Itri (Y)

chemical element with symbol Y and atomic number 39

Atomic Number	39
Atomic Weight	88.90584
Rhif màs	89

Group	3
Period	5
Block	d

Proton	39 p⁺
Niwtron	50 n⁰
Electron	39 e^-

Nodwedd Ffisegol

Atomic Radius	180 pm 274 pm
molar volume	19.8 cm³/mol
covalent radius	163 pm 130 pm 124 pm 190 pm
Metallic Radius	162 pm 180 pm
ionic radius	90 pm 96 pm 101.9 pm 107.5 pm
Crystal Radius	104 pm 110 pm 115.9 pm 121.5 pm
Van der Waals radius	240 pm 232 pm 271 pm 334.5 pm
density	4.47 g/cm³ 4,240 kg/m³

Nodwedd Gemegol

{ERROR}

egni

proton affinity	967 kJ/mol
electron affinity	0.307 eV/particle
ionization energy	6.21726 eV/particle 12.224 eV/particle 20.52441 eV/particle 60.607 eV/particle 74.97 eV/particle 91.39 eV/particle 110.02 eV/particle 127 eV/particle 145.64 eV/particle 185.7 eV/particle 206 eV/particle 374.04 eV/particle 414 eV/particle 463 eV/particle 512 eV/particle 559 eV/particle 624 eV/particle 677 eV/particle 733 eV/particle 790 eV/particle 847 eV/particle 1,010 eV/particle 1,061.9 eV/particle 1,120.2 eV/particle 1,190 eV/particle 1,253 eV/particle 1,300 eV/particle 1,427.6 eV/particle 1,483.118 eV/particle 3,562.9 eV/particle 3,720 eV/particle 3,892 eV/particle 4,060 eV/particle 4,299 eV/particle 4,484 eV/particle 4,724 eV/particle 4,875.73 eV/particle 20,415.716 eV/particle 21,115.55 eV/particle

enthalpy of vaporization	367 kJ/mol
enthalpy of fusion	11.5 kJ/mol
standard enthalpy of formation	424.7 kJ/mol
Electron

plisgyn yr electron	2, 8, 18, 9, 2

valence electron	2 ⓘ

trefn yr electronnau	[Kr] 4d¹ 5s²ⓘ 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 4d¹ 5s²

Cyflwr ocsidiad	0, 1, 2, 3
Electronegatifedd	6.631 eV/particle 0.1216986 1.22
Electrophilicity Index	0.9002558378903806 eV/particle
cyflwr sylfaenol mater

cyflwr mater
gaseous state of matter
Boiling Point	3,618.15 K
Melting Point	1,795.15 K
critical pressure
critical temperature
triple point
appearance
lliw	Black #ff1493 #94ffff #94ffff
appearance	silvery white
Mynegrif plygiant
nodwedd ffisegol gwrthrych
Thermal Conductivity
thermal expansion	0.0000106 1/K
molar heat capacity	26.53 J/(mol K)
Specific Heat Capacity	0.298 J/(g⋅K)
heat capacity ratio
electrical properties
type	Conductor
dargludedd trydanol	1.8 MS/m
Gwrthedd	0.00000057 Ω*m
superconductivity	1.3 K
magnetism
type	paramagnetic
magnetic susceptibility (Mass)	0.0000000666 m³/Kg
magnetic susceptibility (Molar)	0.000000005921 m³/mol
magnetic susceptibility (Volume)	0.0002978
magnetic ordering
Curie temperature
Néel temperature
strwythur
Crystal Structure	{ERROR}
lattice constant	3.65 Å
Lattice Angles	π/2, π/2, 2 π/3
nodwedd mecanyddol deunyddiau
hardness	589 MPa
bulk modulus	41 GPa
shear modulus	26 GPa
Young's modulus	64 GPa
Poisson's ratio	0.24
speed of sound	3,300 m/s
classification
Category	Actinides, Transition metals
CAS Group	IIIA
IUPAC Group	IIIB
Glawe Number	21
Mendeleev Number	12
Pettifor Number	19
Geochemical Class	rare earth & related
Goldschmidt classification	litophile

other

Gas Basicity	945.9 kJ/mol
polarizability	162 ± 12 a₀
C6 Dispersion Coefficient	2,600 a₀
allotrope
Neutron cross section	1.28
Neutron Mass Absorption	0.00059
quantum number	2D3/2
space group	194 (P63/mmc)

