Eu Europium – Element Information, Facts, Properties, Trends,Uses, Comparison with other elements

63
Eu
Europium

Europium

Element 63 of Periodic table is Europium with atomic number 63, atomic weight 151.964. Europium, symbol Eu, has a Body Centered Cubic structure and Silver color. Europium is a lanthanide element. Know everything about Europium Facts, Physical Properties, Chemical Properties, Electronic configuration, Atomic and Crystal Structure.

63 Eu - Europium | SchoolMyKids

Europium is a chemical element with symbol Eu and atomic number 63. It was isolated in 1901 and is named after the continent of Europe. It is a moderately hard, silvery metal which readily oxidizes in air and water.

How to Locate Europium on Periodic Table

Periodic table is arranged by atomic number, number of protons in the nucleus which is same as number of electrons. The atomic number increases from left to right. Periodic table starts at top left ( Atomic number 1) and ends at bottom right (atomic number 118). Therefore you can directly look for atomic number 63 to find Europium on periodic table.

Another way to read periodic table and locate an element is by using group number (column) and period number (row). To locate Europium on periodic table look for cross section of group N/A and period 6 in the modern periodic table.

Table of Contents

Europium History

The element Europium was discovered by Eugène-Anatole Demarçay in year 1901 in France . Europium derived its name from Europe

Europium Presence: Abundance in Nature and Around Us

The table below shows the abundance of Europium in Universe, Sun, Meteorites, Earth's Crust, Oceans and Human Body.

  Ppb by weight (1ppb =10^-7 %)
Abundance in Universe 5×10-8%
Abundance in Sun 5×10-8%
Abundance in Meteorites 5.9×10-6%
Abundance in Earth's Crust 1.8e-06
Abundance in Oceans 1.3×10-11%
Abundance in Humans N/A

Crystal Structure of Europium

The solid state structure of Europium is Body Centered Cubic.

The Crystal structure can be described in terms of its unit Cell. The unit Cells repeats itself in three dimensional space to form the structure.

Unit Cell Parameters

The unit cell is represented in terms of its lattice parameters, which are the lengths of the cell edges Lattice Constants (a, b and c)

a b c
458.1 458.1 458.1 pm

and the angles between them Lattice Angles (alpha, beta and gamma).

alpha beta gamma
π/2 π/2 π/2

The positions of the atoms inside the unit cell are described by the set of atomic positions ( xi, yi, zi) measured from a reference lattice point.

The symmetry properties of the crystal are described by the concept of space groups. All possible symmetric arrangements of particles in three-dimensional space are described by the 230 space groups (219 distinct types, or 230 if chiral copies are considered distinct.

Space Group Name Im_ 3m 63 Eu Europium - Crystal Structure | SchoolMyKids
Space Group Number 229
Crystal Structure Body Centered Cubic

Europium Atomic and Orbital Properties

Europium atoms have 63 electrons and the electronic shell structure is [2, 8, 18, 25, 8, 2] with Atomic Term Symbol (Quantum Numbers) 8S7/2.

Atomic Number 63
Number of Electrons (with no charge) 63
Number of Protons 63
Mass Number 152
Number of Neutrons 89
Shell structure (Electrons per energy level) [2, 8, 18, 25, 8, 2]
Electron Configuration [Xe] 4f7 6s2
Valence Electrons 4f7 6s2
Oxidation State 2;3
Atomic Term Symbol (Quantum Numbers) 8S7/2

Shell Structure of Europium - Electrons per energy level

63 Eu Europium - Electron Shell Structure | SchoolMyKids
n s p d f
1 K 2
2 L 2 6
3 M 2 6 10
4 N 2 6 10 7
5 O 2 6
6 P 2

Ground State Electronic Configuration of Europium - neutral Europium atom

The ground state electronic configuration of Neutral Europium atom is [Xe] 4f7 6s2. The portion of Europium configuration that is equivalent to the noble gas of the preceding period, is abbreviated as [Xe]. For atoms with many electrons, this notation can become lengthy and so an abbreviated notation is used.This is important as it is the Valence electrons 4f7 6s2, electrons in the outermost shell that determine the chemical properties of the element.

