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Gadolinium vs Zirconium

Gadolinium
Zirconium
Zirconium vs Gadolinium


Periodic Table
Symbol
Gd  
Zr  
Group Number
0  
18
4  
14
Period Number
6  
5  
Block
f block  
d block  
Element Family
Lanthanide  
Transition Metal  
CAS Number
7440542  
33
7440677  
23
Space Group Name
P63/mmc  
P63/mmc  
Space Group Number
194.00  
7
194.00  
7
Facts
Interesting Facts
  • Gadolinium is not found free in nature, hence it is not a native metal.
  • Gadolinium metal found in minerals like Monazite and Bastnaesite.
  
  • Zirconium metal can resist to weak acids.
  • Zirconium metal reacts with oxygen and nitrogen in the atmosphere.
  
Sources
Found in Minerals, Mining  
Found in Minerals, Mining, Ores of Minerals  
History
  
  
Who Discovered
Jean Charles Galissard de Marignac  
Martin Heinrich Klaproth  
Discovery
In 1880  
In 1789  
Abundance
  
  
Abundance In Universe
0.00 %  
23
0.00 %  
14
Abundance In Sun
0.00 %  
25
0.00 %  
16
Abundance In Meteorites
0.00 %  
34
0.00 %  
17
Abundance In Earth's Crust
0.00 %  
30
0.01 %  
14
Abundance In Oceans
0.00 %  
38
0.00 %  
23
Abundance In Humans
0.00 %  
24
0.00 %  
18
Uses
Uses & Benefits
  • Its alloys are also used in making Magnets, electronic components and Data storage devices.
  • Compound of Gadolinium metal are used in magnetic resonance imaging (MRI).
  
  • As this metal does not absorb neutrons; It is used in nuclear power stations.
  • Its oxide is used in ultra strong ceramics. It is also used in manufacturing Crucibles.
  
Industrial Uses
Aerospace Industry, Electrical Industry, Electronic Industry  
Aerospace Industry, Ammunition Industry  
Medical Uses
-  
-  
Other Uses
Alloys  
Alloys, Nuclear Research, Research Purposes  
Biological Properties
  
  
Toxicity
Non Toxic  
-  
Present in Human Body
No  
Yes  
In Blood
0.00 Blood/mg dm-3  
40
0.01 Blood/mg dm-3  
21
In Bone
0.00 p.p.m.  
99+
0.10 p.p.m.  
28
Physical
Melting Point
1,311.00 °C  
35
1,852.00 °C  
15
Boiling Point
3,233.00 °C  
26
4,377.00 °C  
11
Appearance
  
  
Physical State
Solid  
Solid  
Color
Silvery White  
Silvery White  
Luster
Metallic  
Lustrous  
Hardness
  
  
Mohs Hardness
4.50  
10
5.00  
8
Brinell Hardness
700.00 MPa  
17
638.00 MPa  
21
Vickers Hardness
510.00 MPa  
34
820.00 MPa  
22
Speed of Sound
2,680.00 m/s  
99+
3,800.00 m/s  
27
Optical Properties
  
  
Refractive Index
1.97  
16
2.15  
10
Reflectivity
59.00 %  
24
70.00 %  
13
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Gd  
Zr  
Isotopes
  
  
Known Isotopes
26  
13
24  
15
Electronegativity
  
  
Pauling Electronegativity
1.20  
40
1.33  
31
Sanderson Electronegativity
1.20  
32
0.90  
99+
Allred Rochow Electronegativity
1.11  
30
1.22  
27
Mulliken-Jaffe Electronegativity
1.20  
39
1.33  
32
Allen Electronegativity
1.20  
99+
1.32  
39
Electropositivity
  
