B

Boron

Izinto 5 · 10.81 u

I-Metalloid p- iblock Ixesha 2 Iqela 13 I-Solid kwi-RT I-Wikipedia →

I-boron yi-metalloid ebalulekileyo kukukhula kweentaka kwaye isetyenziswa kwizicelo ezininzi zeshishini.

Iimpawu Zobuchopho

Ii-atom10.81 u
Uxinano2.34 g/cm³
Incopho yokubila:2349.0 K
Incopho yokubila:4200.0 K
UkubonakalaI-Crystalline Solid
I-State at Room TempI-Solid

Iimpawu zekhemikhali

Electronegativity2.04 (I-Polygon)
I-Ionization Energy800.6 kJ/mol
Electronegativity:26.7 kJ/mol
Iindawo zokuthambisa+1, +2, +3

Iimpahla zephetshana elichazayo:

Uqwalaselo lwe Electron[He] 2s2 2p1
Atomic radius:87.0 pm
I-Covalent Radius84.0 pm
I-Van der Waals Radius192.0 pm

Ukufumana kwakhona

Ifunyenwe NguJoseph Louis Gay-Lussac, Louis Jacques Thenard
Unyaka Wophando1808
IndawoParis, France
Igama ElilandelayoArabic 'buraq' okanye Persian 'burah' ethetha ukuba borax

I-About Boron

I-boron yi-metalloid ekhoyo kwizinto ezininzi ezinombala ofanayo, eziqhelekileyo ziyi-amorphous brown powder kunye ne-black crystalline forms. Ibalulekile kwizinto ezinomsoco kwimithi kodwa ziyingozi xa zigqithisileyo. Ii-boron compounds ziyaziwayo iminyaka emininzi. I-boron ecocekileyo yakhiwa kuqala ngo-1808.

Iinkqubo

Iglasi ye-borosilicate (i-Pyrex), ukhuselo lweglasi yeglasi, ubisi lokuhlamba (i-borax), i-semiconductor dopant, kunye ne-neutron absorber kwi-nuclear reactors.

Inyathelo 1:

I-boron nitride ingavelisa isakhiwo esinzima kakhulu njengedayimane kwaye ngamanye amaxesha ibizwa ngokuba yi-graphene emhlophe.

I-Isotopes

Inani le-Mass Uninzi Ixesha eliphakathi Iqinile
10 0.199% - Ewe
11 0.801% - Ewe

Uqwalaselo lwe Electron

[He] 2s2 2p1

Uthelekiso

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