Unabbreviated electronic configuration of neutral Europium

Complete ground state electronic configuration for the Europium atom, Unabbreviated electronic configuration

1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f7 6s2

Atomic Structure of Europium

Europium atomic radius is 231 pm, while it's covalent radius is N/A.

Atomic Radius

231 pm (2.31 Å)

Atomic Volume 28.9786422578 cm3
Covalent Radius N/A
Van der Waals Radius N/A
Neutron Cross Section 4450 σa/barns

Atomic Spectrum of Europium

Atomic Spectrum of Europium | SchoolMyKids

Europium Chemical Properties: Europium Ionization Energies and electron affinity

The electron affinity of Europium is 50 kJ/mol

Valence 3
Electronegativity N/A
ElectronAffinity 50 kJ/mol

Ionization Energy of Europium

Refer to table below for Ionization energies of Europium

Ionization energy number Enthalpy - kJ/mol
1 547.1
2 1085
3 2404
4 4120

Europium Physical Properties

Refer to below table for Europium Physical Properties

Density 5.244 g/cm3
Molar Volume 28.9786422578 cm3

Elastic Properties

Young Modulus 18 GPa
Shear Modulus 7.9 GPa
Bulk Modulus 8.3 GPa
Poisson Ratio 0.15

Hardness of Europium - Tests to Measure of Hardness of Element

Mohs Hardness N/A
Vickers Hardness 167 MPa
Brinell Hardness N/A

Europium Electrical Properties

Europium is Conductor of electricity. Refer to table below for the Electrical properties of Europium

Electrical Conductivity 1.1×106 S/m
Resistivity 9×10-7 m Ω
Superconducting Point N/A

Europium Heat and Conduction Properties

Thermal Conductivity 14 W/(m K)
Thermal Expansion 0.000035 K-1

Europium Magnetic Properties

Magnetic Type Paramagnetic
Curie Point N/A
Mass Magnetic Susceptibility 2.76×10-7
Molar Magnetic Susceptibility 4.1942×10-8
Volume Magnetic Susceptibility 0.0014473

Optical Properties of Europium

Refractive Index N/A

Acoustic Properties of Europium

Speed of Sound N/A

Europium Thermal Properties - Enthalpies and thermodynamics

Refer to table below for Thermal properties of Europium

Melting Point 1095 K (822 °C)
Boiling Point 1.8×103 K (1527 °C)
Critical Temperature N/A
Superconducting Point N/A

Enthalpies of Europium

Heat of Fusion 9.2 kJ/mol
Heat of Vaporization 175 kJ/mol
Heat of Combustion N/A

Europium Isotopes - Nuclear Properties of Europium

Isotopes of rhodium. Naturally occurring Europium has 2 stable isotope - 151Eu, 153Eu.

Isotope Isotope Mass % Abundance T half Decay Mode
130Eu  
131Eu  
132Eu  
133Eu  
134Eu  
135Eu  
136Eu  
137Eu  
138Eu  
139Eu  
140Eu  
141Eu  
142Eu  
143Eu  
144Eu  
145Eu  
146Eu  
147Eu  
148Eu  
149Eu  
150Eu  
151Eu   47.81% Stable N/A
152Eu  
153Eu   52.19% Stable N/A
154Eu  
155Eu  
156Eu  
157Eu  
158Eu  
159Eu  
160Eu  
161Eu  
162Eu  
163Eu  
164Eu  
165Eu  
166Eu  
167Eu  

Regulatory and Health - Health and Safety Parameters and Guidelines

CAS Number CAS7440-53-1
RTECS Number N/A
DOT Hazard Class N/A
DOT Numbers N/A
EU Number N/A
NFPA Fire Rating N/A
NFPA Hazards N/A
NFPA Health Rating N/A
NFPA Reactivity Rating N/A
Autoignition Point N/A
Flashpoint N/A

