The metallic lustre exhibited by sodium is explained by

(A) Diffusion of sodium ions

(B) Oscillation of loose electrons

(C) Excitation of free protons

(D) Existence of body–centered cubic lattice

Question

The metallic lustre exhibited by sodium is explained by

(A)    Diffusion of sodium ions       

(B)    Oscillation of loose electrons

(C)    Excitation of free protons

(D)    Existence of body–centered cubic lattice

abb0t · Answer

the unlocaliization of the s-orbital electrons.

anonymous · Answer

Oscillation of loose electrons.  Free electrons can absorb light at all wavelengths, and, if arranged properly, emit it back again in phase.  That is, they can form a mirror.  From the point of view of E&M, a free electron sea forms a reflector for light and radio waves.