Chemistry - PERIODIC TABLE Question with Solution | TestHub
ChemistryPERIODIC TABLEElectron Affinity, ElectronegativityMedium2 minQB
ChemistryMediummultiple choice
Select the CORRECT options, against the mentioned properties :-
Options:(select one or more)
Answer:
A, B
Solution:
(A) Sc³⁺ > Sc²⁺ > Sc⁺ (Ionization energy) – Higher positive charge means electrons are held more tightly.
(B) BeF₂ > MgF₂ > CaF₂ > SrF₂ (Lattice energy) – Lattice energy decreases down the group because ionic size increases.
(C) Li⁺(aq) > Na⁺(aq) > K⁺ (Ionic mobility) – Mobility decreases with smaller ions in water due to strong hydration. Correct: K⁺ > Na⁺ > Li⁺
(D) M⁺(g) < M(g) < M²⁺(g) (Electron gain enthalpy) – This order is not correct.
Stream:JEESubject:ChemistryTopic:PERIODIC TABLESubtopic:Electron Affinity, Electronegativity
⏱ 2mℹ️ Source: QB
Doubts & Discussion
Loading discussions...
