Periodic Table Groups Names. The f block columns between groups 2 and 3 are not numbered. The periodic table is an arrangement of the elements in order of their atomic numbers so that elements with similar properties appear in the same vertical column or group.
Notice that several of the. The elements in a group have similar physical or chemical characteristics of the outermost electron shells of their atoms i e the same core charge because. Each square shows the chemical symbol of the element along with its name.
According to the new recommendations of international union of pure and applied chemistry iupac the groups are numbered from 1 to 18.
Alkali metals or lithium family. Alkaline earth metals or beryllium family. The figure below shows the most commonly used form of the periodic table. There are 18 groups in the long form of the periodic table.