BOHRIUM, Bh (107)

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ATOMIC ARCHITECTURE

Spectrograph

Elemental Tile

Bohrium

···

OVERVIEW

BOHRIUM

Bh (107)

ˈbɔːriəm

PHONETICS

IDENTIFICATION

Bohrium is a synthetic element, radioactive and with the most stable known isotope, 270Bh, having a half-life of 61 seconds. Eleven different isotopes of bohrium have been reported with atomic masses 260–262, 264–267, 270–272, 274, one of which, bohrium-262, has a known metastable state. All of these decay only through alpha decay, although some unknown bohrium isotopes are predicted to undergo spontaneous fission.

ELEMENT BRIEF

1981 by Workers at Gesellschaft für Schwerionenforschung, Germany.

DISCOVERY

From the name of Niels Bohr, Physicist.

ETYMOLOGY

Bohrium

ELEMENT

Bh

SYMBOL

107

ATOMIC NUMBER

54037-14-8

CAS NUMBER

PHYSICAL

element

ELEMENTAL SPECTRUM

-

ELEMENTAL COLOUR

-

REFRACTIVE INDEX

-

POISSON RATIO

7.335 cm³

MOLAR VOLUME

-

BRINELL HARDNESS

-

MOHS HARDNESS

-

VICKERS HARDNESS

-

SPEED OF SOUND

-

BULK MODULUS

-

SHEAR MODULUS

-

YOUNG MODULUS

ALLOTROPES

NONE

THERMODYNAMIC

-

MELTING POINT

-

BOILING POINT

-

AUTOMATIC IGNITION

-

FLASHPOINT

-

CRITICAL TEMPERATURE

-

CRITICAL PRESSURE

-

THERMAL CONDUCTIVITY

-

THERMAL EXPANSION

-

SPECIFIC HEAT

-

HEAT FUSION

-

HEAT VAPORISATION

-

HEAT COMBUSTION

-

CURIE POINT

-

NEEL POINT

-

ADIABATIC INDEX

Solid

PHASE

ELECTROMAGNETIC

-

ELECTRICAL TYPE

-

CONDUCTIVITY

-

RESISTIVITY

-

SUPERCONDUCTING POINT

-

MAGNETIC TYPE

-

MASS SUSCEPTIBILITY

-

MOLAR SUSCEPTIBILITY

-

VOLUME SUSCEPTIBILITY

STRUCTURE

Transition Metal

CLASSIFICATION

272.138'260'0

ATOMIC WEIGHT

-

ATOMIC RADIUS

141 pm

COVALENT RADIUS SINGLE BOND

128 pm

COVALENT RADIUS DOUBLE BOND

119 pm

COVALENT RADIUS TRIPLE BOND

128 pm

VAN DER WAALS RADIUS

[Rn]7s²5f¹⁴6d⁵

ELECTRON CONFIGURATION

Hexagonal, Close Packed Single

CRYSTAL STRUCTURE

37.100'00 g/cm³

DENSITY AS SOLID

-

DENSITY AS LIQUID

-

DENSITY AS GAS

-

SPACE GROUP NAME

-

SPACE GROUP NUMBER

-

LATTICE ANGLES

-

LATTICE CONSTANTS

REACTIVITY

7

VALENCE

-

ELECTRONEGATIVITY

-

ELECTRON AFFINITY

IONISATION ENERGY

element

ELEMENTAL DISTRIBUTION

-

UNIVERSE

-

METEORITES

-

SUN

-

EARTH CRUST

-

OCEANS

-

HUMANS

ISOTOPES

1.50 hour

HALF LIFE

2.17 hours

LIFETIME

6d⁵ = 6, 2, +2, +1/2

QUANTUM NUMBERS

-

NEUTRON CROSS SECTION

-

NEUTRON MASS ABSORPTION

STABLE ISOTOPES

