Homi

Homi (Ho)

chemical element with atomic number 67
Atomic Number67
Atomic Weight164.93033
mass number165
Group
Period6
Blockf
protoni67 p+
nyutroni98 n0
elektroni67 e-
Animated Bohr model of Ho (Homi)

Physical Property

Atomic Radius
175 pm
molar volume
Covalent Radius
166 pm
Metallic Radius
ionic radius
90.1 pm
Crystal Radius
104.1 pm
Van der Waals radius
230 pm
msongamano
8.8 g/cm³
Atomic Radii Of The Elements: Homi0102030405060708090100110120130140150160170180190200210220230pmAtomic RadiusCovalent RadiusMetallic RadiusVan der Waals radius

Chemical Property

nishati
proton affinity
electron affinity
ionization energy
ionization energy of Ho (Homi)
enthalpy of vaporization
301 kJ/mol
enthalpy of fusion
standard enthalpy of formation
300.6 kJ/mol
elektroni
Mzingo elektroni2, 8, 18, 29, 8, 2
Bohr model: Ho (Homi)
valence electron2
Lewis structure: Ho (Homi)
electron configuration[Xe] 4f11 6s2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 4f11 6s2
Enhanced Bohr model of Ho (Homi)
Orbital Diagram of Ho (Homi)
oxidation number0, 2, 3
electronegativity
1.23
Electrophilicity Index
fundamental state of matter
phase of matterSolid
gaseous state of matter
Boiling Point
2,973.15 K
Melting Point
1,745.15 K
critical pressure
critical temperature
Kiwango utatu
appearance
Rangi
Silver
appearancesilvery 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
typeConductor
electrical conductivity
1.1 MS/m
electrical resistivity
0.00000094 m Ω
superconductivity
Uga sumaku
typeparamagnetic
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 StructureSimple Hexagonal (HEX)
lattice constant
3.58 Å
Lattice Anglesπ/2, π/2, 2 π/3
mechanical property
hardness
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
CategoryLanthanides, Lanthanides
CAS Group
IUPAC Group
Glawe Number23
Mendeleev Number33
Pettifor Number24
Geochemical Classrare earth & related
Goldschmidt classificationlitophile

other

Gas Basicity
polarizability
156 ± 10 a₀
C6 Dispersion Coefficient
allotrope
Neutron cross section
64
Neutron Mass Absorption
0.015
quantum number4I15/2
space group194 (P63/mmc)

Isotopes of Holmium

Stable Isotopes1
Unstable Isotopes38
Natural Isotopes1

140Ho

mass number140
neutron number73
relative atomic mass
139.968526 ± 0.000537 Da
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
6 ± 3 ms
spin8
nuclear quadrupole moment
Uvumbuzi1999
parity+

hali ya kuozaintensity
p (proton emission)
β+ (β+ decay; β+ = ϵ + e+)
β+ p (β+-delayed proton emission)

141Ho

mass number141
neutron number74
relative atomic mass
140.963108 ± 0.00043 Da
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
4.1 ± 0.1 ms
spin7/2
nuclear quadrupole moment
Uvumbuzi1998
parity-

hali ya kuozaintensity
p (proton emission)100%
β+ (β+ decay; β+ = ϵ + e+)
β+ p (β+-delayed proton emission)

142Ho

mass number142
neutron number75
relative atomic mass
141.96001 ± 0.00043 Da
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
400 ± 100 ms
spin7
nuclear quadrupole moment
Uvumbuzi2001
parity-

hali ya kuozaintensity
β+ (β+ decay; β+ = ϵ + e+)100%
β+ p (β+-delayed proton emission)
p (proton emission)0%

143Ho

mass number143
neutron number76
relative atomic mass
142.95486 ± 0.00032 Da
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
spin11/2
nuclear quadrupole moment
Uvumbuzi2000
parity-

hali ya kuozaintensity
β+ (β+ decay; β+ = ϵ + e+)
β+ p (β+-delayed proton emission)

