Bors

Bors (B)

ķīmiskais elements
Atomic Number5
Atomic Weight10.81
Masas skaitlis11
Group13
Period2
Blockp
protons5 p+
neitrons6 n0
elektrons5 e-
Animated Bora atoma struktūras modelis of B (Bors)

Fizikāla Īpašība

Atoma Rādiuss
molar volume
Covalent Radius
Metallic Radius
ionic radius
Crystal Radius
Van der Waals radius
blīvums
Atomic Radii Of The Elements: Bors0102030405060708090100110120130140150160170180190200pmAtoma RādiussCovalent RadiusMetallic RadiusVan der Waals radius

Chemical Property

enerģija
proton affinity
Elektrontieksme
jonizācijas potenciāls
jonizācijas potenciāls of B (Bors)
enthalpy of vaporization
enthalpy of fusion
standard enthalpy of formation
elektrons
electron shell2, 3
Bora atoma struktūras modelis: B (Bors)
vērtības elektrons3
Lewis structure: B (Bors)
elektronu konfigurācija[He] 2s2 2p1
1s2 2s2 2p1
Enhanced Bora atoma struktūras modelis of B (Bors)
Orbital Diagram of B (Bors)
Oksidēšanas pakāpe-5, -1, 0, 1, 2, 3
elektronegativitāte
2.04
Electrophilicity Index
fundamentālais agregātstāvoklis
agregātstāvoklisSolid
gaseous state of matter
Boiling Point
Melting Point
critical pressure
critical temperature
trīskāršais punkts
appearance
krāsa
Black
appearanceblack-brown
Laušanas koeficients
thermodynamic material property
Thermal Conductivity
Termiskā izplešanās
Molārā siltumietilpība
Specific Heat Capacity
heat capacity ratio
electrical properties
typeInsulator
electrical conductivity
īpatnējā pretestība
Supravadītspēja
Magnētisms
typediamagnetic
magnetic susceptibility (Mass)
-0,0000000087 m³/Kg
magnetic susceptibility (Molar)
-0,0000000000941 m³/mol
magnetic susceptibility (Volume)
-0,0000214
magnetic ordering
Curie temperature
Néel temperature
struktūra
Crystal StructureSimple Trigonal (TET)
lattice constant
Lattice Angles1.01334, 1.01334, 1.01334
mechanical property
Cietība
tilpuma elastības modulis
shear modulus
Junga modulis
Poisson's ratio
skaņas ātrums
klasifikācija
CategoryMetalloids, Metalloids
CAS GroupIIIB
IUPAC GroupIIIA
Glawe Number86
Mendeleev Number81
Pettifor Number86
Geochemical Class
Goldschmidt classificationlitophile

other

Gas Basicity
polarizability
C6 Dispersion Coefficient
allotropeAlpha Rhombohedral Boron, Beta Rhombohedral Boron, Alpha Tetragonal Boron
Neutron cross section
760
Neutron Mass Absorption
2,4
quantum number2P1/2
space group166 (R_3m)

Isotopes of Boron

Stable Isotopes2
Unstable Isotopes14
Natural Isotopes2
Isotopic Composition1180.35%1180.35%1019.65%1019.65%

6B

Masas skaitlis6
neutron number1
Relative Atomic Mass
g-factor
natural abundance
radioaktivitāte☢️ radioactive element
Pussabrukšanas periods
spins2
nuclear quadrupole moment
atklāšanas datums
parity-

decay modeintensity
2p (2-proton emission)

7B

Masas skaitlis7
neutron number2
Relative Atomic Mass
g-factor
natural abundance
radioaktivitāte☢️ radioactive element
Pussabrukšanas periods
570 ± 14 ys
spins3/2
nuclear quadrupole moment
atklāšanas datums1967
parity-

decay modeintensity
p (proton emission)100%

8B

Masas skaitlis8
neutron number3
Relative Atomic Mass
g-factor
0,51775 ± 0,00015
natural abundance
radioaktivitāte☢️ radioactive element
Pussabrukšanas periods
771,9 ± 0,9 ms
spins2
nuclear quadrupole moment
0,0643 ± 0,0014
atklāšanas datums1950
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
β+α (β+-delayed α emission)100%

9B

Masas skaitlis9
neutron number4
Relative Atomic Mass
g-factor
natural abundance
radioaktivitāte☢️ radioactive element
Pussabrukšanas periods
800 ± 300 zs
spins3/2
nuclear quadrupole moment
atklāšanas datums1940
parity-

decay modeintensity
p (proton emission)100%

10B

Masas skaitlis10
neutron number5
Relative Atomic Mass
g-factor
0,60015453333333 ± 0,00000026666666666667
natural abundance
19,65 ± 0,44
radioaktivitātestable isotope
Pussabrukšanas periodsNot Radioactive ☢️
spins3
nuclear quadrupole moment
0,0846 ± 0,0002
atklāšanas datums1920
parity+

