View source for Boron group



{| align="right" style="margin:0 0 1em 1em;"
! [[Periodic table group|Group]]
! 13
|-
! [[Periodic table period|Period]]
|-
! [[Period 2 element|2]]
| {{element cell| 5|Boron|B| |Solid|Metalloids|Primordial}}
|-
! [[Period 3 element|3]]
| {{element cell|13|Aluminium|Al| |Solid|Poor metals|Primordial}}
|-
! [[Period 4 element|4]]
| {{element cell|32|Gallium|Ga| |Solid|Poor metals|Primordial}}
|-
! [[Period 5 element|5]]
| {{element cell|51|Indium|In| |Solid|Poor metals|Primordial}}
|-
! [[Period 6 element|6]]
| {{element cell|81|Thallium|Tl| |Solid|Poor metals|Primordial}}
|-
! [[Period 7 element|7]]
| {{element cell|113|Ununtrium|Uut| |Solid|Poor metals|Synthetic}}
|}

The '''boron group''' is the [[chemical series|series]] of [[Chemical element|elements]] in [[periodic table group|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 metal]]s 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%).

{|style="text-align: center;" border="1" cellpadding="2" 
|+ '''Explanation of above periodic table slice:'''
! bgcolor="{{element color/Metalloids}}" | [[Metalloid]]s
! bgcolor="{{element color/Poor metals}}" | [[Poor metal]]s
| atomic number in <font color="{{element color/Solid}}">{{element color/Solid}}</font> are solids
| style="border:{{element frame/Primordial}};" | solid borders are [[primordial element]]s (older than the [[Earth]])
| style="border:{{element frame/Synthetic}};" | dotted borders are [[radioactive decay|radioactive]], [[synthetic element]]s
|}


{{inorganic-compound-stub}}
{{PeriodicTablesFooter}}
[[Category:Periodic table]]
[[Category:Chemical element groups|Group 13]]

[[ar:مجموعة بورون]]
[[ast:Elementos del grupu 13]]
[[ca:Grup del bor]]
[[cs:Triely]]
[[de:Borgruppe]]
[[es:Elementos del grupo 13]]
[[eo:Elemento de grupo 13]]
[[ko:13족 원소]]
[[lmo:Grupp del bòor]]
[[nl:Boorgroep]]
[[ja:第13族元素]]
[[nn:Gruppe 13]]
[[pt:Grupo do boro]]
[[sr:13. група хемијских елемената]]
[[sh:13. grupa hemijskih elemenata]]
[[fi:Booriryhmä]]
[[sv:Borgruppen]]
[[th:หมู่โบรอน]]
[[vi:Nhóm Bo]]
[[tr:Bor grubu]]

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