* a- good conductors of heat: Metals are excellent conductors of heat, allowing heat to transfer easily through them.

* b- form positive ions: Metals tend to lose electrons, forming positively charged ions. This is a key characteristic of their bonding.

* c- can be stretched or drawn into wires: Metals are malleable (can be hammered into shapes) and ductile (can be drawn into wires) due to their metallic bonding.

* d- many are liquids: While some metals like mercury are liquid at room temperature, the vast majority of metals are solid at room temperature.

Therefore, the statement that "many are liquids" is not true about metals.