Europium Element (Periodic Table)

by
Europium

Europium (Eu) is a chemical element of the periodic table, located in the period 6, and has the atomic number 63. It is the seventh element in the lanthanide series. It is a soft, silvery-white metal, which is named after Europe. It is the softest and the most reactive element in the lanthanide series 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 Europium Element

Europium
‣ What does europium look like?

Appearance: silvery white, with a pale yellow tint; but rarely seen without oxide discoloration
‣ Who discovered europium? When was the element europium discovered?

Discovery and first isolation: Eugene-Anatole Demarcay (1896, 1901)
‣ Where is europium found on the periodic table?

Europium Periodic Table

Location: Europium is found in the sixth row of the periodic table, next to the samarium element.
‣ What’s the atomic mass number for europium?

Atomic number (Z): 63
‣ Europium symbol: Eu
‣ Correct atomic weight of europium

Standard atomic weight: 151.964
‣ Which block does europium belong to?

Block: f-block
‣ What period is europium in the periodic table?

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

Atomic radius: empirical: 180 pm
‣ Europium covalent radius: 198±6 pm
‣ What is europium melting point?

Melting point: 1099 K (826 °C, 1519 °F)
‣ What is europium boiling point?

Boiling point: 1802 K (1529 °C, 2784 °F)
‣ How many electron shells does europium have?

Electrons per shell: 2, 8, 18, 25, 8, 2
‣ What is the electron configuration of europium?

Electron configuration: [Xe] 4f7 6s2
‣ Europium ionization energies:
1st: 547.1 kJ/mol
2nd: 1085 kJ/mol
3rd: 2404 kJ/mol
‣ What is the phase of europium?

Phase (at r.t): solid
‣ Europium density (near r.t): 5.264 g/cm3
when liquid (at m.p): 5.13 g/cm3
‣ Europium magnetic ordering: paramagnetic
‣ Europium natural occurrence: primordial
‣ Oxidation state of europium: +2, +3
‣ What’s the electronegativity of europium?

Electronegativity: Pauling scale: 1.2
‣ Europium poisson’s ratio: 0.152
‣ Europium heat of fusion: 9.21 kJ/mol
‣ Europium heat of vaporization: 176 kJ/mol
‣ Europium molar heat capacity: 27.66 J/(mol K)
‣ Europium molar magnetic susceptibility: +34000.0 × 10-6 cm3/mol
‣ Europium crystal structure: body-centered cubic (bcc)
‣ Thermal expansion of europium: poly: 35.0 µm/(m.K) (at r.t)
‣ Thermal conductivity of europium: est. 13.9 W/(m.K)
‣ Europium electrical resistivity: poly: 0.900 µΩ.m (at r.t)
‣ Europium hardness

Vickers hardness: 165-200 MPa
‣ Young’s modulus of europium: 18.2 GPa
‣ Shear modulus of europium: 7.9 GPa
‣ Bulk modulus of europium: 8.3 GPa
‣ Europium CAS number: 7440-53-1

‣ Europium vapor pressure

Vapor pressure
P (Pa)1101001 k10 k100 k
at T (K)8639571072123414521796

‣ How many isotopes does europium have?

Main isotopes of europium
IsotopeAbundanceHalf-life (t1/2)Decay modeProduct
150Eusyn36.9 yε150Sm
151Eu47.8 %5 × 1018 yα147Pm
152Eusyn13.54 yε
β–		152Sm
152Gd
153Eu52.2 %stable
154Eusyn8.59 yβ–154Gd
155Eusyn4.76 yβ–155Gd

.
.
.

Related:

Also Read:

Leave a Comment