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Arrange the following materials in the order of decreasing electrical conductivity:Silicon, Glass, Aluminium, Silver

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Arrange the following materials in the order of decreasing electrical conductivity:
Silicon, Glass, Aluminium, Silver
  • AGlass, Silicon, Aluminium, Silver
  • BAluminium, Silver, Glass, Silicon
  • CSilver, Silicon, Aluminium, Glass
  • DSilver, Aluminium, Silicon, Glass
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Conductivity is depends upon number of electrons present in outer shell of atom i.e. Valence electron.

It is inversely proportional to outer shell electron number i.e. If number of electron is high then conductivity is low and vice versa.

Number of electrons in outer shell of silver, aluminium, silicon, glass are 1, 3, 4, 8, so that conductivity is decreasing from silver to glass.

Silver > Aluminium > Silicon > Glass.