Boroa

Boroa (B)

5 zenbaki atomikoa duen elementu kimikoa
Atomic Number5
Atomic Weight10.81
masa-zenbaki11
Group13
Period2
Blockp
protoi5 p+
neutroi6 n0
elektroi5 e-
Animated Bohrren eredu atomikoa of B (Boroa)

Propietate Fisiko

Erradio Atomiko
85 pm
bolumen molar
Erradio Kobalente
85 pm
Metallic Radius
80 pm
Erradio ioniko
1 pm
Crystal Radius
15 pm
Van der Waalsen erradio
192 pm
dentsitatea
2,34 g/cm³
Atomic Radii Of The Elements: Boroa0102030405060708090100110120130140150160170180190200pmErradio AtomikoErradio KobalenteMetallic RadiusVan der Waalsen erradio

Magnitude Fisiko

energia
proton affinity
Afinitate elektroniko
0,279723 eV/particle
ionizazio energia
8,298019 eV/particle
ionizazio energia of B (Boroa)
Irakite-entalpia
504,5 kJ/mol
urtze-entalpia
23,6 kJ/mol
formazio entalpia estandarra
565 kJ/mol
elektroi
elektroi geruza2, 3
Bohrren eredu atomikoa: B (Boroa)
balentzia-elektroi3
Lewis egitura: B (Boroa)
electron configuration[He] 2s2 2p1
1s2 2s2 2p1
Enhanced Bohrren eredu atomikoa of B (Boroa)
Orbital Diagram of B (Boroa)
Oxidazio-egoera-5, -1, 0, 1, 2, 3
Elektronegatibotasun
2.04
Electrophilicity Index
1,1470276511768214 eV/particle
materiaren funtsezko egoera
materiaren egoeraSolid
materiaren egoera gaseoso
Boiling Point
4.273,15 K
Melting Point
2.350,15 K
critical pressure
critical temperature
Puntu hirukoitz
appearance
kolore
Black
appearanceblack-brown
errefrakzio-indize
thermodynamic material property
Thermal Conductivity
27,4 W/(m K)
Bero-dilatazio
0,000006 1/K
molar heat capacity
11,087 J/(mol K)
Specific Heat Capacity
1,026 J/(g⋅K)
indize adiabatiko
electrical properties
typeInsulator
Eroankortasun elektriko
0,0000000001 MS/m
Erresistibitate elektriko
10.000 m Ω
Supereroankortasun
Magnetismo
typediamagnetic
suszeptibilitate magnetiko (Mass)
−0,0000000087 m³/Kg
suszeptibilitate magnetiko (Molar)
−0,0000000000941 m³/mol
suszeptibilitate magnetiko (Volume)
−0,0000214
magnetic ordering
Curieren tenperatura
Néel temperature
egitura
Crystal StructureSimple Trigonal (TET)
lattice constant
8,73 Å
Lattice Angles1.01334, 1.01334, 1.01334
materialen propietate mekaniko
Gogortasun
9,3 MPa
konprimagarritasun-modulu
320 GPa
Zizaila modulua
Youngen modulu
Poissonen modulu
Soinuaren lastertasun
16.200 m/s
classification
CategoryMetalloids, Metalloids
CAS GroupIIIB
IUPAC GroupIIIA
Glawe Number86
Mendeleev Number81
Pettifor Number86
Geochemical Class
Goldschmidt classificationlitophile

beste batzuk

Gas Basicity
polarizability
20,5 ± 0,1 a₀
C6 Dispersion Coefficient
99,5 a₀
allotropeAlpha Rhombohedral Boron, Beta Rhombohedral Boron, Alpha Tetragonal Boron
Neutron cross section
760
Neutron Mass Absorption
2,4
zenbaki kuantiko2P1/2
talde espazial166 (R_3m)

Isotopes of Boron

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

6B

masa-zenbaki6
neutron number1
atomo-masa erlatibo
6,0508 ± 0,00215 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
spin2
nuclear quadrupole moment
aurkikuntza-data
parity-

decay modeintensity
2p (2-proton emission)

7B

masa-zenbaki7
neutron number2
atomo-masa erlatibo
7,029712 ± 0,000027 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
570 ± 14 ys
spin3/2
nuclear quadrupole moment
aurkikuntza-data1967
parity-

decay modeintensity
p (proton emission)100%

8B

masa-zenbaki8
neutron number3
atomo-masa erlatibo
8,024607315 ± 0,000001073 Da
g-factor
0,51775 ± 0,00015
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
771,9 ± 0,9 ms
spin2
nuclear quadrupole moment
0,0643 ± 0,0014
aurkikuntza-data1950
parity+

