families/groups

• noble gases = group 18
• noble gases do NOT form ions
• Alkali metals are shiny, soft, silver, VERY SOLUBLE IN WATER
• Most reactive non metals = halogens / group 17
• inert= noble gases
• all diatomic molecules = halogens
• high melting points + multivalent = transition metals
• ions with 2+ charge : alkaline earth metals (group 2)