How are metals different from nonmetals

Metals: lustrous (shiny) good conductors of heat and electricity high melting pointhigh density, malleable (can be hammered) ductile usually solid at room temperature

Nonmetals: not lustrous, poor conductors of heat and electricitynonductile solidsbrittle solidsmay be solids, liquids or gases at room temperaturetransparent as a thin sheetnonmetals are not sonorous

The correct name for n3-ion should be azide.