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Lithium Gadolinium Comparison


Gadolinium Lithium comparison


Periodic Table

Symbol
Li  
Gd  

Group Number
1  
17
0  
18

Period Number
2  
6  

Block
s block  
f block  

Element Family
Alkali  
Lanthanide  

CAS Number
7439932  
99+
7440542  
33

Space Group Name
Im_ 3m  
P63/mmc  

Space Group Number
229.00  
2
194.00  
7

Facts

Interesting Facts
  • Heat capacity of Lithium is very high.
  • Lithium inflammable and highly explosive metal, hence it has to be stored properly.
  
  • Gadolinium is not found free in nature, hence it is not a native metal.
  • Gadolinium metal found in minerals like Monazite and Bastnaesite.
  

Sources
Found in Minerals, Mining  
Found in Minerals, Mining  

History
  
  

Who Discovered
Johan August Arfwedson  
Jean Charles Galissard de Marignac  

Discovery
In 1817  
In 1880  

Abundance
  
  

Abundance In Universe
0.00 %  
19
0.00 %  
23

Abundance In Sun
0.00 %  
11
0.00 %  
25

Abundance In Meteorites
0.00 %  
22
0.00 %  
34

Abundance In Earth's Crust
0.00 %  
99+
0.00 %  
30

Abundance In Oceans
0.00 %  
15
0.00 %  
38

Abundance In Humans
0.00 %  
19
0.00 %  
24

Uses

Uses & Benefits
  • The main usage of Lithium is manufacturing rechargeable batteries for electronic equipment and gadgets.
  • it is also used in manufacturing non-rechargeable batteries.
  
  • 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).
  

Industrial Uses
Aerospace Industry, Electrical Industry, Electronic Industry  
Aerospace Industry, Electrical Industry, Electronic Industry  

Medical Uses
-  
-  

Other Uses
Alloys  
Alloys  

Biological Properties
  
  

Toxicity
-  
Non Toxic  

Present in Human Body
Yes  
No  

In Blood
0.00 Blood/mg dm-3  
27
0.00 Blood/mg dm-3  
40

In Bone
1.30 p.p.m.  
18
0.00 p.p.m.  
99+

Physical

Melting Point
180.54 °C  
99+
1,311.00 °C  
35

Boiling Point
1,347.00 °C  
99+
3,233.00 °C  
26

Appearance
  
  

Physical State
Solid  
Solid  

Color
Silvery White  
Silvery White  

Luster
-  
Metallic  

Hardness
  
  

Mohs Hardness
0.60  
23
4.50  
10

Brinell Hardness
5.00 MPa  
99+
700.00 MPa  
17

Vickers Hardness
5.30 MPa  
99+
510.00 MPa  
34

Speed of Sound
6,000.00 m/s  
6
2,680.00 m/s  
99+

Optical Properties
  
  

Refractive Index
1.35  
99+
1.97  
16

Reflectivity
95.00 %  
2
59.00 %  
24

Allotropes
No  
No  

α Allotropes
-  
-  

β Allotropes
-  
-  

γ Allotropes
-  
-  

Chemical

Chemical Formula
Li  
Gd  

Isotopes
  
  

Known Isotopes
8  
30
26  
13

Electronegativity
  
  

Pauling Electronegativity
0.98  
99+
1.20  
40

Sanderson Electronegativity
0.89  
99+
1.20  
32

Allred Rochow Electronegativity
0.97  
39
1.11  
30

Mulliken-Jaffe Electronegativity
0.97  
99+
1.20  
39

Allen Electronegativity
0.91  
99+
1.20  
99+

Electropositivity
  
  

Pauling Electropositivity
3.02  
8
2.80  
15

Ionization Energies
  
  

