Nonmetals are defined as elements that generally cannot conduct and are poor conductors of heat

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.

fe 55.85 g/mol and h2o 18.02 g/mol.

answer:

technetium is the most reactive. this is followed by silver. the least reactive out of these three elements is strontium.