Isotopes of Yttrium

Stable Isotopes	1
Unstable Isotopes	34
Natural Isotopes	1

⁷⁵Y

Rhif màs	75
neutron number	36
Relative Atomic Mass	74.96584 ± 0.000322 Da
g-factor
natural abundance
Dadfeilio ymbelydrol	☢️ elfen ymbelydrol
Hanner oes
spin	5/2
nuclear quadrupole moment
dyddiad darganfod
parity	+

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

⁷⁶Y

Rhif màs	76
neutron number	37
Relative Atomic Mass	75.958937 ± 0.000322 Da
g-factor
natural abundance
Dadfeilio ymbelydrol	☢️ elfen ymbelydrol
Hanner oes	28 ± 9 ms
spin	1
nuclear quadrupole moment
dyddiad darganfod	2001
parity	-

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

⁷⁷Y

Rhif màs	77
neutron number	38
Relative Atomic Mass	76.950146 ± 0.000218 Da
g-factor
natural abundance
Dadfeilio ymbelydrol	☢️ elfen ymbelydrol
Hanner oes	63 ± 17 ms
spin	5/2
nuclear quadrupole moment
dyddiad darganfod	1999
parity	+

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

⁷⁸Y

Rhif màs	78
neutron number	39
Relative Atomic Mass	77.94399 ± 0.00032 Da
g-factor	0
natural abundance
Dadfeilio ymbelydrol	☢️ elfen ymbelydrol
Hanner oes	54 ± 5 ms
spin	0
nuclear quadrupole moment	0
dyddiad darganfod	1992
parity	+

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

⁷⁹Y

Rhif màs	79
neutron number	40
Relative Atomic Mass	78.937946 ± 0.000086 Da
g-factor
natural abundance
Dadfeilio ymbelydrol	☢️ elfen ymbelydrol
Hanner oes	14.8 ± 0.6 s
spin	5/2
nuclear quadrupole moment
dyddiad darganfod	1992
parity	+

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

⁸⁰Y

Rhif màs	80
neutron number	41
Relative Atomic Mass	79.93435475 ± 0.000006701 Da
g-factor
natural abundance
Dadfeilio ymbelydrol	☢️ elfen ymbelydrol
Hanner oes	30.1 ± 0.5 s
spin	4
nuclear quadrupole moment
dyddiad darganfod	1981
parity	-

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

⁸¹Y

Rhif màs	81
neutron number	42
Relative Atomic Mass	80.929454283 ± 0.000005802 Da
g-factor
natural abundance
Dadfeilio ymbelydrol	☢️ elfen ymbelydrol
Hanner oes	70.4 ± 1 s
spin	5/2
nuclear quadrupole moment
dyddiad darganfod	1981
parity	+

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

⁸²Y

Rhif màs	82
neutron number	43
Relative Atomic Mass	81.926930189 ± 0.000005902 Da
g-factor
natural abundance
Dadfeilio ymbelydrol	☢️ elfen ymbelydrol
Hanner oes	8.3 ± 0.2 s
spin	1
nuclear quadrupole moment
dyddiad darganfod	1980
parity	+

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

⁸³Y

Rhif màs	83
neutron number	44
Relative Atomic Mass	82.922484026 ± 0.00002 Da
g-factor
natural abundance
Dadfeilio ymbelydrol	☢️ elfen ymbelydrol
Hanner oes	7.08 ± 0.08 m
spin	9/2
nuclear quadrupole moment
dyddiad darganfod	1962
parity	+

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

⁸⁴Y

Rhif màs	84
neutron number	45
Relative Atomic Mass	83.92067106 ± 0.000004615 Da
g-factor
natural abundance
Dadfeilio ymbelydrol	☢️ elfen ymbelydrol
Hanner oes	39.5 ± 0.8 m
spin	6
nuclear quadrupole moment
dyddiad darganfod	1962
parity	+

