Holmjum, ²Olmju (Ho)

chemical element with atomic number 67

Atomic Number	67
Atomic Weight	164.93033
mass number	165

Group
Period	6
Block	f

proton	67 p⁺
neutron	98 n⁰
elettron	67 e^-

Animated Bohr model of Ho (Holmjum, ²Olmju)

Physical Property

Atomic Radius	175 pm 273 pm
molar volume	18.7 cm³/mol
covalent radius	166 pm 133 pm 192 pm
Metallic Radius
ionic radius	90.1 pm 101.5 pm 107.2 pm 112 pm
Crystal Radius	104.1 pm 115.5 pm 121.2 pm 126 pm
Van der Waals radius	230 pm 267 pm 340.9 pm
densità	8.8 g/cm³ 8,340 kg/m³

Chemical Property

{ERROR}

enerġija

proton affinity
electron affinity
ionization energy	6.0215 eV/particle 11.8 eV/particle 22.84 eV/particle 42.5 eV/particle 63.93 eV/particle 95 eV/particle 112 eV/particle 129 eV/particle 155 eV/particle 174 eV/particle 196 eV/particle 229 eV/particle 263 eV/particle 284 eV/particle 305 eV/particle 340 eV/particle 373 eV/particle 408 eV/particle 441 eV/particle 475 eV/particle 510 eV/particle 715 eV/particle 755 eV/particle 797 eV/particle 842 eV/particle 885 eV/particle 929 eV/particle 985 eV/particle 1,029 eV/particle 1,077 eV/particle 1,122 eV/particle 1,300 eV/particle 1,346 eV/particle 1,395 eV/particle 1,443 eV/particle 1,545 eV/particle 1,598 eV/particle 1,719 eV/particle 1,773.57 eV/particle 3,018 eV/particle 3,125 eV/particle 3,238 eV/particle 3,359 eV/particle 3,476 eV/particle 3,592 eV/particle 3,760 eV/particle 3,880 eV/particle 4,009 eV/particle 4,131 eV/particle 4,469 eV/particle 4,576 eV/particle 4,693 eV/particle 4,802 eV/particle 5,135 eV/particle 5,258 eV/particle 5,494 eV/particle 5,611 eV/particle 12,495 eV/particle 12,790 eV/particle 13,116 eV/particle 13,417 eV/particle 14,639 eV/particle 14,998 eV/particle 15,448 eV/particle 15,745.77 eV/particle 63,772.42 eV/particle 65,136.8 eV/particle

enthalpy of vaporization	301 kJ/mol
enthalpy of fusion
standard enthalpy of formation	300.6 kJ/mol
elettron

electron shell	2, 8, 18, 29, 8, 2

valence electron	2 ⓘ

electron configuration	[Xe] 4f¹¹ 6s²ⓘ 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 4f¹¹ 6s²

oxidation number	0, 2, 3
electronegativity	0.207795 1.23
Electrophilicity Index
fundamental state of matter

phase of matter
gaseous state of matter
Boiling Point	2,973.15 K
Melting Point	1,745.15 K
critical pressure
critical temperature
triple point
appearance
kulur	Black #ff1493 #00ff9c #00ff9c
appearance	silvery white
refractive index
thermodynamic material property
Thermal Conductivity
thermal expansion	0.0000112 1/K
molar heat capacity	27.15 J/(mol K)
Specific Heat Capacity	0.165 J/(g⋅K)
heat capacity ratio
electrical properties
type	Conductor
electrical conductivity	1.1 MS/m
electrical resistivity	0.00000094 Ω*m
superconductivity
magnetism
type	paramagnetic
magnetic susceptibility (Mass)	0.00000549 m³/Kg
magnetic susceptibility (Molar)	0.000000905467 m³/mol
magnetic susceptibility (Volume)	0.0482845
magnetic ordering
Curie temperature	20 K
Néel temperature	132 K
structure
Crystal Structure	{ERROR}
lattice constant	3.58 Å
Lattice Angles	π/2, π/2, 2 π/3
mechanical property
hardness	746 MPa 481 MPa
bulk modulus	40 GPa
shear modulus	26 GPa
Young's modulus	65 GPa
Poisson's ratio	0.23
speed of sound	2,760 m/s
classification
Category	Actinides, Lanthanides
CAS Group
IUPAC Group
Glawe Number	23
Mendeleev Number	33
Pettifor Number	24
Geochemical Class	rare earth & related
Goldschmidt classification	litophile

