Alkali and alkaline earth metals impart colours when heated over burner. It is due to______________?

Chemistry Mcqs

Alkali and alkaline earth metals impart colours when heated over burner. It is due to______________?

(A)  Smaller electronegativity of alkali metals

(B)  Smaller ionic radius of these metals

(C)  De-excitation of electrons from higher energy levels to low energy level

(D)  Excitation of electrons from low energy levels to higher energy levels

Submitted By :Ali Uppal

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