NONE

UNSTABLE ISOTOPES

element

element

element

element

element

element

element

element

element

element

element

element

element

element

element

element

ISOTOPIC CHAIN

Isotope	Stability	Symbol	Type	Protons		Neutrons		Spin	Parity	Mass		Abundance		Mass Measure	Mass Excess		Binding Energy		Dipole Moment		Quadrupole Moment		Halflife in Years		Halflife in Seconds		A01 Decay Probability		A01 Decay Mode	A01 Decay Energy		A01 Decay Daughter	A01 Decay Link	A02 Decay Probability		A02 Decay Mode	A02 Decay Energy		A02 Decay Daughter	A02 Decay Link	A03 Decay Probability		A03 Decay Mode	A03 Decay Energy		A03 Decay Daughter	A03 Decay Link	A04 Decay Probability		A04 Decay Mode	A04 Decay Energy		A04 Decay Daughter	A04 Decay Link	A05 Decay Probability		A05 Decay Mode	A05 Decay Energy		A05 Decay Daughter	A05 Decay Link	A06 Decay Probability		A06 Decay Mode	A06 Decay Energy		A06 Decay Daughter	A06 Decay Link	Y01 Decay Product Yield		Y01 Decay Product Nuclide	Y02 Decay Product Yield		Y02 Decay Product Nuclide	Y03 Decay Product Yield		Y03 Decay Product Nuclide	Y04 Decay Product Yield		Y04 Decay Product Nuclide	Y05 Decay Product Yield		Y05 Decay Product Nuclide	Y06 Decay Product Yield		Y06 Decay Product Nuclide	Y07 Decay Product Yield		Y07 Decay Product Nuclide	Y08 Decay Product Yield		Y08 Decay Product Nuclide	Y09 Decay Product Yield		Y09 Decay Product Nuclide	Y10 Decay Product Yield		Y10 Decay Product Nuclide	Y11 Decay Product Yield		Y11 Decay Product Nuclide	Y12 Decay Product Yield		Y12 Decay Product Nuclide
Isotope_107_bh_260_u	Unstable	²⁶⁰Bh	Fermion	107	p	153	n	?	0	260.121'970'000'0	u	~ 0	%	~ 0	128.751'000'000'0	MeV	7.296'000'000'0	MeV	-		-		9.51E-12	year	300.000	micro-seconds ( x⁻⁶ )	100.000'000	%	α	10,470.000	keV	²⁵⁶Db	²⁶⁰Bh > [ 100 % , α , 10,470.0 keV ] > ²⁵⁶Db																																				0.077'560	%	²⁰⁸Pb	0.000'000	%	²⁰⁶Pb	?	%	²⁰⁰Hg
Isotope_107_bh_261_u	Unstable	²⁶¹Bh	Boson	107	p	154	n	?	0	261.121'664'000'0	u	~ 0	%	~ 0	113.614'000'000'0	MeV	7.312'000'000'0	MeV	-		-		4.12E-10	year	13.000	milli-seconds ( x⁻³ )	95.000'000	%	α	10,562.100	keV	²⁵⁷Db	²⁶¹Bh > [ 95 % , α , 10,562.1 keV ] > ²⁵⁷Db			SF	?	keV	V	²⁶¹Bh > [ , SF , ? keV ] > V																													30.801'735	%	²⁰⁵Tl	0.000'000	%	²⁰⁷Pb
Isotope_107_bh_262_u	Unstable	²⁶²Bh	Fermion	107	p	155	n	?	0	262.122'892'000'0	u	~ 0	%	~ 0	113.329'000'000'0	MeV	7.316'000'000'0	MeV	-		-		9.19E-9	year	290.000	milli-seconds ( x⁻³ )	80.000'000	%	α	10,300.000	keV	²⁵⁸Db	²⁶²Bh > [ 80 % , α , 10,300.0 keV ] > ²⁵⁸Db			SF	?	keV	V	²⁶²Bh > [ , SF , ? keV ] > V																													18.721'435	%	²⁰⁶Pb	0.000'000	%	²⁰⁵Tl	0.000'000	%	²⁰⁸Pb