other

Gas Basicity
polarizability	156 ± 10 a₀
C6 Dispersion Coefficient	2,280 a₀
allotrope
Neutron cross section	64
Neutron Mass Absorption	0.015
quantum number	4I15/2
space group	194 (P63/mmc)

Isotopes of Holmium

Stable Isotopes	1
Unstable Isotopes	38
Natural Isotopes	1

¹⁴⁰Ho

mass number	140
neutron number	73
Relative Atomic Mass	139.968526 ± 0.000537 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life	6 ± 3 ms
spin	8
nuclear quadrupole moment
time of discovery or invention	1999
parity	+

decay mode	intensity
p (proton emission)
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)
β⁺ p (β⁺-delayed proton emission)

¹⁴¹Ho

mass number	141
neutron number	74
Relative Atomic Mass	140.963108 ± 0.00043 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life	4.1 ± 0.1 ms
spin	7/2
nuclear quadrupole moment
time of discovery or invention	1998
parity	-

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

¹⁴²Ho

mass number	142
neutron number	75
Relative Atomic Mass	141.96001 ± 0.00043 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life	400 ± 100 ms
spin	7
nuclear quadrupole moment
time of discovery or invention	2001
parity	-

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%
β⁺ p (β⁺-delayed proton emission)
p (proton emission)	0%

¹⁴³Ho

mass number	143
neutron number	76
Relative Atomic Mass	142.95486 ± 0.00032 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life
spin	11/2
nuclear quadrupole moment
time of discovery or invention	2000
parity	-

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)
β⁺ p (β⁺-delayed proton emission)

¹⁴⁴Ho

mass number	144
neutron number	77
Relative Atomic Mass	143.952109712 ± 0.0000091 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life	700 ± 100 ms
spin	5
nuclear quadrupole moment
time of discovery or invention	1986
parity	-

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

¹⁴⁵Ho

mass number	145
neutron number	78
Relative Atomic Mass	144.947267392 ± 0.000008 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life	2.4 ± 0.1 s
spin	11/2
nuclear quadrupole moment
time of discovery or invention	1987
parity	-

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹⁴⁶Ho

mass number	146
neutron number	79
Relative Atomic Mass	145.944993503 ± 0.000007071 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life	3.32 ± 0.22 s
spin	6
nuclear quadrupole moment
time of discovery or invention	1982
parity	-

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

¹⁴⁷Ho

mass number	147
neutron number	80
Relative Atomic Mass	146.940142293 ± 0.000005368 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life	5.8 ± 0.4 s
spin	11/2
nuclear quadrupole moment
time of discovery or invention	1982
parity	-

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹⁴⁸Ho

mass number	148
neutron number	81
Relative Atomic Mass	147.937743925 ± 0.00009 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life	2.2 ± 1.1 s
spin	1
nuclear quadrupole moment
time of discovery or invention	1979
parity	+

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹⁴⁹Ho

mass number	149
neutron number	82
Relative Atomic Mass	148.933820457 ± 0.000012866 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life	21.1 ± 0.2 s
spin	11/2
nuclear quadrupole moment
time of discovery or invention	1979
parity	-

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹⁵⁰Ho

mass number	150
neutron number	83
Relative Atomic Mass	149.933498353 ± 0.000015209 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life	76.8 ± 1.8 s
spin	2
nuclear quadrupole moment
time of discovery or invention	1963
parity

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹⁵¹Ho

mass number	151
neutron number	84
Relative Atomic Mass	150.931698176 ± 0.000008908 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life	35.2 ± 0.1 s
spin	11/2
nuclear quadrupole moment
time of discovery or invention	1963
parity	-