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

⁸⁵Y

Rhif màs	85
neutron number	46
Relative Atomic Mass	84.916433039 ± 0.00002036 Da
g-factor
natural abundance
Dadfeilio ymbelydrol	☢️ elfen ymbelydrol
Hanner oes	2.68 ± 0.05 h
spin	1/2
nuclear quadrupole moment	0
dyddiad darganfod	1952
parity

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

⁸⁶Y

Rhif màs	86
neutron number	47
Relative Atomic Mass	85.914886095 ± 0.000015182 Da
g-factor
natural abundance
Dadfeilio ymbelydrol	☢️ elfen ymbelydrol
Hanner oes	14.74 ± 0.02 h
spin	4
nuclear quadrupole moment
dyddiad darganfod	1951
parity	-

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

⁸⁷Y

Rhif màs	87
neutron number	48
Relative Atomic Mass	86.9108761 ± 0.00000121 Da
g-factor	-0.38 ± 0.04
natural abundance
Dadfeilio ymbelydrol	☢️ elfen ymbelydrol
Hanner oes	79.8 ± 0.3 h
spin	1/2
nuclear quadrupole moment	0
dyddiad darganfod	1940
parity	-

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

⁸⁸Y

Rhif màs	88
neutron number	49
Relative Atomic Mass	87.909501274 ± 0.00000161 Da
g-factor	-0.105 ± 0.0025
natural abundance
Dadfeilio ymbelydrol	☢️ elfen ymbelydrol
Hanner oes	106.629 ± 0.024 d
spin	4
nuclear quadrupole moment	0.16 ± 0.03
dyddiad darganfod	1948
parity	-

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

⁸⁹Y

Rhif màs	89
neutron number	50
Relative Atomic Mass	88.905838156 ± 0.000000363 Da
g-factor	-0.274596 ± 0.00001
natural abundance	100
Dadfeilio ymbelydrol	stable isotope
Hanner oes	Not Radioactive ☢️
spin	1/2
nuclear quadrupole moment	0
dyddiad darganfod	1923
parity	-

⁹⁰Y

Rhif màs	90
neutron number	51
Relative Atomic Mass	89.907141749 ± 0.000000379 Da
g-factor	-0.814 ± 0.004
natural abundance
Dadfeilio ymbelydrol	☢️ elfen ymbelydrol
Hanner oes	64.05 ± 0.05 h
spin	2
nuclear quadrupole moment	-0.125 ± 0.011
dyddiad darganfod	1937
parity	-

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

⁹¹Y

Rhif màs	91
neutron number	52
Relative Atomic Mass	90.907298048 ± 0.000001978 Da
g-factor	0.3278 ± 0.0016
natural abundance
Dadfeilio ymbelydrol	☢️ elfen ymbelydrol
Hanner oes	58.51 ± 0.06 d
spin	1/2
nuclear quadrupole moment	0
dyddiad darganfod	1943
parity	-

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

⁹²Y

Rhif màs	92
neutron number	53
Relative Atomic Mass	91.908945752 ± 0.000009798 Da
g-factor	-0.335 ± 0.01
natural abundance
Dadfeilio ymbelydrol	☢️ elfen ymbelydrol
Hanner oes	3.54 ± 0.01 h
spin	2
nuclear quadrupole moment	0 ± 0.02
dyddiad darganfod	1940
parity	-

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

⁹³Y

Rhif màs	93
neutron number	54
Relative Atomic Mass	92.909578434 ± 0.000011259 Da
g-factor
natural abundance
Dadfeilio ymbelydrol	☢️ elfen ymbelydrol
Hanner oes	10.18 ± 0.08 h
spin	1/2
nuclear quadrupole moment	0
dyddiad darganfod	1948
parity	-

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

⁹⁴Y

Rhif màs	94
neutron number	55
Relative Atomic Mass	93.911592062 ± 0.000006849 Da
g-factor	-0.12 ± 0.01
natural abundance
Dadfeilio ymbelydrol	☢️ elfen ymbelydrol
Hanner oes	18.7 ± 0.1 m
spin	2
nuclear quadrupole moment	-0.03 ± 0.03
dyddiad darganfod	1948
parity	-