Isotope_107_bh_263_u	Unstable	²⁶³Bh	Boson	107	p	156	n	?	0	263.123'035'000'0	u	~ 0	%	~ 0	114.473'000'000'0	MeV	7.315'000'000'0	MeV	-		-		6.34E-9	year	200.000	milli-seconds ( x⁻³ )	?	%	α	10,080.000	keV	²⁵⁹Db	²⁶³Bh > [ ? % , α , 10,080.0 keV ] > ²⁵⁹Db																																				?	%	²⁰⁵Tl	?	%	²⁰⁸Pb	?	%	²⁰⁷Pb	0.000'000	%	¹⁶⁰Dy	0.000'000	%	¹⁴⁰Ce	?	%	¹⁷²Yb	?	%	¹⁷⁶Hf	?	%	¹⁵²Sm	?	%	¹⁸⁰Hf	?	%	¹⁵⁶Gd	?	%	¹⁶⁸Er	?	%	¹⁶⁴Dy
Isotope_107_bh_264_u	Unstable	²⁶⁴Bh	Fermion	107	p	157	n	?	0	264.124'604'000'0	u	~ 0	%	~ 0	114.606'000'000'0	MeV	7.317'000'000'0	MeV	-		-		4.12E-8	year	1.300	seconds ( x⁰ )	?	%	α	9,967.000	keV	²⁶⁰Db	²⁶⁴Bh > [ ? % , α , 9,967.0 keV ] > ²⁶⁰Db			β+	4,262.000	keV	²⁶⁴Sg	²⁶⁴Bh > [ , β+ , 4,262.0 keV ] > ²⁶⁴Sg																													?	%	²⁰⁸Pb	?	%	²⁰⁶Pb	?	%	²⁰⁰Hg	?	%	²⁰⁶Pb
Isotope_107_bh_265_u	Unstable	²⁶⁵Bh	Boson	107	p	158	n	?	0	265.125'147'000'0	u	~ 0	%	~ 0	116.068'000'000'0	MeV	7.315'000'000'0	MeV	-		-		1.58E-8	year	500.000	milli-seconds ( x⁻³ )	?	%	α	9,770.000	keV	²⁶¹Db	²⁶⁵Bh > [ ? % , α , 9,770.0 keV ] > ²⁶¹Db																																				?	%	²⁰⁵Tl	?	%	²⁰⁷Pb
Isotope_107_bh_266_u	Unstable	²⁶⁶Bh	Fermion	107	p	159	n	?	0	266.126'942'000'0	u	~ 0	%	~ 0	116.574'000'000'0	MeV	7.316'000'000'0	MeV	-		-		1.58E-7	year	5.000	seconds ( x⁰ )	100.000'000	%	α	9,552.000	keV	²⁶²Db	²⁶⁶Bh > [ 100 % , α , 9,552.0 keV ] > ²⁶²Db			SF	?	keV	V	²⁶⁶Bh > [ , SF , ? keV ] > V	?	%	β+	3,521.000	keV	²⁶⁶Sg	²⁶⁶Bh > [ ? % , β+ , 3,521.0 keV ] > ²⁶⁶Sg																						63.678'141	%	²⁰⁶Pb	0.000'001	%	²⁰⁵Tl	0.000'000	%	²⁰⁸Pb
Isotope_107_bh_267_u	Unstable	²⁶⁷Bh	Boson	107	p	160	n	?	0	267.127'650'000'0	u	~ 0	%	~ 0	118.246'000'000'0	MeV	7.312'000'000'0	MeV	-		-		6.97E-7	year	22.000	seconds ( x⁰ )	100.000'000	%	α	9,370.000	keV	²⁶³Db	²⁶⁷Bh > [ 100 % , α , 9,370.0 keV ] > ²⁶³Db																																				30.670'964	%	²⁰⁷Pb	0.000'000	%	²⁰⁵Tl	0.000'000	%	²⁰⁶Pb	0.000'000	%	¹⁶⁰Dy	0.000'000	%	¹⁴⁰Ce	?	%	¹⁷²Yb	?	%	¹⁷⁶Hf	?	%	¹⁵²Sm	?	%	¹⁸⁰Hf	?	%	¹⁵⁶Gd	?	%	¹⁶⁸Er	?	%	¹⁶⁴Dy
Isotope_107_bh_268_u	Unstable	²⁶⁸Bh	Fermion	107	p	161	n	?	0	268.129'755'000'0	u	~ 0	%	~ 0	118.906'000'000'0	MeV	7.312'000'000'0	MeV	-		-		7.92E-7	year	25.000	seconds ( x⁰ )	?	%	α	9,080.000	keV	²⁶⁴Db	²⁶⁸Bh > [ ? % , α , 9,080.0 keV ] > ²⁶⁴Db			SF	?	keV	V	²⁶⁸Bh > [ , SF , ? keV ] > V																													?	%	²⁰⁸Pb	?	%	²⁰⁶Pb	?	%	²⁰⁰Hg	0.000'000	%	²⁰⁸Pb