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	88%
α (α emission)	22%

¹⁵²Ho

mass number	152
neutron number	85
Relative Atomic Mass	151.931717618 ± 0.000013449 Da
g-factor	-0.51 ± 0.01
natural abundance
radioactivity	☢️ radioactive element
half-life	161.8 ± 0.3 s
spin	2
nuclear quadrupole moment	0.1 ± 0.2
time of discovery or invention	1963
parity	-

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	88%
α (α emission)	12%

¹⁵³Ho

mass number	153
neutron number	86
Relative Atomic Mass	152.930206671 ± 0.000005438 Da
g-factor	1.2345454545455 ± 0.0090909090909091
natural abundance
radioactivity	☢️ radioactive element
half-life	2.01 ± 0.03 m
spin	11/2
nuclear quadrupole moment	-1.1 ± 0.5
time of discovery or invention	1963
parity	-

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	99.949%
α (α emission)	0.051%

¹⁵⁴Ho

mass number	154
neutron number	87
Relative Atomic Mass	153.930606776 ± 0.00000882 Da
g-factor	-0.3205 ± 0.003
natural abundance
radioactivity	☢️ radioactive element
half-life	11.76 ± 0.19 m
spin	2
nuclear quadrupole moment	0.19 ± 0.1
time of discovery or invention	1966
parity	-

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	99.981%
α (α emission)	0.019%

¹⁵⁵Ho

mass number	155
neutron number	88
Relative Atomic Mass	154.929103363 ± 0.000018754 Da
g-factor	1.4 ± 0.012
natural abundance
radioactivity	☢️ radioactive element
half-life	48 ± 2 m
spin	5/2
nuclear quadrupole moment	1.56 ± 0.12
time of discovery or invention	1959
parity	+

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹⁵⁶Ho

mass number	156
neutron number	89
Relative Atomic Mass	155.929641634 ± 0.000041249 Da
g-factor	0.745 ± 0.0075
natural abundance
radioactivity	☢️ radioactive element
half-life	56 ± 1 m
spin	4
nuclear quadrupole moment	2.4 ± 0.18
time of discovery or invention	1957
parity	-

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹⁵⁷Ho

mass number	157
neutron number	90
Relative Atomic Mass	156.928251974 ± 0.000025194 Da
g-factor	1.24 ± 0.0085714285714286
natural abundance
radioactivity	☢️ radioactive element
half-life	12.6 ± 0.2 m
spin	7/2
nuclear quadrupole moment	3.05 ± 0.13
time of discovery or invention	1966
parity	-

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹⁵⁸Ho

mass number	158
neutron number	91
Relative Atomic Mass	157.92894491 ± 0.000029099 Da
g-factor	0.7552 ± 0.0006
natural abundance
radioactivity	☢️ radioactive element
half-life	11.3 ± 0.4 m
spin	5
nuclear quadrupole moment	4.2 ± 0.4
time of discovery or invention	1961
parity	+

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

¹⁵⁹Ho

mass number	159
neutron number	92
Relative Atomic Mass	158.927718683 ± 0.000003268 Da
g-factor	1.22 ± 0.0085714285714286
natural abundance
radioactivity	☢️ radioactive element
half-life	33.05 ± 0.11 m
spin	7/2
nuclear quadrupole moment	3.27 ± 0.13
time of discovery or invention	1958
parity	-

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹⁶⁰Ho

mass number	160
neutron number	93
Relative Atomic Mass	159.928735538 ± 0.00001612 Da
g-factor	0.74 ± 0.006
natural abundance
radioactivity	☢️ radioactive element
half-life	25.6 ± 0.3 m
spin	5
nuclear quadrupole moment	4 ± 0.2
time of discovery or invention	1950
parity	+

