Which general statement does not apply to metals?
a. most metals are ductile.
b. most metals are malleable.
c. most metals are brittle.
d. most metals are good conductors of electric current.

distance, luminosity, brightness, radius, chemical composition, and temperature

conduction is the transfer of thermal energy (heat in transfer) due to collisions between the molecules in the object. collisions between adjacent atoms and molecules transfer kinetic energy from the warmer to the cooler object. the objects must be in physical contact.