Which of the following order is correct for t | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) $1$. Option $A$: $S^{2-}, Cl^{-}, K^{+}, Ca^{2+}$ are isoelectronic species with $18$ electrons. Ionisation energy increases as the nuclear charge

Vedclass · Accepted Answer

$B > Al > Ga > In > Tl$ (Electronegativity)

Vedclass · Answer

(C) $1$. Option $A$: $S^{2-}, Cl^{-}, K^{+}, Ca^{2+}$ are isoelectronic species with $18$ electrons. Ionisation energy increases as the nuclear charge $(Z)$ increases. The order should be $Ca^{2+} > K^{+} > Cl^{-} > S^{2-}$. Thus,$A$ is incorrect.$2$. Option $B$: The $2^{nd}$ ionisation energy involves removing an electron from a cation. For $C^{+}$,$N^{+}$,$O^{+}$,$F^{+}$,the order is $C $3$. Option $C$: Electronegativity generally decreases down a group. The order $B > Al > Ga > In > Tl$ is correct as it follows the group trend.$4$. Option $D$: Ionic radius for isoelectronic species decreases as nuclear charge increases. The correct order is $Na^{+} > Mg^{2+} > Al^{3+}$ and $Li^{+} > Be^{2+}$. The given order is incorrect.

Which of the following order is correct for the property mentioned in brackets?

Similar Questions

Going from fluorine to chlorine,bromine and iodine,the electronegativity

Which of the following is the correct order of electronegativity?

Select the incorrect order of electronegativity of the element.

Which element has the highest electronegativity?

The correct order of electronegativity of group $13$ elements is

Vedclass Test Series

Exam Paper Generator

Online Exam Module