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bn:01227396n
Noun Concept
Categories: Articles with short description, Chemistry stubs, Sets of chemical elements
EN
main group  main-group element  Representative Element  main-group elements  Main block element
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In chemistry and atomic physics, the main group is the group of elements whose lightest members are represented by helium, lithium, beryllium, boron, carbon, nitrogen, oxygen, and fluorine as arranged in the periodic table of the elements. Wikipedia
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In chemistry and atomic physics, the main group is the group of elements whose lightest members are represented by helium, lithium, beryllium, boron, carbon, nitrogen, oxygen, and fluorine as arranged in the periodic table of the elements. Wikipedia
A set of elements consisting of Groups 1, 2 and 13 to 18 in the periodic table Wikidata
In the periodic table of the elements, any of the eight groups (columns) of elements that contain the lightest (and most common) elements. Wiktionary
Group of elements. Wiktionary (translation)