Boron group

The boron group is the series of elements in group 13 (IUPAC style) in the periodic table. The group has previously also been referred to as the earth metals and the triels, from the Latin tri, three, stemming from the naming convention of this group as Group IIIB. These elements are characterized by having three electrons in their outer energy levels (valence layers). Boron is considered a metalloid, and the rest are considered metals of the poor metals groups.

The boron group consists of boron (B), aluminium (Al), gallium (Ga), indium (In), thallium (Tl), and ununtrium (Uut) (unconfirmed).

Boron occurs sparsely probably because of disruption of its nucleus by bombardment with subatomic particles produced from natural radioactivity. Aluminum occurs widely on earth and in fact, it is the third most abundant element in the earth's crust (7.4%).

مجموعة بورون Elementos del grupu 13 Grup del bor Triely Borgruppe Elementos del grupo 13 Elemento de grupo 13 13족 원소 Grupp del bòor Boorgroep 第13族元素 Gruppe 13 Grupo do boro 13. група хемијских елемената 13. grupa hemijskih elemenata Booriryhmä Borgruppen หมู่โบรอน Nhóm Bo Bor grubu