11B

Masas skaitlis11
neutron number6
Relative Atomic Mass
g-factor
1,792252 ± 0,00000066666666666667
natural abundance
80,35 ± 0,44
radioaktivitātestable isotope
Pussabrukšanas periodsNot Radioactive ☢️
spins3/2
nuclear quadrupole moment
0,04059 ± 0,0001
atklāšanas datums1920
parity-

12B

Masas skaitlis12
neutron number7
Relative Atomic Mass
g-factor
1,003 ± 0,001
natural abundance
radioaktivitāte☢️ radioactive element
Pussabrukšanas periods
20,2 ± 0,02 ms
spins1
nuclear quadrupole moment
0,0132 ± 0,0003
atklāšanas datums1935
parity+

decay modeintensity
β (β decay)100%
βα (β-delayed α emission)0.6%

13B

Masas skaitlis13
neutron number8
Relative Atomic Mass
g-factor
2,1185333333333 ± 0,00033333333333333
natural abundance
radioaktivitāte☢️ radioactive element
Pussabrukšanas periods
17,16 ± 0,18 ms
spins3/2
nuclear quadrupole moment
0,0365 ± 0,0008
atklāšanas datums1956
parity-

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)0.266%

14B

Masas skaitlis14
neutron number9
Relative Atomic Mass
g-factor
0,5925 ± 0,0025
natural abundance
radioaktivitāte☢️ radioactive element
Pussabrukšanas periods
12,36 ± 0,29 ms
spins2
nuclear quadrupole moment
0,0297 ± 0,0008
atklāšanas datums1966
parity-

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)6.04%
2n (2-neutron emission)

15B

Masas skaitlis15
neutron number10
Relative Atomic Mass
g-factor
1,7726666666667 ± 0,01
natural abundance
radioaktivitāte☢️ radioactive element
Pussabrukšanas periods
10,18 ± 0,35 ms
spins3/2
nuclear quadrupole moment
0,0379 ± 0,0011
atklāšanas datums1966
parity-

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)98.7%
2n (2-neutron emission)1.5%

16B

Masas skaitlis16
neutron number11
Relative Atomic Mass
g-factor
0
natural abundance
radioaktivitāte☢️ radioactive element
Pussabrukšanas periods
spins0
nuclear quadrupole moment
0
atklāšanas datums2000
parity-

decay modeintensity
n (neutron emission)

17B

Masas skaitlis17
neutron number12
Relative Atomic Mass
g-factor
1,7 ± 0,013333333333333
natural abundance
radioaktivitāte☢️ radioactive element
Pussabrukšanas periods
5,08 ± 0,05 ms
spins3/2
nuclear quadrupole moment
0,0385 ± 0,0015
atklāšanas datums1973
parity-

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)63%
2n (2-neutron emission)12%
3n (3-neutron emission)3.5%
4n0.4%

18B

Masas skaitlis18
neutron number13
Relative Atomic Mass
g-factor
natural abundance
radioaktivitāte☢️ radioactive element
Pussabrukšanas periods
spins2
nuclear quadrupole moment
atklāšanas datums2010
parity-

decay modeintensity
n (neutron emission)100%

19B

Masas skaitlis19
neutron number14
Relative Atomic Mass
g-factor
natural abundance
radioaktivitāte☢️ radioactive element
Pussabrukšanas periods
2,92 ± 0,13 ms
spins3/2
nuclear quadrupole moment
atklāšanas datums1984
parity-

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)71%
2n (2-neutron emission)17%
3n (3-neutron emission)9.1%

20B

Masas skaitlis20
neutron number15
Relative Atomic Mass
g-factor
natural abundance
radioaktivitāte☢️ radioactive element
Pussabrukšanas periods
spins1
nuclear quadrupole moment
atklāšanas datums2018
parity-

decay modeintensity
n (neutron emission)100%
β n (β-delayed neutron emission)
2n (2-neutron emission)

21B

Masas skaitlis21
neutron number16
Relative Atomic Mass
g-factor
natural abundance
radioaktivitāte☢️ radioactive element
Pussabrukšanas periods
spins3/2
nuclear quadrupole moment
atklāšanas datums2018
parity-

decay modeintensity
2n (2-neutron emission)100%
Boron
Electron shell 005 Boron

vēsture

atklājējs vai izgudrotājsSir H. Davy, J.L. Gay-Lussac, L.J. Thénard
atraduma atrašanās vietaEngland/France
atklāšanas datums1808
EtimoloģijaFrom Arabic and Persian words for borax.
izrunaBO-ron (angļu)

avots

Abundance
Abundance in Earth's crust
natural abundance (okeāns)
natural abundance (cilvēka ķermenis)
0,00007 %
natural abundance (meteoroīds)
0,00016 %
natural abundance (Saule)
0,0000002 %
Abundance in Universe
0,0000001 %

Nuclear Screening Constants

1s0.3205
2p2.5786
2s2.4238