for the molecule CsI(3) is
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- The transtion metals form complexes that involve central metal atom co...
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- The periodic system of the elements in our three-dimensional world is ...
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