The values of conductivity of some materials at 298.15 K in are , , , , , , . The number of conductors among the materials is .

Question

The values of conductivity of some materials at 298.15 K in  are , , , , , , . The number of conductors among the materials is .

Canvas Classes · Accepted Answer

Strategy:
 Group materials based on the magnitude of their electrical conductivity (). Conductors typically have high conductivity, while insulators have 	extremely low conductivity.

Conductivity Data Analysis ():
1. : High (Conductor) ✓
2. : Extremely low (Insulator)
3.  (): High (Conductor) ✓
4. : Moderate-High (Conductor/Semiconductor boundary, for metals/electrolytes this counts as a conductor) ✓
5. : Low (Semiconductor)
6. : Very low (Insulator)
7. : High (Conductor) ✓

Count:
The 4 mater

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