9 Non-Metals: PHYSICAL PROPERTIES CHEMICAL PROPERTIES Poor conductors of electricity and heatReactive with other elements10 out of the 16 nonmetals are gases at room temperatureDullNot shinyBrittle (not malleable or ductile)
10 Carbon Family: Group 14Only Carbon, in the Carbon Family, is a nonmetal.
11 Nitrogen Family: Group 15 Nitrogen Family contains two nonmetals: Nitrogen and Phosphorus
12 Oxygen Family: Group 16The Oxygen Family contains three nonmetals: Oxygen, Sulfur, and Selenium.
13 Halogen Family: Group 17 Halogen = salt forming All but Astatine are nonmetals
15 Hydrogen: the simplest and smallest atom in the Periodic Table of Elements Because the chemical properties of Hydrogen differ very much from those of the other elements, it really cannot be grouped into a family.
16 MetalloidsMETALLOIDS HAVE SOME CHARACTERISTICS OF BOTH METALS AND NONMETALSSOLIDS ARE ROOM TEMPERATUREBRITTLEHARDSOMEWHAT REACTIVE