Database Search

List of unique identifiers to search the element in various chemical registry databases

Database Identifier number
CAS Number - Chemical Abstracts Service (CAS) CAS7440-53-1
CID Number CID23981
Gmelin Number N/A
NSC Number N/A
RTECS Number N/A

List of Elements
1 H - Hydrogen
2 He - Helium
3 Li - Lithium
4 Be - Beryllium
5 B - Boron
6 C - Carbon
7 N - Nitrogen
8 O - Oxygen
9 F - Fluorine
10 Ne - Neon
11 Na - Sodium
12 Mg - Magnesium
13 Al - Aluminium
14 Si - Silicon
15 P - Phosphorus
16 S - Sulfur
17 Cl - Chlorine
18 Ar - Argon
19 K - Potassium
20 Ca - Calcium
21 Sc - Scandium
22 Ti - Titanium
23 V - Vanadium
24 Cr - Chromium
25 Mn - Manganese
26 Fe - Iron
27 Co - Cobalt
28 Ni - Nickel
29 Cu - Copper
30 Zn - Zinc
31 Ga - Gallium
32 Ge - Germanium
33 As - Arsenic
34 Se - Selenium
35 Br - Bromine
36 Kr - Krypton
37 Rb - Rubidium
38 Sr - Strontium
39 Y - Yttrium
40 Zr - Zirconium
41 Nb - Niobium
42 Mo - Molybdenum
43 Tc - Technetium
44 Ru - Ruthenium
45 Rh - Rhodium
46 Pd - Palladium
47 Ag - Silver
48 Cd - Cadmium
49 In - Indium
50 Sn - Tin
51 Sb - Antimony
52 Te - Tellurium
53 I - Iodine
54 Xe - Xenon
55 Cs - Cesium
56 Ba - Barium
57 La - Lanthanum
58 Ce - Cerium
59 Pr - Praseodymium
60 Nd - Neodymium
61 Pm - Promethium
62 Sm - Samarium
63 Eu - Europium
64 Gd - Gadolinium
65 Tb - Terbium
66 Dy - Dysprosium
67 Ho - Holmium
68 Er - Erbium
69 Tm - Thulium
70 Yb - Ytterbium
71 Lu - Lutetium
72 Hf - Hafnium
73 Ta - Tantalum
74 W - Tungsten
75 Re - Rhenium
76 Os - Osmium
77 Ir - Iridium
78 Pt - Platinum
79 Au - Gold
80 Hg - Mercury
81 Tl - Thallium
82 Pb - Lead
83 Bi - Bismuth
84 Po - Polonium
85 At - Astatine
86 Rn - Radon
87 Fr - Francium
88 Ra - Radium
89 Ac - Actinium
90 Th - Thorium
91 Pa - Protactinium
92 U - Uranium
93 Np - Neptunium
94 Pu - Plutonium
95 Am - Americium
96 Cm - Curium
97 Bk - Berkelium
98 Cf - Californium
99 Es - Einsteinium
100 Fm - Fermium
101 Md - Mendelevium
102 No - Nobelium
103 Lr - Lawrencium
104 Rf - Rutherfordium
105 Db - Dubnium
106 Sg - Seaborgium
107 Bh - Bohrium
108 Hs - Hassium
109 Mt - Meitnerium
110 Ds - Darmstadtium
111 Rg - Roentgenium
112 Cn - Copernicium
113 Nh - Nihonium
114 Fl - Flerovium
115 Mc - Moscovium
116 Lv - Livermorium
117 Ts - Tennessine
118 Og - Oganesson
Metalloid
Nonmetals
Other Nonmetals
Halogens Noble Gas
Metals
Alkali Metals Alkaline Earth Metals
Transition Metals Post-Transition Metals
Lanthanide Actinide