Category:pt:Carbon group elements
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Portuguese terms for chemical elements in group 14 of the periodic table, which all have four valence electrons.
NOTE: This is a set category. It should contain terms for carbon group elements, not merely terms related to carbon group elements. It may contain more general terms (e.g. types of carbon group elements) or more specific terms (e.g. names of specific carbon group elements), although there may be related categories specifically for these types of terms.