Chemistry · Ionic Bonding: Formation of ionic bonds, factors affecting the formation of ionic bonds; calculation of lattice enthalpy
The compound in which cation is isoelectronic with anion is:
The compound in which cation is isoelectronic with anion is:
- A. \( N a C l \)
- B. \( C s F \)
- C. \( N a I \)
- D. \( K_{2} \)
Step-by-step solution
In K2S, K+ loses one electron to achieve Ar configuration (18 e⁻), and S gains two electrons to also achieve Ar configuration (18 e⁻), making them isoelectronic. In NaCl, Na+ (10 e⁻) and Cl⁻ (18 e⁻) differ; in CsF, Cs+ (54 e⁻) and F⁻ (10 e⁻) differ; in NaI, Na+ (10 e⁻) and I⁻ (54 e⁻) differ.
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