144Ho

mass number144
neutron number77
relative atomic mass
143.952109712 ± 0.0000091 Da
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
700 ± 100 ms
spin5
nuclear quadrupole moment
Uvumbuzi1986
parity-

hali ya kuozaintensity
β+ (β+ decay; β+ = ϵ + e+)100%
β+ p (β+-delayed proton emission)

145Ho

mass number145
neutron number78
relative atomic mass
144.947267392 ± 0.000008 Da
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
2.4 ± 0.1 s
spin11/2
nuclear quadrupole moment
Uvumbuzi1987
parity-

hali ya kuozaintensity
β+ (β+ decay; β+ = ϵ + e+)100%

146Ho

mass number146
neutron number79
relative atomic mass
145.944993503 ± 0.000007071 Da
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
3.32 ± 0.22 s
spin6
nuclear quadrupole moment
Uvumbuzi1982
parity-

hali ya kuozaintensity
β+ (β+ decay; β+ = ϵ + e+)100%
β+ p (β+-delayed proton emission)

147Ho

mass number147
neutron number80
relative atomic mass
146.940142293 ± 0.000005368 Da
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
5.8 ± 0.4 s
spin11/2
nuclear quadrupole moment
Uvumbuzi1982
parity-

hali ya kuozaintensity
β+ (β+ decay; β+ = ϵ + e+)100%

148Ho

mass number148
neutron number81
relative atomic mass
147.937743925 ± 0.00009 Da
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
2.2 ± 1.1 s
spin1
nuclear quadrupole moment
Uvumbuzi1979
parity+

hali ya kuozaintensity
β+ (β+ decay; β+ = ϵ + e+)100%

149Ho

mass number149
neutron number82
relative atomic mass
148.933820457 ± 0.000012866 Da
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
21.1 ± 0.2 s
spin11/2
nuclear quadrupole moment
Uvumbuzi1979
parity-

hali ya kuozaintensity
β+ (β+ decay; β+ = ϵ + e+)100%

150Ho

mass number150
neutron number83
relative atomic mass
149.933498353 ± 0.000015209 Da
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
76.8 ± 1.8 s
spin2
nuclear quadrupole moment
Uvumbuzi1963
parity

hali ya kuozaintensity
β+ (β+ decay; β+ = ϵ + e+)100%

151Ho

mass number151
neutron number84
relative atomic mass
150.931698176 ± 0.000008908 Da
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
35.2 ± 0.1 s
spin11/2
nuclear quadrupole moment
Uvumbuzi1963
parity-

hali ya kuozaintensity
β+ (β+ decay; β+ = ϵ + e+)88%
α (α emission)22%

152Ho

mass number152
neutron number85
relative atomic mass
151.931717618 ± 0.000013449 Da
g-factor
-0.51 ± 0.01
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
161.8 ± 0.3 s
spin2
nuclear quadrupole moment
0.1 ± 0.2
Uvumbuzi1963
parity-

hali ya kuozaintensity
β+ (β+ decay; β+ = ϵ + e+)88%
α (α emission)12%

153Ho

mass number153
neutron number86
relative atomic mass
152.930206671 ± 0.000005438 Da
g-factor
1.2345454545455 ± 0.0090909090909091
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
2.01 ± 0.03 m
spin11/2
nuclear quadrupole moment
-1.1 ± 0.5
Uvumbuzi1963
parity-

hali ya kuozaintensity
β+ (β+ decay; β+ = ϵ + e+)99.949%
α (α emission)0.051%

154Ho

mass number154
neutron number87
relative atomic mass
153.930606776 ± 0.00000882 Da
g-factor
-0.3205 ± 0.003
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
11.76 ± 0.19 m
spin2
nuclear quadrupole moment
0.19 ± 0.1
Uvumbuzi1966
parity-

hali ya kuozaintensity
β+ (β+ decay; β+ = ϵ + e+)99.981%
α (α emission)0.019%

155Ho

mass number155
neutron number88
relative atomic mass
154.929103363 ± 0.000018754 Da
g-factor
1.4 ± 0.012
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
48 ± 2 m
spin5/2
nuclear quadrupole moment
1.56 ± 0.12
Uvumbuzi1959
parity+

