Periodic Table

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Q JEE MAIN 2020

B has a smaller first ionization enthalpy than Be. Consider the following statements.
(I) It is easier to remove 2p electron than 2s electron...

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Q JEE MAIN 2019

The element that usually does NOT show variable oxidation states is

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Q JEE MAIN 2019

The correct order of the atomic radii of C, Cs, Al, and S is

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Q JEE MAIN 2020

The first ionization energy (in kJ/mol) of Na, Mg, Al and Si respectively, are

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Q JEE MAIN 2020

The ionic radii of $\mathrm{O}^{2-}, \mathrm{F}^{-}, \mathrm{Na}^{+}$and $\mathrm{Mg}^{2+}$ are in the order

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Q JEE Main 2019

The electronegativity of aluminium is similar to

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Q JEE MAIN 2020

The elements with atomic numbers 101 and 104 belong to, respectively,

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Q JEE MAIN 2020

The process that is NOT endothermic in nature is

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Q JEE MAIN 2019

The relative stability of +1 oxidation state of group 13 elements follows the order :

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Q JEE MAIN 2019

The correct option with respect to the Pauling electronegativity values of the elements is:

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