Isotope_107_bh_269_u	Unstable	²⁶⁹Bh	Boson	107	p	162	n	?	0	269.130'694'000'0	u	~ 0	%	~ 0	120.866'000'000'0	MeV	7.308'000'000'0	MeV	-		-		7.92E-7	year	25.000	seconds ( x⁰ )	?	%	α	8,840.000	keV	²⁶⁵Db	²⁶⁹Bh > [ ? % , α , 8,840.0 keV ] > ²⁶⁵Db																																				?	%	²⁰⁵Tl	?	%	²⁰⁷Pb
Isotope_107_bh_270_u	Unstable	²⁷⁰Bh	Fermion	107	p	163	n	?	0	270.133'616'000'0	u	~ 0	%	~ 0	121.741'000'000'0	MeV	7.308'000'000'0	MeV	-		-		9.51E-7	year	30.000	seconds ( x⁰ )	?	%	α	9,300.000	keV	²⁶⁶Db	²⁷⁰Bh > [ ? % , α , 9,300.0 keV ] > ²⁶⁶Db			SF	?	keV	V	²⁷⁰Bh > [ , SF , ? keV ] > V																													?	%	¹⁷²Yb	?	%	²⁰⁵Tl	?	%	²⁰⁸Pb
Isotope_107_bh_271_u	Unstable	²⁷¹Bh	Boson	107	p	164	n	?	0	271.135'179'000'0	u	~ 0	%	~ 0	124.463'000'000'0	MeV	7.300'000'000'0	MeV	-		-		1.27E-6	year	40.020	seconds ( x⁰ )	?	%	α	9,500.000	keV	²⁶⁷Db	²⁷¹Bh > [ ? % , α , 9,500.0 keV ] > ²⁶⁷Db			SF	?	keV	V	²⁷¹Bh > [ , SF , ? keV ] > V																													?	%	²⁰⁵Tl	?	%	²⁰⁸Pb	?	%	²⁰⁷Pb	?	%	²⁰⁶Pb	?	%	¹⁷⁶Hf	?	%	¹⁶⁰Dy	?	%	¹⁴⁰Ce	?	%	¹⁵²Sm	?	%	¹⁸⁰Hf	?	%	¹⁵⁶Gd	?	%	¹⁶⁸Er	?	%	¹⁶⁴Dy
Isotope_107_bh_272_u	Unstable	²⁷²Bh	Fermion	107	p	165	n	?	0	272.138'032'000'0	u	~ 0	%	~ 0	125.919'000'000'0	MeV	7.298'000'000'0	MeV	-		-		3.18E-6	year	100.200	seconds ( x⁰ )	?	%	α	9,300.000	keV	²⁶⁸Db	²⁷²Bh > [ ? % , α , 9,300.0 keV ] > ²⁶⁸Db			SF	?	keV	V	²⁷²Bh > [ , SF , ? keV ] > V																													?	%	²⁰⁸Pb	?	%	²⁰⁶Pb	?	%	²⁰⁰Hg	?	%	²⁰⁶Pb
Isotope_107_bh_273_u	Unstable	²⁷³Bh	Boson	107	p	166	n	?	0	273.139'618'000'0	u	~ 0	%	~ 0	128.576'000'000'0	MeV	7.291'000'000'0	MeV	-		-		1.71E-4	year	5.400	kilo-seconds ( x³ )	?	%	α	8,900.000	keV	²⁶⁹Db	²⁷³Bh > [ ? % , α , 8,900.0 keV ] > ²⁶⁹Db			SF	?	keV	V	²⁷³Bh > [ , SF , ? keV ] > V																													?	%	²⁰⁵Tl	?	%	²⁰⁷Pb
Isotope_107_bh_274_u	Unstable	²⁷⁴Bh	Fermion	107	p	167	n	?	0	274.142'440'000'0	u	~ 0	%	~ 0	130.053'000'000'0	MeV	7.288'000'000'0	MeV	-		-		1.71E-4	year	5.400	kilo-seconds ( x³ )	?	%	α	8,500.000	keV	²⁷⁰Db	²⁷⁴Bh > [ ? % , α , 8,500.0 keV ] > ²⁷⁰Db			SF	?	keV	V	²⁷⁴Bh > [ , SF , ? keV ] > V																													?	%	¹⁷²Yb	?	%	²⁰⁵Tl	?	%	²⁰⁸Pb
Isotope_107_bh_275_u	Unstable	²⁷⁵Bh	Boson	107	p	168	n	?	0	275.144'250'000'0	u	~ 0	%	~ 0	132.682'000'000'0	MeV	7.282'000'000'0	MeV	-		-		7.61E-5	year	2.401	kilo-seconds ( x³ )																																																				?	%	²⁰⁶Pb	?	%	¹⁷⁶Hf	?	%	¹⁶⁰Dy	?	%	¹⁴⁰Ce	?	%	¹⁵²Sm	?	%	¹⁸⁰Hf	?	%	¹⁵⁶Gd	?	%	¹⁶⁸Er	?	%	¹⁶⁴Dy

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