Question

Explain the following:- (i) The radius of Na+ is less than that of Na.​

Answer 1

Answer:

The atomic radius of Na⁺ is less than that of Na,because due to the loss of 1e ⁻,the inter electronic repulsion by the electrons in the inner shell decreases. As the interelectronic repulsion decreases, the attraction between the nuclei and the outermost electron increases,leading to the decrease in the atomic size.