Bórón (B)

chemical element with symbol B and atomic number 5

Atomic Number	5
Atomic Weight	10.81
Núicléónuimhir	11

Group	13
Period	2
Block	p

prótón	5 p⁺
neodrón	6 n⁰
leictreon	5 e^-

Physical Property

Ga Adamhach	85 pm 205 pm
molar volume	4.6 cm³/mol
covalent radius	85 pm 78 pm 73 pm 84 pm
Metallic Radius	80 pm 98 pm
ionic radius	1 pm 11 pm 27 pm
Crystal Radius	15 pm 25 pm 41 pm
Van der Waals radius	180 pm 402 pm 192 pm 215 pm 192 pm 408.3 pm
dlús	2.34 g/cm³ 2,080 kg/m³

Chemical Property

{ERROR}

fuinneamh

proton affinity
electron affinity	0.279723 eV/particle
ionization energy	8.298019 eV/particle 25.15483 eV/particle 37.93058 eV/particle 259.3715 eV/particle 340.226008 eV/particle

enthalpy of vaporization	504.5 kJ/mol
enthalpy of fusion	23.6 kJ/mol
eantalpacht chaighdeánach an fhoirmithe	565 kJ/mol
leictreon

electron shell	2, 3

Fiúsleictreon	3 ⓘ

cumraíocht leictreon	[He] 2s² 2p¹ⓘ 1s² 2s² 2p¹

Staid ocsaídiúcháine	-5, -1, 0, 1, 2, 3
Leictridhiúltacht	12.13 eV/particle 0.184886 2.04
Electrophilicity Index	1.1470276511768214 eV/particle
fundamental state of matter

phase of matter
gaseous state of matter
Boiling Point	4,273.15 K
Melting Point	2,350.15 K
critical pressure
critical temperature
triple point
appearance
dath	Black #00ff00 #ffb5b5 #ffb5b5
appearance	black-brown
Comhéifeacht athraonta
thermodynamic material property
Thermal Conductivity	27.4 W/(m K)
Forbairt theirmeach	0.000006 1/K
molar heat capacity	11.087 J/(mol K)
Specific Heat Capacity	1.026 J/(g⋅K)
Cóimheas saintoilleadh teasa
electrical properties
type	Insulator
electrical conductivity	0.0000000001 MS/m
Friotachas	10,000 Ω*m
Forsheoltacht
Maighnéadas
type	diamagnetic
So-ghabhálacht mhaighnéadach (Mass)	-0.0000000087 m³/Kg
So-ghabhálacht mhaighnéadach (Molar)	-0.0000000000941 m³/mol
So-ghabhálacht mhaighnéadach (Volume)	-0.0000214
magnetic ordering
Teocht Curie
Néel temperature
struchtúr
Crystal Structure	{ERROR}
lattice constant	8.73 Å
Lattice Angles	1.01334, 1.01334, 1.01334
airíonna meicniúla
Cruas	9.3 MPa 49,000 MPa
Modal toirte	320 GPa
modal fiartha
modal Young
Cóimheas Poisson
luas forleata fuaime	16,200 m/s
aicmiúchán
Category	Actinides, Metalloids
CAS Group	IIIB
IUPAC Group	IIIA
Glawe Number	86
Mendeleev Number	81
Pettifor Number	86
Geochemical Class
Goldschmidt classification	litophile

eile

Gas Basicity
polarizability	20.5 ± 0.1 a₀
C6 Dispersion Coefficient	99.5 a₀ 99.2 a₀
allotrope	Alpha Rhombohedral Boron, Beta Rhombohedral Boron, Alpha Tetragonal Boron
Crosghearradh	760
Neutron Mass Absorption	2.4
Uimhir chandamach	2P1/2
space group	166 (R_3m)

Isotopes of Boron

Stable Isotopes	2
Unstable Isotopes	14
Natural Isotopes	2

⁶B

Núicléónuimhir	6
neutron number	1
Mais Adamhach Choibhneasta	6.0508 ± 0.00215 Da
G-fhachtóir
natural abundance
Meath radaighníomhach	☢️ radioactive element
leathré
Guairne	2
nuclear quadrupole moment
dáta fionnachtana nó tionscnaimh
Paireacht	-

decay mode	intensity
2p (2-proton emission)