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

⁹⁵Y

Rhif màs	95
neutron number	56
Relative Atomic Mass	94.912819697 ± 0.000007277 Da
g-factor	-0.32 ± 0.06
natural abundance
Dadfeilio ymbelydrol	☢️ elfen ymbelydrol
Hanner oes	10.3 ± 0.1 m
spin	1/2
nuclear quadrupole moment	0
dyddiad darganfod	1959
parity	-

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

⁹⁶Y

Rhif màs	96
neutron number	57
Relative Atomic Mass	95.915909305 ± 0.000006521 Da
g-factor	0
natural abundance
Dadfeilio ymbelydrol	☢️ elfen ymbelydrol
Hanner oes	5.34 ± 0.05 s
spin	0
nuclear quadrupole moment	0
dyddiad darganfod	1975
parity	-

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

⁹⁷Y

Rhif màs	97
neutron number	58
Relative Atomic Mass	96.918286702 ± 0.000007201 Da
g-factor	-0.24 ± 0.02
natural abundance
Dadfeilio ymbelydrol	☢️ elfen ymbelydrol
Hanner oes	3.75 ± 0.03 s
spin	1/2
nuclear quadrupole moment	0
dyddiad darganfod	1970
parity	-

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	0.055%

⁹⁸Y

Rhif màs	98
neutron number	59
Relative Atomic Mass	97.922394841 ± 0.000008501 Da
g-factor	0
natural abundance
Dadfeilio ymbelydrol	☢️ elfen ymbelydrol
Hanner oes	548 ± 2 ms
spin	0
nuclear quadrupole moment	0
dyddiad darganfod	1970
parity	-

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	0.33%

⁹⁹Y

Rhif màs	99
neutron number	60
Relative Atomic Mass	98.924160839 ± 0.000007101 Da
g-factor	1.272 ± 0.008
natural abundance
Dadfeilio ymbelydrol	☢️ elfen ymbelydrol
Hanner oes	1.484 ± 0.007 s
spin	5/2
nuclear quadrupole moment	1.55 ± 0.17
dyddiad darganfod	1975
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	1.77%

¹⁰⁰Y

Rhif màs	100
neutron number	61
Relative Atomic Mass	99.927727678 ± 0.000012 Da
g-factor	0.6875 ± 0.0025
natural abundance
Dadfeilio ymbelydrol	☢️ elfen ymbelydrol
Hanner oes	940 ± 30 ms
spin	4
nuclear quadrupole moment
dyddiad darganfod	1977
parity	+

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

¹⁰¹Y

Rhif màs	101
neutron number	62
Relative Atomic Mass	100.930160817 ± 0.000007601 Da
g-factor	1.288 ± 0.008
natural abundance
Dadfeilio ymbelydrol	☢️ elfen ymbelydrol
Hanner oes	426 ± 20 ms
spin	5/2
nuclear quadrupole moment	1.53 ± 0.17
dyddiad darganfod	1983
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	2.3%

¹⁰²Y

Rhif màs	102
neutron number	63
Relative Atomic Mass	101.934328471 ± 0.000004381 Da
g-factor
natural abundance
Dadfeilio ymbelydrol	☢️ elfen ymbelydrol
Hanner oes	360 ± 40 ms
spin	5
nuclear quadrupole moment
dyddiad darganfod	1980
parity	-

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	2.6%

¹⁰³Y

Rhif màs	103
neutron number	64
Relative Atomic Mass	102.937243796 ± 0.000012029 Da
g-factor
natural abundance
Dadfeilio ymbelydrol	☢️ elfen ymbelydrol
Hanner oes	239 ± 12 ms
spin	5/2
nuclear quadrupole moment
dyddiad darganfod	1994
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	8%

¹⁰⁴Y

Rhif màs	104
neutron number	65
Relative Atomic Mass	103.941943 ± 0.000215 Da
g-factor	0
natural abundance
Dadfeilio ymbelydrol	☢️ elfen ymbelydrol
Hanner oes	197 ± 4 ms
spin	0
nuclear quadrupole moment	0
dyddiad darganfod	1994
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	34%
2n (2-neutron emission)

