A group or family is a vertical column in the periodic table. Groups usually have more significant periodic trends than periods and blocks, explained below. Modern quantum mechanical theories of atomic structure explain group trends by proposing that elements within the same group generally have the same electron configurations in their valence
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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.
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Explore the chemical elements through this periodic table
Chem4s.com! This tutorial introduces the periodic table. Other sections include matter, elements, reactions, and biochemistry.
An up-to-date periodic table with detailed but easy to understand information
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.
John Newlands table of the Elements first published February 7, 1863 Showing comparison to Modern table with group and period classification Note: only H, Li, and Mg in correct placement both period and group
Periodic table of elements with information on chemical elements like gold, silver, iron, neon, helium, chlorine, copper, cobalt, and more