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹⁶¹Ho

mass number	161
neutron number	94
Relative Atomic Mass	160.927861815 ± 0.000002309 Da
g-factor	1.2114285714286 ± 0.0085714285714286
natural abundance
radioactivity	☢️ radioactive element
half-life	2.48 ± 0.05 h
spin	7/2
nuclear quadrupole moment	3.3 ± 0.11
time of discovery or invention	1954
parity	-

decay mode	intensity
ϵ (electron capture)	100%

¹⁶²Ho

mass number	162
neutron number	95
Relative Atomic Mass	161.929102543 ± 0.00000333 Da
g-factor	2.32 ± 0.03
natural abundance
radioactivity	☢️ radioactive element
half-life	15 ± 1 m
spin	1
nuclear quadrupole moment
time of discovery or invention	1957
parity	+

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹⁶³Ho

mass number	163
neutron number	96
Relative Atomic Mass	162.92874026 ± 0.000000744 Da
g-factor	1.2057142857143 ± 0.011428571428571
natural abundance
radioactivity	☢️ radioactive element
half-life	4.57 ± 0.025 ky
spin	7/2
nuclear quadrupole moment	3.7 ± 0.6
time of discovery or invention	1957
parity	-

decay mode	intensity
ϵ (electron capture)	100%

¹⁶⁴Ho

mass number	164
neutron number	97
Relative Atomic Mass	163.930240548 ± 0.000001492 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life	28.8 ± 0.5 m
spin	1
nuclear quadrupole moment
time of discovery or invention	1938
parity	+

decay mode	intensity
ϵ (electron capture)	61%
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	39%

¹⁶⁵Ho

mass number	165
neutron number	98
Relative Atomic Mass	164.930329116 ± 0.000000844 Da
g-factor	1.1885714285714 ± 0.0085714285714286
natural abundance	100
radioactivity	stable isotope
half-life	Not Radioactive ☢️
spin	7/2
nuclear quadrupole moment	3.58 ± 0.02
time of discovery or invention	1934
parity	-

¹⁶⁶Ho

mass number	166
neutron number	99
Relative Atomic Mass	165.932291209 ± 0.000000844 Da
g-factor	0
natural abundance
radioactivity	☢️ radioactive element
half-life	26.812 ± 0.007 h
spin	0
nuclear quadrupole moment	0
time of discovery or invention	1936
parity	-

decay mode	intensity
β⁻ (β⁻ decay)	100%

¹⁶⁷Ho

mass number	167
neutron number	100
Relative Atomic Mass	166.933140254 ± 0.00000557 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life	3.1 ± 0.1 h
spin	7/2
nuclear quadrupole moment
time of discovery or invention	1955
parity	-

decay mode	intensity
β⁻ (β⁻ decay)	100%

¹⁶⁸Ho

mass number	168
neutron number	101
Relative Atomic Mass	167.935523766 ± 0.000032207 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life	2.99 ± 0.07 m
spin	3
nuclear quadrupole moment
time of discovery or invention	1960
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%

¹⁶⁹Ho

mass number	169
neutron number	102
Relative Atomic Mass	168.93687989 ± 0.000021522 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life	4.72 ± 0.1 m
spin	7/2
nuclear quadrupole moment
time of discovery or invention	1963
parity	-

decay mode	intensity
β⁻ (β⁻ decay)	100%

¹⁷⁰Ho

mass number	170
neutron number	103
Relative Atomic Mass	169.939626548 ± 0.000053697 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life	2.76 ± 0.05 m
spin	6
nuclear quadrupole moment
time of discovery or invention	1960
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%

¹⁷¹Ho

mass number	171
neutron number	104
Relative Atomic Mass	170.941472713 ± 0.000644128 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life	53 ± 2 s
spin	7/2
nuclear quadrupole moment
time of discovery or invention	1989
parity	-

decay mode	intensity
β⁻ (β⁻ decay)	100%

¹⁷²Ho

mass number	172
neutron number	105
Relative Atomic Mass	171.94473 ± 0.00021 Da
g-factor	0
natural abundance
radioactivity	☢️ radioactive element
half-life	25 ± 3 s
spin	0
nuclear quadrupole moment	0
time of discovery or invention	1991
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%

