What is Metallic bond

Metallic bonds are bonds between metals. Metals lose their valence electrons holding the positive metal ions together due to the strong forces of attraction. [Electrons are negatively charged, so the positive metal ions and the electrons attract to each other]

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.

a electronegativity decreases beacuse the size of nucleus is bigger.