main group
Noun
Meaning
(chemistry) In the periodic table of the elements, any of the eight groups (columns) of elements in the s and p blocks.
(chemistry, dated) The same, plus the elements of group 12.
Source: en.wiktionary.orgNoun
(chemistry) In the periodic table of the elements, any of the eight groups (columns) of elements in the s and p blocks.
(chemistry, dated) The same, plus the elements of group 12.
Source: en.wiktionary.org