hali ya kuozaintensity
β+ (β+ decay; β+ = ϵ + e+)100%

156Ho

mass number156
neutron number89
relative atomic mass
155.929641634 ± 0.000041249 Da
g-factor
0.745 ± 0.0075
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
56 ± 1 m
spin4
nuclear quadrupole moment
2.4 ± 0.18
Uvumbuzi1957
parity-

hali ya kuozaintensity
β+ (β+ decay; β+ = ϵ + e+)100%

157Ho

mass number157
neutron number90
relative atomic mass
156.928251974 ± 0.000025194 Da
g-factor
1.24 ± 0.0085714285714286
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
12.6 ± 0.2 m
spin7/2
nuclear quadrupole moment
3.05 ± 0.13
Uvumbuzi1966
parity-

hali ya kuozaintensity
β+ (β+ decay; β+ = ϵ + e+)100%

158Ho

mass number158
neutron number91
relative atomic mass
157.92894491 ± 0.000029099 Da
g-factor
0.7552 ± 0.0006
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
11.3 ± 0.4 m
spin5
nuclear quadrupole moment
4.2 ± 0.4
Uvumbuzi1961
parity+

hali ya kuozaintensity
β+ (β+ decay; β+ = ϵ + e+)100%
α (α emission)

159Ho

mass number159
neutron number92
relative atomic mass
158.927718683 ± 0.000003268 Da
g-factor
1.22 ± 0.0085714285714286
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
33.05 ± 0.11 m
spin7/2
nuclear quadrupole moment
3.27 ± 0.13
Uvumbuzi1958
parity-

hali ya kuozaintensity
β+ (β+ decay; β+ = ϵ + e+)100%

160Ho

mass number160
neutron number93
relative atomic mass
159.928735538 ± 0.00001612 Da
g-factor
0.74 ± 0.006
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
25.6 ± 0.3 m
spin5
nuclear quadrupole moment
4 ± 0.2
Uvumbuzi1950
parity+

hali ya kuozaintensity
β+ (β+ decay; β+ = ϵ + e+)100%

161Ho

mass number161
neutron number94
relative atomic mass
160.927861815 ± 0.000002309 Da
g-factor
1.2114285714286 ± 0.0085714285714286
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
2.48 ± 0.05 h
spin7/2
nuclear quadrupole moment
3.3 ± 0.11
Uvumbuzi1954
parity-

hali ya kuozaintensity
ϵ (electron capture)100%

162Ho

mass number162
neutron number95
relative atomic mass
161.929102543 ± 0.00000333 Da
g-factor
2.32 ± 0.03
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
15 ± 1 m
spin1
nuclear quadrupole moment
Uvumbuzi1957
parity+

hali ya kuozaintensity
β+ (β+ decay; β+ = ϵ + e+)100%

163Ho

mass number163
neutron number96
relative atomic mass
162.92874026 ± 0.000000744 Da
g-factor
1.2057142857143 ± 0.011428571428571
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
4.57 ± 0.025 ky
spin7/2
nuclear quadrupole moment
3.7 ± 0.6
Uvumbuzi1957
parity-

hali ya kuozaintensity
ϵ (electron capture)100%

164Ho

mass number164
neutron number97
relative atomic mass
163.930240548 ± 0.000001492 Da
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
28.8 ± 0.5 m
spin1
nuclear quadrupole moment
Uvumbuzi1938
parity+

hali ya kuozaintensity
ϵ (electron capture)61%
β+ (β+ decay; β+ = ϵ + e+)39%

165Ho

mass number165
neutron number98
relative atomic mass
164.930329116 ± 0.000000844 Da
g-factor
1.1885714285714 ± 0.0085714285714286
natural abundance
100
Unururifustable isotope
NusumaishaNot Radioactive ☢️
spin7/2
nuclear quadrupole moment
3.58 ± 0.02
Uvumbuzi1934
parity-

