When crystals of LiCl are heated in an atmosphere of Li vapour the Lithium atoms are deposited on the surface of crystal. The Cl- ions diffuse to the surface of crystal & combine with Li atoms to from LiCl which happens by loss of electrons by Li atoms to form ions. These released elements diffuse into the crystal & electrons get excited after absorbing light from visible region & emit pink colour.
Excess of lithium makes LiCl crystal pink. Explain.
Answers
RISHI
When crystals of LiCl are heated in an atmosphere of Li vapour the Lithium atoms are deposited on the surface of crystal. The Cl- ions diffuse to the surface of crystal & combine with Li atoms to from LiCl which happens by loss of electrons by Li atoms to form ions. These released elements diffuse into the crystal & electrons get excited after absorbing light from visible region & emit pink colour.