Chemistry+Groups+of+the+Periodic+Table

__Groups for the Periodic Table.__

__1 or 1a Alkali Metals:__
 * Highly reactive (especially with halogens)
 * Low density and melting points

__2 or 2a Alkaline Earth Metals:__
 * Silver toned and soft (can be cut)
 * High melting point
 * Reactive group

__13 or 3a Boron family:__
 * Solid at room temperature
 * High melting point is 2574 degrees Kelvin or 5,000 degrees Fahrenheit
 * Earth metals also

__14 or 4a Carbon Family__:
 * Have 4 valence electrons
 * Vary greatly in characteristics
 * They are relatively nonreactive (less reactive)

__15 or 5a Nitrogen family__: __16 or 6a Oxygen family:__
 * Have 5 valence electrons
 * Nitrogen is 76% of air
 * -337 Fahrenheit are all solid
 * Reactive

__17 or 7a Halogens:__ __18 or 8a Inert gases (noble):__ -sydnie ross.
 * Highly reactive, especially with Alkali Metals
 * Not alone in nature
 * Salt former
 * Salt- metals with a non-metal
 * Non-reactive
 * All gases at room temp.