For isoelectronic species the size is compared by nuclear charge.
Size of isoelectronic species is compared on the basis of their nuclear charge.
The size of the iso-electronic species Cl− , Ar and Ca2+ is affected by:
Held on 8 Apr 2019 · Verified 6 Jul 2026.
nuclear charge
azimuthal quantum number of valence shell
electron –electron interaction in the outer orbitals
Principal quantum number of valence shell
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First and second ionization enthalpies of lithium are $520$ kJ mol$^{-1}$ and $7297$ kJ mol$^{-1}$ respectively. Energy required to convert $3.5$ mg lithium (g) into $\text{Li}^{2+}$(g) $[\text{Li(g)} \rightarrow \text{Li}^{2+}\text{(g)}]$ is _______ kJ mol$^{-1}$. (nearest integer) [Molar mass of Li $= 7$ g mol$^{-1}$]
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Which of the following elements has the highest electronegativity?
Which of the following elements has the highest electronegativity?
In a period, the first ionisation enthalpy of the element at extreme left and the negative electron gain enthalpy of the extreme right element, except noble gases, are respectively.
Work through every JEE Main Inorganic Chemistry PYQ, year by year.