1st Energy Level
520.20 kJ/mol  
99+
593.40 kJ/mol  
99+

2nd Energy Level
7,298.10 kJ/mol  
3
1,170.00 kJ/mol  
99+

3rd Energy Level
11,815.00 kJ/mol  
4
1,990.00 kJ/mol  
99+

4th Energy Level
520.20 kJ/mol  
99+
4,250.00 kJ/mol  
40

5th Energy Level
5,200.00 kJ/mol  
99+
5,930.00 kJ/mol  
99+

6th Energy Level
5,200.00 kJ/mol  
99+
5,930.00 kJ/mol  
99+

7th Energy level
5,202.00 kJ/mol  
99+
5,930.00 kJ/mol  
99+

8th Energy Level
730.00 kJ/mol  
99+
5,930.00 kJ/mol  
99+

9th Energy Level
5,200.00 kJ/mol  
99+
5,930.00 kJ/mol  
99+

10th Energy Level
520.00 kJ/mol  
99+
5,930.00 kJ/mol  
99+

11th Energy Level
5,202.00 kJ/mol  
99+
5,930.00 kJ/mol  
99+

12th Energy Level
5,200.00 kJ/mol  
99+
59,300.00 kJ/mol  
17

13th Energy Level
5,200.00 kJ/mol  
99+
5,930.00 kJ/mol  
99+

14th Energy Level
520.20 kJ/mol  
99+
5,930.00 kJ/mol  
36

15th Energy Level
52,000.00 kJ/mol  
99+
59,300.00 kJ/mol  
99+

16th Energy Level
52,000.00 kJ/mol  
99+
59,300.00 kJ/mol  
37

17th Energy Level
520.20 kJ/mol  
99+
594.10 kJ/mol  
99+

18th Energy Level
520.00 kJ/mol  
99+
5,930.00 kJ/mol  
99+

19th Energy Level
520.20 kJ/mol  
99+
593.40 kJ/mol  
99+

20th Energy Level
520.00 kJ/mol  
99+
594.00 kJ/mol  
99+

21st Energy Level
520.20 kJ/mol  
99+
593.40 kJ/mol  
99+

22nd Energy Level
520.00 kJ/mol  
99+
593.00 kJ/mol  
99+

23rd Energy Level
520.20 kJ/mol  
99+
593.40 kJ/mol  
99+

24th Energy Level
520.20 kJ/mol  
99+
593.40 kJ/mol  
99+

25th Energy Level
520.00 kJ/mol  
99+
593.00 kJ/mol  
99+

26th Energy Level
520.20 kJ/mol  
99+
593.40 kJ/mol  
99+

27th Energy Level
520.20 kJ/mol  
99+
593.40 kJ/mol  
99+

28th Energy Level
520.20 kJ/mol  
99+
593.40 kJ/mol  
99+

29th Energy Level
520.20 kJ/mol  
99+
593.40 kJ/mol  
99+

30th Energy Level
520.00 kJ/mol  
99+
593.40 kJ/mol  
99+

Electrochemical Equivalent
0.26 g/amp-hr  
99+
1.96 g/amp-hr  
36

Electron Work Function
2.90 eV  
99+
3.10 eV  
99+

Other Chemical Properties
Corrosion, Flammable, Ionization, Radioactive Isotopes  
Corrosion, Flammable, Ionization, Radioactive Isotopes  

Atomic

Atomic Number
3  
99+
64  
99+

Electron Configuration
[He] 2s1  
[Xe] 4f7 5d1 6s2  

Crystal Structure
Body Centered Cubic (BCC)  
Hexagonal Close Packed (HCP)  

Crystal Lattice
BCC-Crystal-Structure-.jpg#100  
HCP-Crystal-Structure-of-Gadolinium.jpg#100  

Atom
  
  

Number of Protons
3  
99+
64  
99+

Number of Neutrons
4  
99+
93  
38

Number of Electrons
3  
99+
64  
99+

Radius of an Atom
  
  

Atomic Radius
152.00 pm  
33
180.00 pm  
16

Covalent Radius
128.00 pm  
99+
196.00 pm  
14

Van der Waals Radius
182.00 pm  
99+
237.00 pm  
19

Atomic Weight
6.94 amu  
99+
47.87 amu  
99+

Atomic Volume
13.10 cm3/mol  
99+
19.90 cm3/mol  
32

Adjacent Atomic Numbers
  
  

Previous Element
No Previous Element  
Europium
  

Next Element
Beryllium
  
Terbium
  

Valence Electron Potential
19.00 (-eV)  
99+
46.10 (-eV)  
35

Lattice Constant
351.00 pm  
99+
363.60 pm  
35

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

Lattice C/A Ratio
1.62  
16
1.59  
29

Mechanical

Density
  
  

Density At Room Temperature
0.53 g/cm3  
99+
7.90 g/cm3  
99+

Density When Liquid (at m.p.)
0.51 g/cm3  
99+
7.40 g/cm3  
99+

Tensile Strength
60.00 MPa  
35
158.00 MPa  
23

Viscosity
0.00  
10
0.00  
23

Vapor Pressure
  
  

Vapor Pressure at 1000 K
109.00 (Pa)  
2
0.00 (Pa)  
32

Vapor Pressure at 2000 K
0.00 (Pa)  
30
7.39 (Pa)  
9

Elasticity properties
  
  

Shear Modulus
4.20 GPa  
99+
21.80 GPa  
99+

Bulk Modulus
11.00 GPa  
99+
37.90 GPa  
99+

Young's Modulus
4.90 GPa  
99+
54.80 GPa  
38

Poisson Ratio
0.36  
8
0.26  
23

Other Mechanical Properties
-  
Ductile, Malleable  

Magnetic

Magnetic Characteristics
  
  

Specific Gravity
0.53  
99+
7.90  
99+

Magnetic Ordering
Paramagnetic  
Ferromagnetic  

Permeability
0.00 H/m  
11
0.00 H/m  
12

Susceptibility
0.00  
16
0.00  
4

Electrical Properties
  
  

Electrical Property
Conductor  
Conductor  

Resistivity
92.80 nΩ·m  
33
1.31 nΩ·m  
99+

Electrical Conductivity
0.11 106/cm Ω  
22
0.01 106/cm Ω  
99+

Electron Affinity
59.60 kJ/mol  
20
50.00 kJ/mol  
26

Thermal

Specific Heat
3.60 J/(kg K)  
1
0.23 J/(kg K)  
27

Molar Heat Capacity
24.86 J/mol·K  
99+
37.03 J/mol·K  
3

Thermal Conductivity
84.80 W/m·K  
20
10.60 W/m·K  
99+

Critical Temperature
3,223.00 K  
5
1,585.00 K  
38

Thermal Expansion
46.00 µm/(m·K)  
7
9.40 µm/(m·K)  
99+

Enthalpy
  
  

Enthalpy of Vaporization
134.70 kJ/mol  
99+
359.40 kJ/mol  
30

Enthalpy of Fusion
3.00 kJ/mol  
99+
10.05 kJ/mol  
99+

Enthalpy of Atomization
160.70 kJ/mol  
99+
352.00 kJ/mol  
36

Standard Molar Entropy
29.10 J/mol.K  
99+
68.10 J/mol.K  
16

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