⁷B

Núicléónuimhir	7
neutron number	2
Mais Adamhach Choibhneasta	7.029712 ± 0.000027 Da
G-fhachtóir
natural abundance
Meath radaighníomhach	☢️ radioactive element
leathré	570 ± 14 ys
Guairne	3/2
nuclear quadrupole moment
dáta fionnachtana nó tionscnaimh	1967
Paireacht	-

decay mode	intensity
p (proton emission)	100%

⁸B

Núicléónuimhir	8
neutron number	3
Mais Adamhach Choibhneasta	8.024607315 ± 0.000001073 Da
G-fhachtóir	0.51775 ± 0.00015
natural abundance
Meath radaighníomhach	☢️ radioactive element
leathré	771.9 ± 0.9 ms
Guairne	2
nuclear quadrupole moment	0.0643 ± 0.0014
dáta fionnachtana nó tionscnaimh	1950
Paireacht	+

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

⁹B

Núicléónuimhir	9
neutron number	4
Mais Adamhach Choibhneasta	9.013329645 ± 0.000000969 Da
G-fhachtóir
natural abundance
Meath radaighníomhach	☢️ radioactive element
leathré	800 ± 300 zs
Guairne	3/2
nuclear quadrupole moment
dáta fionnachtana nó tionscnaimh	1940
Paireacht	-

decay mode	intensity
p (proton emission)	100%

¹⁰B

Núicléónuimhir	10
neutron number	5
Mais Adamhach Choibhneasta	10.012936862 ± 0.000000016 Da
G-fhachtóir	0.60015453333333 ± 0.00000026666666666667
natural abundance	19.65 ± 0.44
Meath radaighníomhach	stable isotope
leathré	Not Radioactive ☢️
Guairne	3
nuclear quadrupole moment	0.0846 ± 0.0002
dáta fionnachtana nó tionscnaimh	1920
Paireacht	+

¹¹B

Núicléónuimhir	11
neutron number	6
Mais Adamhach Choibhneasta	11.009305166 ± 0.000000013 Da
G-fhachtóir	1.792252 ± 0.00000066666666666667
natural abundance	80.35 ± 0.44
Meath radaighníomhach	stable isotope
leathré	Not Radioactive ☢️
Guairne	3/2
nuclear quadrupole moment	0.04059 ± 0.0001
dáta fionnachtana nó tionscnaimh	1920
Paireacht	-

¹²B

Núicléónuimhir	12
neutron number	7
Mais Adamhach Choibhneasta	12.014352638 ± 0.000001418 Da
G-fhachtóir	1.003 ± 0.001
natural abundance
Meath radaighníomhach	☢️ radioactive element
leathré	20.2 ± 0.02 ms
Guairne	1
nuclear quadrupole moment	0.0132 ± 0.0003
dáta fionnachtana nó tionscnaimh	1935
Paireacht	+

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻α (β⁻-delayed α emission)	0.6%

¹³B

Núicléónuimhir	13
neutron number	8
Mais Adamhach Choibhneasta	13.017779981 ± 0.000001073 Da
G-fhachtóir	2.1185333333333 ± 0.00033333333333333
natural abundance
Meath radaighníomhach	☢️ radioactive element
leathré	17.16 ± 0.18 ms
Guairne	3/2
nuclear quadrupole moment	0.0365 ± 0.0008
dáta fionnachtana nó tionscnaimh	1956
Paireacht	-

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	0.266%

¹⁴B

Núicléónuimhir	14
neutron number	9
Mais Adamhach Choibhneasta	14.02540401 ± 0.000022773 Da
G-fhachtóir	0.5925 ± 0.0025
natural abundance
Meath radaighníomhach	☢️ radioactive element
leathré	12.36 ± 0.29 ms
Guairne	2
nuclear quadrupole moment	0.0297 ± 0.0008
dáta fionnachtana nó tionscnaimh	1966
Paireacht	-

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	6.04%
2n (2-neutron emission)

¹⁵B

Núicléónuimhir	15
neutron number	10
Mais Adamhach Choibhneasta	15.031087023 ± 0.000022575 Da
G-fhachtóir	1.7726666666667 ± 0.01
natural abundance
Meath radaighníomhach	☢️ radioactive element
leathré	10.18 ± 0.35 ms
Guairne	3/2
nuclear quadrupole moment	0.0379 ± 0.0011
dáta fionnachtana nó tionscnaimh	1966
Paireacht	-