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

9B

masa-zenbaki9
neutron number4
atomo-masa erlatibo
9,013329645 ± 0,000000969 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
800 ± 300 zs
spin3/2
nuclear quadrupole moment
aurkikuntza-data1940
parity-

decay modeintensity
p (proton emission)100%

10B

masa-zenbaki10
neutron number5
atomo-masa erlatibo
10,012936862 ± 0,000000016 Da
g-factor
0,60015453333333 ± 0,00000026666666666667
natural abundance
19,65 ± 0,44
desintegrazio erradioaktiboisotopo egonkor
Semidesintegrazio-periodoNot Radioactive ☢️
spin3
nuclear quadrupole moment
0,0846 ± 0,0002
aurkikuntza-data1920
parity+

11B

masa-zenbaki11
neutron number6
atomo-masa erlatibo
11,009305166 ± 0,000000013 Da
g-factor
1,792252 ± 0,00000066666666666667
natural abundance
80,35 ± 0,44
desintegrazio erradioaktiboisotopo egonkor
Semidesintegrazio-periodoNot Radioactive ☢️
spin3/2
nuclear quadrupole moment
0,04059 ± 0,0001
aurkikuntza-data1920
parity-

12B

masa-zenbaki12
neutron number7
atomo-masa erlatibo
12,014352638 ± 0,000001418 Da
g-factor
1,003 ± 0,001
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
20,2 ± 0,02 ms
spin1
nuclear quadrupole moment
0,0132 ± 0,0003
aurkikuntza-data1935
parity+

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

13B

masa-zenbaki13
neutron number8
atomo-masa erlatibo
13,017779981 ± 0,000001073 Da
g-factor
2,1185333333333 ± 0,00033333333333333
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
17,16 ± 0,18 ms
spin3/2
nuclear quadrupole moment
0,0365 ± 0,0008
aurkikuntza-data1956
parity-

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

14B

masa-zenbaki14
neutron number9
atomo-masa erlatibo
14,02540401 ± 0,000022773 Da
g-factor
0,5925 ± 0,0025
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
12,36 ± 0,29 ms
spin2
nuclear quadrupole moment
0,0297 ± 0,0008
aurkikuntza-data1966
parity-

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

15B

masa-zenbaki15
neutron number10
atomo-masa erlatibo
15,031087023 ± 0,000022575 Da
g-factor
1,7726666666667 ± 0,01
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
10,18 ± 0,35 ms
spin3/2
nuclear quadrupole moment
0,0379 ± 0,0011
aurkikuntza-data1966
parity-

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

16B

masa-zenbaki16
neutron number11
atomo-masa erlatibo
16,039841045 ± 0,000026373 Da
g-factor
0
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
spin0
nuclear quadrupole moment
0
aurkikuntza-data2000
parity-

decay modeintensity
n (neutron emission)

17B

masa-zenbaki17
neutron number12
atomo-masa erlatibo
17,046931399 ± 0,000219114 Da
g-factor
1,7 ± 0,013333333333333
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
5,08 ± 0,05 ms
spin3/2
nuclear quadrupole moment
0,0385 ± 0,0015
aurkikuntza-data1973
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

masa-zenbaki18
neutron number13
atomo-masa erlatibo
18,055601683 ± 0,00021918 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
spin2
nuclear quadrupole moment
aurkikuntza-data2010
parity-

decay modeintensity
n (neutron emission)100%

19B

masa-zenbaki19
neutron number14
atomo-masa erlatibo
19,064166 ± 0,000564 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
2,92 ± 0,13 ms
spin3/2
nuclear quadrupole moment
aurkikuntza-data1984
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

masa-zenbaki20
neutron number15
atomo-masa erlatibo
20,074505644 ± 0,000586538 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
spin1
nuclear quadrupole moment
aurkikuntza-data2018
parity-

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

21B

masa-zenbaki21
neutron number16
atomo-masa erlatibo
21,084147485 ± 0,00059975 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
spin3/2
nuclear quadrupole moment
aurkikuntza-data2018
parity-

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

historia

aurkitzailea edo asmatzaileaSir H. Davy, J.L. Gay-Lussac, L.J. Thénard
aurkikuntzaren lekuaEngland/France
aurkikuntza-data1808
etimologiaFrom Arabic and Persian words for borax.
pronunciationBO-ron (ingelesa)

source

Abundance
Abundance in Earth's crust
natural abundance (ozeano)
4,44 mg/L
natural abundance (gizakiaren gorputza)
0,00007 %
natural abundance (Meteoroide)
0,00016 %
natural abundance (Eguzkia)
0,0000002 %
Abundance in Universe
0,0000001 %

Nuclear Screening Constants

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