Which one of the following bonds produces a solid that reflects light in the visible region and whose electrical conductivity decreases with temperature and has high melting point.
metallic bonding
van der Waal's bonding
ionic bonding
covalent bonding
Conductor -
When there is no energy gap between valence band and conduction band.
- wherein
1) Very high conductivity .
2) Very high free electron density
Cu, Ag, Au, Na etc.
All these are characteristics of the metallic bond.
Option 1)
metallic bonding
This option is correct
Option 2)
van der Waal's bonding
This option is incorrect
Option 3)
ionic bonding
This option is incorrect
Option 4)
covalent bonding
This option is incorrect