Element Group Numbers
27th June 2014
Actinoid element: Actinoid element, any of a series of 15 consecutive chemical elements in the periodic table from actinium to lawrencium (atomic numbers 89–103).
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In mathematics, a group is an algebraic structure consisting of a set of elements equipped with an operation that combines any two elements to form a third element and that satisfies four conditions called the group axioms, namely closure, associativity, identity and invertibility.
Element definition, a component or constituent of a whole or one of the parts into which a whole may be resolved by analysis: Bricks and mortar are …
Carbon group element: Carbon group element, any of the six chemical elements that make up Group 14 (IVa) of the periodic table—namely, carbon (C), silicon (Si), germanium (Ge), tin (Sn), lead (Pb), and flerovium (Fl).
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The group number is an identifier used to describe the column of the standard periodic table in which the element appears. Groups 1-2 termed s-block elements.
In chemistry, a group (also known as a family [citation needed]) is a column of elements in the periodic table of the chemical elements.There are 18 numbered groups in the periodic table, and the f-block columns (between groups 3 and 4) are not numbered.