¹⁰⁵Y

Rhif màs	105
neutron number	66
Relative Atomic Mass	104.945711 ± 0.000429 Da
g-factor
natural abundance
Dadfeilio ymbelydrol	☢️ elfen ymbelydrol
Hanner oes	95 ± 9 ms
spin	5/2
nuclear quadrupole moment
dyddiad darganfod	1994
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	82%
2n (2-neutron emission)

¹⁰⁶Y

Rhif màs	106
neutron number	67
Relative Atomic Mass	105.950842 ± 0.000537 Da
g-factor
natural abundance
Dadfeilio ymbelydrol	☢️ elfen ymbelydrol
Hanner oes	75 ± 6 ms
spin	2
nuclear quadrupole moment
dyddiad darganfod	1997
parity	+

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

¹⁰⁷Y

Rhif màs	107
neutron number	68
Relative Atomic Mass	106.954943 ± 0.000537 Da
g-factor
natural abundance
Dadfeilio ymbelydrol	☢️ elfen ymbelydrol
Hanner oes	33.5 ± 0.3 ms
spin	5/2
nuclear quadrupole moment
dyddiad darganfod	1997
parity	+

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

¹⁰⁸Y

Rhif màs	108
neutron number	69
Relative Atomic Mass	107.960515 ± 0.000644 Da
g-factor
natural abundance
Dadfeilio ymbelydrol	☢️ elfen ymbelydrol
Hanner oes	30 ± 5 ms
spin	6
nuclear quadrupole moment
dyddiad darganfod	2010
parity	-

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

¹⁰⁹Y

Rhif màs	109
neutron number	70
Relative Atomic Mass	108.965131 ± 0.000751 Da
g-factor
natural abundance
Dadfeilio ymbelydrol	☢️ elfen ymbelydrol
Hanner oes	25 ± 5 ms
spin	5/2
nuclear quadrupole moment
dyddiad darganfod	2010
parity	+

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

hanes

darganfyddwr neu ddyfeisiwr	Johann Gadolin
man darganfod	Finland
dyddiad darganfod	1789
geirdarddiad	From the Swedish village, Ytterby, where one of its minerals was first found.
ynganiad	IT-ri-em (Saesneg)

source

Abundance
Abundance in Earth's crust	33 mg/kg
natural abundance (cefnfor)	0.000013 mg/L
natural abundance (corff dynol)
natural abundance (Awyrfaen)	0.00019 %
natural abundance (Haul)	0.000001 %
Abundance in Universe	0.0000007 %

Nuclear Screening Constants

1	s	0.8244
2	p	3.9968
2	s	10.3778
3	d	13.6029
3	p	15.9075
3	s	15.4485
4	d	23.0416
4	p	26.2544
4	s	24.7364
5	s	32.744

Itri on ChemicalAid

Itri (Y)

Nodwedd Ffisegol

Nodwedd Gemegol

other

Isotopes of Yttrium

75Y

76Y

77Y

78Y

79Y

80Y

81Y

82Y

83Y

84Y

85Y

86Y

87Y

88Y

89Y

90Y

91Y

92Y

93Y

94Y

95Y

96Y

97Y

98Y

99Y

100Y

101Y

102Y

103Y

104Y

105Y

106Y

107Y

108Y

109Y

hanes

source

Nuclear Screening Constants

⁷⁵Y

⁷⁶Y

⁷⁷Y

⁷⁸Y

⁷⁹Y

⁸⁰Y

⁸¹Y

⁸²Y

⁸³Y

⁸⁴Y

⁸⁵Y

⁸⁶Y

⁸⁷Y

⁸⁸Y

⁸⁹Y

⁹⁰Y

⁹¹Y

⁹²Y

⁹³Y

⁹⁴Y

⁹⁵Y

⁹⁶Y

⁹⁷Y

⁹⁸Y

⁹⁹Y

¹⁰⁰Y

¹⁰¹Y

¹⁰²Y

¹⁰³Y

¹⁰⁴Y

¹⁰⁵Y

¹⁰⁶Y

¹⁰⁷Y

¹⁰⁸Y

¹⁰⁹Y