166Ho

mass number166
neutron number99
relative atomic mass
165.932291209 ± 0.000000844 Da
g-factor
0
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
26.812 ± 0.007 h
spin0
nuclear quadrupole moment
0
Uvumbuzi1936
parity-

hali ya kuozaintensity
β (β decay)100%

167Ho

mass number167
neutron number100
relative atomic mass
166.933140254 ± 0.00000557 Da
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
3.1 ± 0.1 h
spin7/2
nuclear quadrupole moment
Uvumbuzi1955
parity-

hali ya kuozaintensity
β (β decay)100%

168Ho

mass number168
neutron number101
relative atomic mass
167.935523766 ± 0.000032207 Da
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
2.99 ± 0.07 m
spin3
nuclear quadrupole moment
Uvumbuzi1960
parity+

hali ya kuozaintensity
β (β decay)100%

169Ho

mass number169
neutron number102
relative atomic mass
168.93687989 ± 0.000021522 Da
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
4.72 ± 0.1 m
spin7/2
nuclear quadrupole moment
Uvumbuzi1963
parity-

hali ya kuozaintensity
β (β decay)100%

170Ho

mass number170
neutron number103
relative atomic mass
169.939626548 ± 0.000053697 Da
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
2.76 ± 0.05 m
spin6
nuclear quadrupole moment
Uvumbuzi1960
parity+

hali ya kuozaintensity
β (β decay)100%

171Ho

mass number171
neutron number104
relative atomic mass
170.941472713 ± 0.000644128 Da
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
53 ± 2 s
spin7/2
nuclear quadrupole moment
Uvumbuzi1989
parity-

hali ya kuozaintensity
β (β decay)100%

172Ho

mass number172
neutron number105
relative atomic mass
171.94473 ± 0.00021 Da
g-factor
0
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
25 ± 3 s
spin0
nuclear quadrupole moment
0
Uvumbuzi1991
parity+

hali ya kuozaintensity
β (β decay)100%

173Ho

mass number173
neutron number106
relative atomic mass
172.94702 ± 0.00032 Da
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
7.1 ± 0.4 s
spin7/2
nuclear quadrupole moment
Uvumbuzi2012
parity-

hali ya kuozaintensity
β (β decay)100%

174Ho

mass number174
neutron number107
relative atomic mass
173.950757 ± 0.000322 Da
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
3.7 ± 0.4 s
spin8
nuclear quadrupole moment
Uvumbuzi2012
parity-

hali ya kuozaintensity
β (β decay)100%

175Ho

mass number175
neutron number108
relative atomic mass
174.953516 ± 0.000429 Da
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
1.88 ± 0.55 s
spin7/2
nuclear quadrupole moment
Uvumbuzi2012
parity-

hali ya kuozaintensity
β (β decay)100%
β n (β-delayed neutron emission)

176Ho

mass number176
neutron number109
relative atomic mass
175.957713 ± 0.000537 Da
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
spin4
nuclear quadrupole moment
Uvumbuzi2012
parity+

hali ya kuozaintensity
β (β decay)
β n (β-delayed neutron emission)

177Ho

mass number177
neutron number110
relative atomic mass
176.961052 ± 0.000537 Da
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
spin7/2
nuclear quadrupole moment
Uvumbuzi2018
parity-

hali ya kuozaintensity
β (β decay)100%
n (neutron emission)

178Ho

mass number178
neutron number111
relative atomic mass
177.965507 ± 0.000537 Da
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
spin2
nuclear quadrupole moment
Uvumbuzi2018
parity+

hali ya kuozaintensity
β (β decay)
β n (β-delayed neutron emission)
Holmium

historia

mgunduzi au mvumbuziJ.L. Soret
location of discoverySwitzerland
Uvumbuzi1878
EtimolojiaFrom Holmia, the Latinized name for Stockholm, Sweden.
pronunciationHOLE-mi-em (Kiingereza)

source

Abundance
Abundance in Earth's crust
1.3 mg/kg
natural abundance (Bahari)
0.00000022 mg/L
natural abundance (Mwili)
natural abundance (Kimondo)
0.0000059 %
natural abundance (Jua)
0 %
Abundance in Universe
0.00000005 %

Nuclear Screening Constants

1s1.3088
2p4.3332
2s17.5444
3d13.6531
3p20.2546
3s20.7649
4d35.3284
4f39.5304
4p32.4372
4s31.688
5p49.661
5s47.424
6s58.561