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Boron

Elementị 5 · 10.81 u

Metaloid p-block Oge 2 Ụlọọrụ 13 Òtù na RT Wikipedia →

Boron bụ metaloide dị mkpa maka mmepe osisi na-ejikarị ya eme ihe n'ọtụtụ ọrụ ụlọ ọrụ.

Nkarachọ

Atomic mass10.81 u
Mgbatị2.34 g/cm³
Mmalite2349.0 K
Nhazi4200.0 K
NhaziOji-acha anụnụ anụnụ crystalline solid
Oge n'ime ụlọÒtù

Ihenhọrọ ndị ahụ

Elektrọn2.04 (Pauling)
Nhazi800.6 kJ/mol
Elektrọn26.7 kJ/mol
Oxygenation state+1, +2, +3

Ihenhọrọ nke atom

Nhazi[He] 2s2 2p1
Atomic Radius87.0 pm
Covalent Radius84.0 pm
Van der Waals Radius192.0 pm

Ndesịta ozi ndị ahụ

E chọpụtara site naJoseph Louis Gay-Lussac, Louis Jacques Thenard
Ụbọchị emeredịkachọrọ1808
EbeParis, France
Aha mgbe ahụArabic 'buraq' mọọbụ Persian 'burah' na-egosi borax

Báà Boron

Boron bụ metaloid nke e nwere na ọtụtụ polymorphs, na nke kasị nkịtị bụ amorphous brown ntụ ntụ na ọbara ọbara crystalline ụdị. Ọ bụ a mkpa micronutrient maka osisi ma ọ bụ na-adịghị mma na excess. Boron compounds e nwere a maara maka nde afọ. Pure boron bụ mbụ e mepụtara na 1808.

Usoroiheomume

Borosilicate glass (Pyrex), fiberglass insulation, laundry bleach (borax), semiconductor dopant, na neutron absorber na nuclear reactors.

Eziokwu dị ụtọ

Boron nitride nwere ike mepụta ihe dị ka diamond dị ka ọ dị njọ na mgbe ụfọdụ a na-akpọ ya 'white graphene'.

Isotopes

Nkebi Afọ́ọ̀ltụ̀ Half-Life Òtù
10 0.199% - Ee
11 0.801% - Ee

Nhazi

[He] 2s2 2p1

Tụnyere

Banye na ndị ọzọ

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