Home
Compare Metals


Uranium vs Lutetium


Lutetium vs Uranium


Periodic Table

Symbol
U  
Lu  

Group Number
0  
18
3  
15

Period Number
7  
6  

Block
f block  
f block  

Element Family
Actinide  
Lanthanide  

CAS Number
7440611  
28
7439943  
99+

Space Group Name
Cmcm  
P63/mmc  

Space Group Number
63.00  
13
194.00  
7

Facts

Interesting Facts
  • Major mining countries of Uranium include Russia, Australia, Namibia, Canada and Niger and total 33% Uranium are mine in Kazakhstan.
  
  • Metal dust of Lutetium element is highly explosive.
  • Lutetium metal is corrosion resistance and acts stable in air.
  

Sources
Earth's crust, Mining, Ores of Minerals  
Found in Minerals, Mining, Ores of Minerals  

History
  
  

Who Discovered
-  
Georges Urbain and Carl Auer von Welsbach  

Discovery
In 1789  
In 1906  

Abundance
  
  

Abundance In Universe
0.00 %  
30
0.00 %  
31

Abundance In Sun
0.00 %  
26
0.00 %  
26

Abundance In Meteorites
0.00 %  
99+
0.00 %  
99+

Abundance In Earth's Crust
0.00 %  
36
0.00 %  
99+

Abundance In Oceans
0.00 %  
11
0.00 %  
99+

Abundance In Humans
0.00 %  
24
0.00 %  
24

Uses

Uses & Benefits
  • The main use of this metal include nuclear fuel which is used to generate electricity yin nuclear power stations.
  • Synthetic elements like transuranium are made from Uranium metal.
  
  • Lutetium metal is used outside research. It has commercial uses like Industrial catalyst for cracking oil refineries of hydrocarbons .
  

Industrial Uses
Ammunition Industry, Chemical Industry  
-  

Medical Uses
-  
-  

Other Uses
Alloys, Jewellery, Nuclear Reactor's Fuel, Sculptures, Statues  
Alloys  

Biological Properties
  
  

Toxicity
Toxic  
Low Toxic  

Present in Human Body
No  
No  

In Blood
0.00 Blood/mg dm-3  
37
0.00 Blood/mg dm-3  
37

In Bone
1.20 p.p.m.  
19
0.00 p.p.m.  
99+

Physical

Melting Point
1,132.00 °C  
39
1,652.00 °C  
19

Boiling Point
3,818.00 °C  
16
3,402.00 °C  
20

Appearance
  
  

Physical State
Solid  
Solid  

Color
Silvery Gray  
Silvery White  

Luster
Metallic  
Metallic  

Hardness
  
  

Mohs Hardness
6.00  
6
4.50  
10

Brinell Hardness
2,350.00 MPa  
2
893.00 MPa  
11

Vickers Hardness
1,960.00 MPa  
6
1,160.00 MPa  
14

Speed of Sound
3,155.00 m/s  
36
5,200.00 m/s  
10

Optical Properties
  
  

Refractive Index
1.38  
40
1.90  
18

Reflectivity
80.00 %  
7
60.00 %  
23

Allotropes
No  
No  

α Allotropes
-  
-  

β Allotropes
-  
-  

γ Allotropes
-  
-  

Chemical

Chemical Formula
U  
Lu  

Isotopes
  
  

Known Isotopes
25  
14
35  
4

Electronegativity
  
  

Pauling Electronegativity
1.38  
29
1.27  
35

Sanderson Electronegativity
1.38  
22
1.27  
27

Allred Rochow Electronegativity
1.22  
27
1.14  
29

Mulliken-Jaffe Electronegativity
1.38  
29
1.27  
34

Allen Electronegativity
1.38  
36
1.27  
99+

Electropositivity
  
  

Pauling Electropositivity
2.62  
26
2.73  
20

Ionization Energies
  
  

