AIIMS2018ChemistryStructure of Atom
In the P ³⁻, S ²⁻ and Cl ⁻ ions, the increasing order of size is
Options
- AS ²⁻ < Cl ⁻ < P ³⁻
- BCl ⁻ < S ²⁻ < P ³⁻
- CS ²⁻ < P ³⁻ < Cl ⁻
- DP ³⁻ < S ²⁻ < Cl ⁻
Correct answer
B. Cl ⁻ < S ²⁻ < P ³⁻
Step-by-step solution
In isoelectronic species, the size of ions increases as negative charge increases. Therefore, Cl ⁻ < S ²⁻ < P ³⁻ .