Colorless, odorless and almost completely nonreactive gases
Mostly dense, hard, and brittle metals that conduct heat and electricity well and have high melting points
Very reactive, low melting points, excellent conductors of heat and electricity
More brittle metals with a poorer mechanical strength compared to transition metals
React readily, form numerous compounds, not found free in nature
Quite reactive and tend to bond with alkali metals
Shiny, silvery metals, typically ductile and malleable
Few occur naturally and all are radioactive
Intermediate conductivity, used in semiconductor technologies in electronic devices
Poor conductors, brittle and non-malleable, typically gain electrons
Actinides
Alkali metals
Alkaline earth metals
Halogens
Lanthanides
Metalloids
Noble Gases
Nonmetals
Post-transition metals
Transition metals
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