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	98.7%
2n (2-neutron emission)	1.5%

¹⁶B

Núicléónuimhir	16
neutron number	11
Mais Adamhach Choibhneasta	16.039841045 ± 0.000026373 Da
G-fhachtóir	0
natural abundance
Meath radaighníomhach	☢️ radioactive element
leathré
Guairne	0
nuclear quadrupole moment	0
dáta fionnachtana nó tionscnaimh	2000
Paireacht	-

decay mode	intensity
n (neutron emission)

¹⁷B

Núicléónuimhir	17
neutron number	12
Mais Adamhach Choibhneasta	17.046931399 ± 0.000219114 Da
G-fhachtóir	1.7 ± 0.013333333333333
natural abundance
Meath radaighníomhach	☢️ radioactive element
leathré	5.08 ± 0.05 ms
Guairne	3/2
nuclear quadrupole moment	0.0385 ± 0.0015
dáta fionnachtana nó tionscnaimh	1973
Paireacht	-

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	63%
2n (2-neutron emission)	12%
3n (3-neutron emission)	3.5%
4n	0.4%

¹⁸B

Núicléónuimhir	18
neutron number	13
Mais Adamhach Choibhneasta	18.055601683 ± 0.00021918 Da
G-fhachtóir
natural abundance
Meath radaighníomhach	☢️ radioactive element
leathré
Guairne	2
nuclear quadrupole moment
dáta fionnachtana nó tionscnaimh	2010
Paireacht	-

decay mode	intensity
n (neutron emission)	100%

¹⁹B

Núicléónuimhir	19
neutron number	14
Mais Adamhach Choibhneasta	19.064166 ± 0.000564 Da
G-fhachtóir
natural abundance
Meath radaighníomhach	☢️ radioactive element
leathré	2.92 ± 0.13 ms
Guairne	3/2
nuclear quadrupole moment
dáta fionnachtana nó tionscnaimh	1984
Paireacht	-

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

²⁰B

Núicléónuimhir	20
neutron number	15
Mais Adamhach Choibhneasta	20.074505644 ± 0.000586538 Da
G-fhachtóir
natural abundance
Meath radaighníomhach	☢️ radioactive element
leathré
Guairne	1
nuclear quadrupole moment
dáta fionnachtana nó tionscnaimh	2018
Paireacht	-

decay mode	intensity
n (neutron emission)	100%
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

²¹B

Núicléónuimhir	21
neutron number	16
Mais Adamhach Choibhneasta	21.084147485 ± 0.00059975 Da
G-fhachtóir
natural abundance
Meath radaighníomhach	☢️ radioactive element
leathré
Guairne	3/2
nuclear quadrupole moment
dáta fionnachtana nó tionscnaimh	2018
Paireacht	-

decay mode	intensity
2n (2-neutron emission)	100%

stair

fionnachtaí nó aireagóir	Sir H. Davy, J.L. Gay-Lussac, L.J. Thénard
áit ar tháinig air/uirthi	England/France
dáta fionnachtana nó tionscnaimh	1808
Sanasaíocht	From Arabic and Persian words for borax.
pronunciation	BO-ron (Béarla)

foinse

Abundance
Abundance in Earth's crust	10 mg/kg
natural abundance (aigéan)	4.44 mg/L
natural abundance (corp an duine)	0.00007 %
natural abundance (dreigeoideach)	0.00016 %
natural abundance (An Ghrian)	0.0000002 %
Abundance in Universe	0.0000001 %

Nuclear Screening Constants

1	s	0.3205
2	p	2.5786
2	s	2.4238

Bórón on ChemicalAid

Bórón (B)

Physical Property

Chemical Property

eile

Isotopes of Boron

6B

7B

8B

9B

10B

11B

12B

13B

14B

15B

16B

17B

18B

19B

20B

21B

stair

foinse

Nuclear Screening Constants

⁶B

⁷B

⁸B

⁹B

¹⁰B

¹¹B

¹²B

¹³B

¹⁴B

¹⁵B

¹⁶B

¹⁷B

¹⁸B

¹⁹B

²⁰B

²¹B