Dysprosium Element (Periodic Table)

Dysprosium

Dysprosium (Dy) is a chemical element of the periodic table, located in the period 6, and has the atomic number 66. It is the tenth element in the lanthanide series. It is a soft, lustrous, silvery-white metal, whose name comes from the Greek word “dysprositos”, which means hard to get. It is never found freely in nature and is counted as one of the rare earth elements.

group
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
period
1
1
H
2
He
2
3
Li
4
Be
5
B
6
C
7
N
8
O
9
F
10
Ne
3
11
Na
12
Mg
13
Al
14
Si
15
P
16
S
17
Cl
18
Ar
4
19
K
20
Ca
21
Sc
22
Ti
23
V
24
Cr
25
Mn
26
Fe
27
Co
28
Ni
29
Cu
30
Zn
31
Ga
32
Ge
33
As
34
Se
35
Br
36
Kr
5
37
Rb
38
Sr
39
Y
40
Zr
41
Nb
42
Mo
43
Tc
44
Ru
45
Rh
46
Pd
47
Ag
48
Cd
49
In
50
Sn
51
Sb
52
Te
53
I
54
Xe
6
55
Cs
56
Ba
72
Hf
73
Ta
74
W
75
Re
76
Os
77
Ir
78
Pt
79
Au
80
Hg
81
Tl
82
Pb
83
Bi
84
Po
85
At
86
Rn
7
87
Fr
88
Ra
104
Rf
105
Db
106
Sg
107
Bh
108
Hs
109
Mt
110
Ds
111
Rg
112
Cn
113
Nh
114
Fl
115
Mc
116
Lv
117
Ts
118
Og
57
La
58
Ce
59
Pr
60
Nd
61
Pm
62
Sm
63
Eu
64
Gd
65
Tb
66
Dy
67
Ho
68
Er
69
Tm
70
Yb
71
Lu
89
Ac
90
Th
91
Pa
92
U
93
Np
94
Pu
95
Am
96
Cm
97
Bk
98
Cf
99
Es
100
Fm
101
Md
102
No
103
Lr
– f block

FAQs on Dysprosium Element

Dysprosium
‣ What does dysprosium look like?

Appearance: silvery white
‣ Who discovered dysprosium? When was the element dysprosium discovered?

Discovery: Lecoq de Boisbaudran (1886)
First isolation: Georges Urbain (1905)
‣ Where is dysprosium found on the periodic table?

Dysprosium Periodic Table

Location: Dysprosium is found in the sixth row of the periodic table, next to the terbium element.
‣ What is dysprosium atomic mass number?

Atomic number (Z): 66
Dysprosium symbol: Dy
Dysprosium atomic weight: 162.500
‣ Which block does dysprosium belong to?

Block: f-block
‣ What period is dysprosium on the periodic table?

Period: 6
‣ What is the atomic radius of dysprosium?

Atomic radius: empirical: 178 pm
Dysprosium covalent radius: 192±7 pm
Dysprosium melting point: 1680 K (1407 °C, 2565 °F)
‣ What is the boiling point of dysprosium?

Boiling point: 2840 K (2562 °C, 4653 °F)
‣ How many electron shells does dysprosium have?

Electrons per shell: 2, 8, 18, 28, 8, 2
‣ What is the electron configuration of dysprosium?

Electron configuration: [Xe] 4f10 6s2
Dysprosium ionization energies:
1st: 573.0 kJ/mol
2nd: 1130 kJ/mol
3rd: 2200 kJ/mol
‣ Is dysprosium solid, liquid or gas at room temperature?

Phase (at r.t): solid
‣ What is the density of dysprosium?

Density (near r.t): 8.540 g/cm3
when liquid (at m.p): 8.37 g/cm3
Dysprosium magnetic ordering: paramagnetic at 300 K
Dysprosium natural occurrence: primordial
Dysprosium oxidation state: +3
‣ What’s the electronegativity of dysprosium?

Electronegativity: Pauling scale: 1.22
Dysprosium poisson’s ratio: α form: 0.247
Dysprosium heat of fusion: 11.06 kJ/mol
Dysprosium heat of vaporization: 280 kJ/mol
Dysprosium molar heat capacity: 27.7 J/(mol K)
Dysprosium molar magnetic susceptibility: +103500 × 10-6 cm3/mol (293.2 K)
Speed of sound in dysprosium: 2710 m/s (at 20 °C)
Dysprosium crystal structure: hexagonal close-packed (hcp)
Thermal expansion of dysprosium: α, poly: 9.9 µm/(m.K) (r.t)
Thermal conductivity of dysprosium: 10.7 W/(m.K)
Dysprosium electrical resistivity: α, poly: 926 nΩ.m (r.t)
‣ Dysprosium hardness

Vickers hardness: 410-550 MPa
Brinell hardness: 500-1050 MPa
Young’s modulus of dysprosium: α form: 61.4 GPa
Shear modulus of dysprosium: α form: 24.7 GPa
Bulk modulus of dysprosium: α form: 40.5 GPa
Dysprosium CAS number: 7429-91-6

‣ Dysprosium vapor pressure

Vapor pressure
P (Pa)1101001 k10 k100 k
at T (K)13781523(1704)(1954)(2304)(2831)

‣ How many isotopes does dysprosium have?

Main isotopes of dysprosium
IsotopeAbundanceHalf-life (t1/2)Decay modeProduct
154Dysyn3.0 × 106 yα150Gd
156Dy0.056 %stable
158Dy0.095 %stable
160Dy2.329 %stable
161Dy18.889 %stable
162Dy25.475 %stable
163Dy24.896 %stable
164Dy28.260 %stable

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