The sum of cationic and anionic radius in a crystal lattice is equal to:
Correct answer: B. Inter ionic distance R
- A. Inter-titian distance R
- B. Inter ionic distance R
- C. Inter-cationic distance R+
- D. Inter-anionic distance R-
Explanation
Option B is correct.The sum of cationic and anionic radius in a crystal lattice is equal to the interionic distance. The interionic distance is the distance between the centers of two ions in a crystal lattice. It is determined by the size of the ions and the type of bonding between them.Ionic solids, the interionic distance is typically equal to the sum of the radii of the cation and anion. This is because the ions are held together by the electrostatic force between their opposite charges. The stronger the electrostatic force, the closer the ions will be together.In covalent solids, the interionic distance is typically smaller than the sum of the radii of the cation and anion. This is because the electrons are shared between the atoms, which reduces the effective size of the ions.
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