7. Which group of elements does not have metallic properties? alkali metals
alkaline earth elements
o noble gases
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Typically non-metals are not able to conduct electricity or heat very well and are often gases, such as oxygen, or solids, like carbon. Therefore, non-metals are the elements in groups 14-16 of the periodic table.

a plasma is a warm ionized gasoline consisting of approximately equal numbers of definitely charged ions and negatively charged electrons. the characteristics of plasmas are notably unique from the ones of ordinary neutral gases in order that plasmas are considered a awesome "fourth kingdom of remember."