¹⁷³Ho

mass number	173
neutron number	106
Relative Atomic Mass	172.94702 ± 0.00032 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life	7.1 ± 0.4 s
spin	7/2
nuclear quadrupole moment
time of discovery or invention	2012
parity	-

decay mode	intensity
β⁻ (β⁻ decay)	100%

¹⁷⁴Ho

mass number	174
neutron number	107
Relative Atomic Mass	173.950757 ± 0.000322 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life	3.7 ± 0.4 s
spin	8
nuclear quadrupole moment
time of discovery or invention	2012
parity	-

decay mode	intensity
β⁻ (β⁻ decay)	100%

¹⁷⁵Ho

mass number	175
neutron number	108
Relative Atomic Mass	174.953516 ± 0.000429 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life	1.88 ± 0.55 s
spin	7/2
nuclear quadrupole moment
time of discovery or invention	2012
parity	-

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

¹⁷⁶Ho

mass number	176
neutron number	109
Relative Atomic Mass	175.957713 ± 0.000537 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life
spin	4
nuclear quadrupole moment
time of discovery or invention	2012
parity	+

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

¹⁷⁷Ho

mass number	177
neutron number	110
Relative Atomic Mass	176.961052 ± 0.000537 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life
spin	7/2
nuclear quadrupole moment
time of discovery or invention	2018
parity	-

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

¹⁷⁸Ho

mass number	178
neutron number	111
Relative Atomic Mass	177.965507 ± 0.000537 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life
spin	2
nuclear quadrupole moment
time of discovery or invention	2018
parity	+

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

storja

discoverer or inventor	J.L. Soret
location of discovery	Switzerland
time of discovery or invention	1878
etimoloġija	From Holmia, the Latinized name for Stockholm, Sweden.
pronunciation	HOLE-mi-em (Ingliż)

source

Abundance
Abundance in Earth's crust	1.3 mg/kg
natural abundance (ocean)	0.00000022 mg/L
natural abundance (human body)
natural abundance (meteoroid)	0.0000059 %
natural abundance (Xemx)	0 %
Abundance in Universe	0.00000005 %

Nuclear Screening Constants

1	s	1.3088
2	p	4.3332
2	s	17.5444
3	d	13.6531
3	p	20.2546
3	s	20.7649
4	d	35.3284
4	f	39.5304
4	p	32.4372
4	s	31.688
5	p	49.661
5	s	47.424
6	s	58.561

Holmjum, ²Olmju on ChemicalAid

olmju

Holmjum, ²Olmju (Ho)

Physical Property

Chemical Property

other

Isotopes of Holmium

140Ho

141Ho

142Ho

143Ho

144Ho

145Ho

146Ho

147Ho

148Ho

149Ho

150Ho

151Ho

152Ho

153Ho

154Ho

155Ho

156Ho

157Ho

158Ho

159Ho

160Ho

161Ho

162Ho

163Ho

164Ho

165Ho

166Ho

167Ho

168Ho

169Ho

170Ho

171Ho

172Ho

173Ho

174Ho

175Ho

176Ho

177Ho

178Ho

storja

source

Nuclear Screening Constants

¹⁴⁰Ho

¹⁴¹Ho

¹⁴²Ho

¹⁴³Ho

¹⁴⁴Ho

¹⁴⁵Ho

¹⁴⁶Ho

¹⁴⁷Ho

¹⁴⁸Ho

¹⁴⁹Ho

¹⁵⁰Ho

¹⁵¹Ho

¹⁵²Ho

¹⁵³Ho

¹⁵⁴Ho

¹⁵⁵Ho

¹⁵⁶Ho

¹⁵⁷Ho

¹⁵⁸Ho

¹⁵⁹Ho

¹⁶⁰Ho

¹⁶¹Ho

¹⁶²Ho

¹⁶³Ho

¹⁶⁴Ho

¹⁶⁵Ho

¹⁶⁶Ho

¹⁶⁷Ho

¹⁶⁸Ho

¹⁶⁹Ho

¹⁷⁰Ho

¹⁷¹Ho

¹⁷²Ho

¹⁷³Ho

¹⁷⁴Ho

¹⁷⁵Ho

¹⁷⁶Ho

¹⁷⁷Ho

¹⁷⁸Ho