  
Pauling Electropositivity
2.80  
15
2.67  
24
Ionization Energies
  
  
1st Energy Level
593.40 kJ/mol  
99+
640.10 kJ/mol  
99+
2nd Energy Level
1,170.00 kJ/mol  
99+
1,270.00 kJ/mol  
99+
3rd Energy Level
1,990.00 kJ/mol  
99+
2,218.00 kJ/mol  
99+
4th Energy Level
4,250.00 kJ/mol  
40
3,313.00 kJ/mol  
99+
5th Energy Level
5,930.00 kJ/mol  
99+
7,752.00 kJ/mol  
16
6th Energy Level
5,930.00 kJ/mol  
99+
9,500.00 kJ/mol  
21
7th Energy level
5,930.00 kJ/mol  
99+
6,400.00 kJ/mol  
99+
8th Energy Level
5,930.00 kJ/mol  
99+
6,400.00 kJ/mol  
99+
9th Energy Level
5,930.00 kJ/mol  
99+
6,400.00 kJ/mol  
40
10th Energy Level
5,930.00 kJ/mol  
99+
5,730.00 kJ/mol  
99+
11th Energy Level
5,930.00 kJ/mol  
99+
6,406.00 kJ/mol  
99+
12th Energy Level
59,300.00 kJ/mol  
17
6,400.00 kJ/mol  
99+
13th Energy Level
5,930.00 kJ/mol  
99+
6,400.00 kJ/mol  
36
14th Energy Level
5,930.00 kJ/mol  
36
640.00 kJ/mol  
99+
15th Energy Level
59,300.00 kJ/mol  
99+
64,000.00 kJ/mol  
36
16th Energy Level
59,300.00 kJ/mol  
37
64,000.00 kJ/mol  
27
17th Energy Level
594.10 kJ/mol  
99+
640.10 kJ/mol  
99+
18th Energy Level
5,930.00 kJ/mol  
99+
6,400.00 kJ/mol  
38
19th Energy Level
593.40 kJ/mol  
99+
640.00 kJ/mol  
99+
20th Energy Level
594.00 kJ/mol  
99+
640.00 kJ/mol  
39
21st Energy Level
593.40 kJ/mol  
99+
640.10 kJ/mol  
99+
22nd Energy Level
593.00 kJ/mol  
99+
640.00 kJ/mol  
33
23rd Energy Level
593.40 kJ/mol  
99+
640.10 kJ/mol  
99+
24th Energy Level
593.40 kJ/mol  
99+
640.00 kJ/mol  
35
25th Energy Level
593.00 kJ/mol  
99+
640.10 kJ/mol  
37
26th Energy Level
593.40 kJ/mol  
99+
640.10 kJ/mol  
36
27th Energy Level
593.40 kJ/mol  
99+
640.10 kJ/mol  
38
28th Energy Level
593.40 kJ/mol  
99+
640.10 kJ/mol  
99+
29th Energy Level
593.40 kJ/mol  
99+
640.10 kJ/mol  
99+
30th Energy Level
593.40 kJ/mol  
99+
640.10 kJ/mol  
39
Electrochemical Equivalent
1.96 g/amp-hr  
36
0.85 g/amp-hr  
99+
Electron Work Function
3.10 eV  
99+
4.05 eV  
34
Other Chemical Properties
Corrosion, Flammable, Ionization, Radioactive Isotopes  
Anti Corrosion, Flammable, Ionization, Radioactive Isotopes, Solubility  
Atomic
Atomic Number
64  
99+
40  
99+
Electron Configuration
[Xe] 4f7 5d1 6s2  
[Kr] 4d2 5s2  
Crystal Structure
Hexagonal Close Packed (HCP)  
Hexagonal Close Packed (HCP)  
Crystal Lattice
HCP-Crystal-Structure-of-Gadolinium.jpg#100  
HCP-Crystal-Structure-of-Zirconium.jpg#100  
Atom
  
  
Number of Protons
64  
99+
40  
99+
Number of Neutrons
93  
38
51  
99+
Number of Electrons
64  
99+
40  
99+
Radius of an Atom
  
  
Atomic Radius
180.00 pm  
16
160.00 pm  
29
Covalent Radius
196.00 pm  
14
175.00 pm  
25
Van der Waals Radius
237.00 pm  
19
200.00 pm  
35
Atomic Weight
47.87 amu  
99+
91.22 amu  
99+
Atomic Volume
19.90 cm3/mol  
32
14.10 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Europium
  
Yttrium
  
Next Element
Terbium
  
Niobium
  
Valence Electron Potential
46.10 (-eV)  
35
80.00 (-eV)  
18
Lattice Constant
363.60 pm  
35
323.20 pm  
99+
Lattice Angles
π/2, π/2, 2 π/3  
π/2, π/2, 2 π/3  
Lattice C/A Ratio
1.59  
29
1.59  
25
Mechanical
Density
  
  
Density At Room Temperature
7.90 g/cm3  
99+
6.52 g/cm3  
99+
Density When Liquid (at m.p.)
7.40 g/cm3  
99+
5.80 g/cm3  
99+
Tensile Strength
158.00 MPa  
23
330.00 MPa  
14
Viscosity
0.00  
23
0.00  
12
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
32
0.00 (Pa)  
37
Vapor Pressure at 2000 K
7.39 (Pa)  
9
0.00 (Pa)  
21
Elasticity properties
  
  
Shear Modulus
21.80 GPa  
99+
33.00 GPa  
23
Bulk Modulus
37.90 GPa  
99+
91.10 GPa  
18
Young's Modulus
54.80 GPa  
38
88.00 GPa  
24
Poisson Ratio
0.26  
23
0.34  
10
Other Mechanical Properties
Ductile, Malleable  
Ductile, Malleable  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
7.90  
99+
6.51  
99+
Magnetic Ordering
Ferromagnetic  
Paramagnetic  
Permeability
0.00 H/m  
12
0.00 H/m  
17
Susceptibility
0.00  
4
0.00  
24
Electrical Properties
  
  
Electrical Property
Conductor  
Conductor  
Resistivity
1.31 nΩ·m  
99+
421.00 nΩ·m  
11
Electrical Conductivity
0.01 106/cm Ω  
99+
0.02 106/cm Ω  
99+
Electron Affinity
50.00 kJ/mol  
26
41.10 kJ/mol  
32
Thermal
Specific Heat
0.23 J/(kg K)  
27
0.27 J/(kg K)  
19
Molar Heat Capacity
37.03 J/mol·K  
3
25.36 J/mol·K  
99+
Thermal Conductivity
10.60 W/m·K  
99+
22.60 W/m·K  
99+
Critical Temperature
1,585.00 K  
38
2,128.00 K  
17
Thermal Expansion
9.40 µm/(m·K)  
99+
5.70 µm/(m·K)  
99+
Enthalpy
  
  
Enthalpy of Vaporization
359.40 kJ/mol  
30
581.60 kJ/mol  
11
Enthalpy of Fusion
10.05 kJ/mol  
99+
20.90 kJ/mol  
11
Enthalpy of Atomization
352.00 kJ/mol  
36
598.00 kJ/mol  
12
Standard Molar Entropy
68.10 J/mol.K  
16
39.00 J/mol.K  
99+
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