B

Boron

Zosankha 5 · 10.81 u

Metaloid p-block Mphindi 2 _Grupu 13 M'gululi pa RT Wikipedia →

Boron ndi metaloid zofunika kwa kukula mbewu ndi kumagwiritsidwa ntchito mu ntchito zambiri zamakampani.

Zochita za Fiziki

Mafuta10.81 u
Kuwala2.34 g/cm³
Kutentha2349.0 K
Kutentha4200.0 K
KuonekaBlack-brown crystalline yolimba
State at Room TempM'gululi

Makhalidwe a Chemical

Electronegativity2.04 (Pauling)
1st Ionization Energy800.6 kJ/mol
Electron Affinity26.7 kJ/mol
Oxygen+1, +2, +3

Zosankha

Kusintha kwa ma electron[He] 2s2 2p1
Atomic radius87.0 pm
Covalent Radius84.0 pm
Kuwala kwa Van der Waals192.0 pm

Kupeza

Kupezeka ndiJoseph Louis Gay-Lussac, Louis Jacques Thenard
Kuzindikira chaka1808
MaloParis, France
Analimbikitsidwa ndiArabic 'buraq' kapena Persian 'burah' kutanthauza borax

Za ine Boron

Boron ndi metalloid kuti ali mu polymorphs ambiri, ndi zofala kwambiri ndi amorphous Brown ufa ndi golide crystalline forms.It ndi zofunika micronutrient kwa mbewu koma zowopsa mu excess.Boron zosapanga dzimbiri zakhala zikudziwika kwa zaka mamiliyoni.Pure boron anapangidwa koyamba mu 1808.

Kugwiritsa ntchito & Maphunziro

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

Fun Facts

Boron nitride angapange chilengedwe chabwino kwambiri kuposa diamondi ndipo nthawi zina amatchedwa "graphene wofiira".

Isotopes

Kukula kwa maselo Kuchuluka Half-Life Wolimba
10 0.199% - Yes
11 0.801% - Yes

Kusintha kwa ma electron

[He] 2s2 2p1

Kuyerekezera

Kuyerekezera ndi zina zinthu

Kutsegula Zomwe Zimafananiza
← Beriliyumu Kubwerera ku tabula Carbon →