Eigenschappen

CAS Number7440-42-8
PubChem CID5462311
Atoomstraal90
Atoomvolume4,6
Atomair gewicht10,811
Blokp
Kookpunt3.927
Bulk Modulus
CategorieMetalloïden
KristalstructuurEenvoudige Trigonaal
KleurZwarte
Covalentiestraal84
Dichtheid2,34
Electrical Resistivity
Electronconfiguratie[He] 2s2 2p1
Eletronen per schil2, 3
Electronegativiteit2,04
Electrons5
Groep13
Fusiewarmte50
Verdampingswarmte507
Ionisatiepotentiaal8,298
Magnetic Ordering
Magnetic Susceptibility
Massa10,811
Mass Number5
Smeltpunt2.076
NaamBoor
Neutronen6
Atoomnummer11
Oxidatietoestanden1, 2, 3
Periode2
FaseVast
Poisson Ratio
Protonen5
Shear Modulus
Specifieke Warmtecapaciteit1,026
SymboolB
Thermische geleiding0,274
Van der Waals radius
Young's Modulus
Overmaat
Overvloedig aanwezig in de aardkorst0.00086%
Overvloedig aanwezig in het universum1×10-7%
B Boor 5 10.811 13 2 p 5 2079.0 2550.0 [He] 2s2 2p1 2 3 2.34 0.00086% Black Rhombohedral 2.0 2.051 {"1":"800.6","2":"2427.1","3":"3659.7","4":"25025.8","5":"32826.7"} 801 26.7 82 3 0.98 4.6 22.6 507.8 1.026 27.0 0 Solid, Diamagnetic, Insulator, Stable, Natural, Metalloid BO-ron Hard, brittle, lustrous black semimetal. Exists in the earth's crust at an average proportion of about 10 parts per million. Used with titanium & tungsten to make heat resistant alloys for jets & rockets. Obtained from kernite, a kind of borax (Na2B4O7.10H2O). High purity boron is produced by electrolysis of molten potassium fluroborate and potassium chloride (KCl). JzqdHkpXuy4 Boron
Lawrencium was discovered by Albert Ghiorso, Torbjørn Sikkeland, Almon Larsh and Robert M. Latimer in 1961 at the University of California, Berkeley.

It was produced by the bombardment of californium with boron atoms.

Lawrencium was the last member of the actinide series to be discovered. Named after Ernest O. Lawrence, inventor of the cyclotron 5 1808 Sir Humphry Davy, Joseph Louis Gay-Lussac, and Louis Jacques Thénard England, France From the Arabic word "buraq" and the Persian word "burah"

Isotopen van lawrencium

Standard Atomic Weight

[10.806,10.821]

Stabiele isotopen

10B 11B

Instabiele isotopen

6B 7B 8B 9B 12B 13B 14B 15B 16B 17B 18B 19B

Lawrencium is harmful due to its radioactivity
Lawrencium is a trivalent ion in aqueous solution
Lawrencium is used for scientific research purposes only.