1st Energy Level
597.60 kJ/mol  
99+
523.50 kJ/mol  
99+

2nd Energy Level
1,420.00 kJ/mol  
99+
1,340.00 kJ/mol  
99+

3rd Energy Level
1,900.00 kJ/mol  
99+
2,022.30 kJ/mol  
99+

4th Energy Level
3,145.00 kJ/mol  
99+
4,370.00 kJ/mol  
38

5th Energy Level
5,976.00 kJ/mol  
99+
6,445.00 kJ/mol  
34

6th Energy Level
5,976.00 kJ/mol  
99+
5,230.00 kJ/mol  
99+

7th Energy level
5,970.00 kJ/mol  
99+
5,230.00 kJ/mol  
99+

8th Energy Level
5,976.00 kJ/mol  
99+
5,230.00 kJ/mol  
99+

9th Energy Level
5,976.00 kJ/mol  
99+
5,230.00 kJ/mol  
99+

10th Energy Level
5,976.00 kJ/mol  
99+
5,230.00 kJ/mol  
99+

11th Energy Level
5,976.00 kJ/mol  
99+
5,235.00 kJ/mol  
99+

12th Energy Level
5,970.00 kJ/mol  
99+
5,230.00 kJ/mol  
99+

13th Energy Level
5,970.00 kJ/mol  
99+
5,230.00 kJ/mol  
99+

14th Energy Level
5,970.00 kJ/mol  
34
5,230.00 kJ/mol  
99+

15th Energy Level
59,700.00 kJ/mol  
99+
52,300.00 kJ/mol  
99+

16th Energy Level
59,700.00 kJ/mol  
35
52,300.00 kJ/mol  
99+

17th Energy Level
597.60 kJ/mol  
99+
523.50 kJ/mol  
99+

18th Energy Level
5,976.00 kJ/mol  
99+
5,230.00 kJ/mol  
99+

19th Energy Level
597.60 kJ/mol  
99+
523.50 kJ/mol  
99+

20th Energy Level
597.00 kJ/mol  
99+
523.00 kJ/mol  
99+

21st Energy Level
597.60 kJ/mol  
99+
523.50 kJ/mol  
99+

22nd Energy Level
597.00 kJ/mol  
99+
523.00 kJ/mol  
99+

23rd Energy Level
597.60 kJ/mol  
99+
5,230.00 kJ/mol  
28

24th Energy Level
597.60 kJ/mol  
99+
523.50 kJ/mol  
99+

25th Energy Level
597.60 kJ/mol  
99+
523.00 kJ/mol  
99+

26th Energy Level
597.60 kJ/mol  
99+
523.50 kJ/mol  
99+

27th Energy Level
597.60 kJ/mol  
99+
523.50 kJ/mol  
99+

28th Energy Level
597.60 kJ/mol  
99+
523.50 kJ/mol  
99+

29th Energy Level
597.60 kJ/mol  
99+
523.50 kJ/mol  
99+

30th Energy Level
597.60 kJ/mol  
99+
523.00 kJ/mol  
99+

Electrochemical Equivalent
1.48 g/amp-hr  
99+
2.18 g/amp-hr  
27

Electron Work Function
3.63 eV  
99+
3.30 eV  
99+

Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity  
Anti Corrosion, Ionization, Radioactive Isotopes, Solubility  

Atomic

Atomic Number
92  
26
71  
99+

Electron Configuration
[Rn] 5f3 6d1 7s2  
[Xe] 6s2 4f14 5d1  

Crystal Structure
Orthorhombic (ORTH)  
Hexagonal Close Packed (HCP)  

Crystal Lattice
ORTH-Crystal-Structure-of-Uranium.jpg#100  
BCC-Crystal-Structure-.jpg#100  

Atom
  
  

Number of Protons
92  
26
71  
99+

Number of Neutrons
146  
14
104  
31

Number of Electrons
92  
26
71  
99+

Radius of an Atom
  
  

Atomic Radius
156.00 pm  
31
174.00 pm  
22

Covalent Radius
196.00 pm  
14
187.00 pm  
20

Van der Waals Radius
186.00 pm  
40
221.00 pm  
27

Atomic Weight
238.03 amu  
21
174.97 amu  
40

Atomic Volume
12.59 cm3/mol  
99+
17.78 cm3/mol  
99+

Adjacent Atomic Numbers
  
  

Previous Element
Ytterbium
  

Next Element
Neptunium
  
Hafnium
  

Valence Electron Potential
170.00 (-eV)  
4
50.90 (-eV)  
27

Lattice Constant
295.08 pm  
99+
350.31 pm  
99+

Lattice Angles
π/2, π/2, π/2  
π/2, π/2, 2 π/3  

Lattice C/A Ratio
1.02  
99+
1.59  
32

Mechanical

Density
  
  

Density At Room Temperature
19.10 g/cm3  
17
9.84 g/cm3  
99+

Density When Liquid (at m.p.)
17.30 g/cm3  
17
9.30 g/cm3  
99+

Tensile Strength
100.00 MPa  
28
230.00 MPa  
18

Viscosity
0.00  
21
0.00  
25

Vapor Pressure
  
  

Vapor Pressure at 1000 K
0.00 (Pa)  
37
0.00 (Pa)  
35

Vapor Pressure at 2000 K
0.01 (Pa)  
20
3.18 (Pa)  
11

Elasticity properties
  
  

Shear Modulus
111.00 GPa  
10
27.20 GPa  
33

Bulk Modulus
100.00 GPa  
16
47.60 GPa  
25

Young's Modulus
208.00 GPa  
11
68.60 GPa  
32

Poisson Ratio
0.23  
30
0.26  
21

Other Mechanical Properties
Ductile, Malleable  
-  

Magnetic

Magnetic Characteristics
  
  

Specific Gravity
18.80  
19
9.84  
99+

Magnetic Ordering
Paramagnetic  
Paramagnetic  

Permeability
0.00 H/m  
16
0.00 H/m  
9

Susceptibility
0.00  
24
0.00  
14

Electrical Properties
  
  

Electrical Property
Poor Conductor  
Conductor  

Resistivity
0.28 nΩ·m  
99+
582.00 nΩ·m  
9

Electrical Conductivity
0.04 106/cm Ω  
99+
0.02 106/cm Ω  
99+

Electron Affinity
50.60 kJ/mol  
25
50.00 kJ/mol  
26

Thermal

Specific Heat
0.12 J/(kg K)  
99+
0.15 J/(kg K)  
37

Molar Heat Capacity
27.67 J/mol·K  
18
26.86 J/mol·K  
31

Thermal Conductivity
27.50 W/m·K  
99+
16.40 W/m·K  
99+

Critical Temperature
1,405.00 K  
99+
1,925.00 K  
23

Thermal Expansion
13.90 µm/(m·K)  
30
9.90 µm/(m·K)  
99+

Enthalpy
  
  

Enthalpy of Vaporization
477.00 kJ/mol  
18
355.90 kJ/mol  
32

Enthalpy of Fusion
15.48 kJ/mol  
19
18.70 kJ/mol  
13

Enthalpy of Atomization
489.50 kJ/mol  
18
398.00 kJ/mol  
26

Standard Molar Entropy
50.20 J/mol.K  
99+
51.00 J/mol.K  
99+

Periodic Table >>
<< All

Compare Actinide Series

Actinide Series

Actinide Series

» More Actinide Series

Compare Actinide Series

» More Compare Actinide Series