Why does KCl become violet in colour when it is heated in presence of potassium vapour?

Why does LiCl acquire pink colour when heated in Li vapours?

F-centres are created when KCl is heated in presence of potassium vapour. F-centre is-

Why does LiCl acquire pink colour when heated in Li vapours ?

When pure NaCI crystal is heated in an atmosphere of sodium vapour it turns yellow. Give reason? KCI shows violet colour when heated In presence of Li vapour- Why?

(a) Why does the colour of NaCl turn yellow when it is heated in an atmosphere of sodium vapour? (b) What is curie temperature?

Why LiCl acquires pink colour when heated in Li vapours?

Why does KCl turn violet on heating in the potassium vapours ?

Why does KCl turn violet on heating in the potassium vapours ?

Why does KCl turn violet on heating in the potassium vapours ?