Chemistry — Metals, Non-metals & Metalloids
Element classification by physical/chemical character.
Make it your own.
title "Classifying the elements"
set M "Metals"
set N "Non-metals"
set B "Metalloids"
only "M" "Conductive, malleable"
only "N" "Insulating, brittle"
only "B" "Semiconducting"
intersect "M,B" "Some metallic lustre"
intersect "N,B" "Some non-metal behaviour"