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Actinium Vanadium Comparison


Vanadium Actinium comparison


Periodic Table

Symbol
Ac   
V   

Group Number
Not Available   
5   
13

Period Number
7   
4   

Block
f block   
d block   

Element Family
Actinide   
Transition Metal   

CAS Number
7440348   
99+
7440622   
27

Space Group Name
Fm_ 3m   
Im_ 3m   

Space Group Number
225.00   
2
229.00   
1

Facts

Interesting Facts
Not Available   
  • Vanadium is a highly reactive metal, hence it is not found free in nature.
  • Vanadium can be found in almost 65 different types of minerals.
  

Sources
Obtained by Treating Radium with Neutrons, Ores of metals   
Found As a By-product, Found in Minerals, Mining, Ores of Minerals   

History
  
  

Who Discovered
Friedrich Oskar Giesel   
Andrés Manuel del Río   

Discovery
In 1902   
In 1801   

Abundance
  
  

Abundance In Universe
Not Available   
1 * 10-4 %   
10

Abundance In Sun
~-9999 %   
~0.00004 %   
13

Abundance In Meteorites
Not Available   
0.01 %   
14

Abundance In Earth's Crust
Not Available   
0.02 %   
12

Abundance In Oceans
Not Available   
0.00 %   
14

Abundance In Humans
Not Available   
0.00 %   
16

Uses

Uses & Benefits
  • Actinium metal has a great source of alpha rays but it is hardly used outside research purpose.
  
  • Its ally with steel is used very tough and hence it is used in armor plates, axles, piston rods, tools and crankshafts.
  • Its oxide is used as pigments for glass and ceramics.
  

Industrial Uses
NA   
Aerospace Industry, Automobile Industry, Chemical Industry   

Medical Uses
NA   
NA   

Other Uses
Alloys, Nuclear Research, Research Purposes   
Alloys   

Biological Properties
  
  

Toxicity
Toxic   
Toxic   

Present in Human Body
No   
Yes   

In Blood
0.00 Blood/mg dm-3   
37
0.00 Blood/mg dm-3   
36

In Bone
0.00 p.p.m.   
36
0.00 p.p.m.   
31

Physical Properties

Melting Point
1,227.00 °C   
38
1,890.00 °C   
13

Boiling Point
3,200.00 °C   
26
3,380.00 °C   
20

Appearance
  
  

Physical State
Solid   
Solid   

Color
Silvery White   
Blue-Silver Grey   

Luster
NA   
Metallic   

Hardness
  
  

Mohs Hardness
Not Available   
6.70   
4

Brinell Hardness
Not Available   
600.00 MPa   
20

Vickers Hardness
Not Available   
628.00 MPa   
17

Speed of Sound
Not Available   
4,560.00 m/s   
17

Optical Properties
  
  

Reflectivity
Not Available   
61.00 %   
14

Allotropes
No   
No   

α Allotropes
Not Available   
Not Available   

β Allotropes
Not Available   
Not Available   

γ Allotropes
Not Available   
Not Available   

Chemical Properties

Chemical Formula
Ac   
V   

Isotopes
  
  

Known Isotopes
29   
10
22   
17

Electronegativity
  
  

Pauling Electronegativity
1.10   
99+
1.63   
20

Sanderson Electronegativity
Not Available   
1.39   
17

Allred Rochow Electronegativity
1.00   
36
1.45   
16

Allen Electronegativity
Not Available   
1.53   
26

Electropositivity
  
  

Pauling Electropositivity
2.90   
10
2.37   
34

Ionization Energies
  
  

1st Energy Level
499.00 kJ/mol   
99+
650.90 kJ/mol   
99+

2nd Energy Level
1,170.00 kJ/mol   
99+
1,414.00 kJ/mol   
99+

3rd Energy Level
1,900.00 kJ/mol   
99+
2,830.00 kJ/mol   
35

4th Energy Level
4,700.00 kJ/mol   
23
4,507.00 kJ/mol   
25

5th Energy Level
Not Available   
6,298.70 kJ/mol   
23

6th Energy Level
Not Available   
12,363.00 kJ/mol   
5

7th Energy level
Not Available   
14,530.00 kJ/mol   
5

8th Energy Level
Not Available   
16,730.00 kJ/mol   
7

9th Energy Level
Not Available   
19,860.00 kJ/mol   
7

10th Energy Level
Not Available   
22,240.00 kJ/mol   
12

11th Energy Level
Not Available   
24,670.00 kJ/mol   
15

12th Energy Level
Not Available   
29,730.00 kJ/mol   
12

13th Energy Level
Not Available   
32,446.00 kJ/mol   
12

14th Energy Level
Not Available   
86,450.00 kJ/mol   
1

15th Energy Level
Not Available   
94,170.00 kJ/mol   
2

16th Energy Level
Not Available   
102,300.00 kJ/mol   
3

17th Energy Level
Not Available   
112,700.00 kJ/mol   
4

18th Energy Level
Not Available   
121,600.00 kJ/mol   
5

19th Energy Level
Not Available   
130,700.00 kJ/mol   
6

20th Energy Level
Not Available   
143,400.00 kJ/mol   
8

21st Energy Level
Not Available   
151,440.00 kJ/mol   
8

Electrochemical Equivalent
2.82 g/amp-hr   
18
0.38 g/amp-hr   
99+

Electron Work Function
Not Available   
4.30 eV   
18

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

Atomic Properties

Atomic Number
89   
29
23   
99+

Electron Configuration
[Rn] 6d1 7s2   
[Ar] 3d3 4s2   

Crystal Structure
Face Centered Cubic (FCC)   
Body Centered Cubic (BCC)   

Crystal Lattice
FCC-Crystal-Structure-of-Actinium.jpg#100   
BCC-Crystal-Structure-.jpg#100   

Atom
  
  

Number of Protons
89   
29
23   
99+

Number of Neutrons
138   
16
28   
99+

Number of Electrons
89   
29
23   
99+

Radius of an Atom
  
  

Atomic Radius
195.00 pm   
7
134.00 pm   
99+

Covalent Radius
Not Available   
153.00 pm   
33

Van der Waals Radius
Not Available   
200.00 pm   
28

Atomic Weight
227.00 amu   
25
50.94 amu   
99+

Atomic Volume
22.54 cm3/mol   
11
8.78 cm3/mol   
99+

Adjacent Atomic Numbers
  
  

Previous Element
Radium
  
Titanium
  

Next Element
Thorium
  
Chromium
  

Valence Electron Potential
38.60 (-eV)   
99+
120.00 (-eV)   
6

Lattice Constant
567.00 pm   
8
303.00 pm   
99+

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

Lattice C/A Ratio
Not Available   
Not Available   

Mechanical Properties

Density
  
  

Density At Room Temperature
10.00 g/cm3   
37
6.00 g/cm3   
99+

Density When Liquid (at m.p.)
Not Available   
5.50 g/cm3   
99+

Tensile Strength
Not Available   
800.00 MPa   
6

Viscosity
Not Available   
Not Available   

Vapor Pressure
  
  

Vapor Pressure at 2000 K
Not Available   
0.23 (Pa)   
16

Elasticity properties
  
  

Shear Modulus
Not Available   
47.00 GPa   
16

Bulk Modulus
Not Available   
160.00 GPa   
11

Young's Modulus
Not Available   
128.00 GPa   
15

Poisson Ratio
Not Available   
0.37   
7

Other Mechanical Properties
NA   
Ductile, Malleable   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
10.07   
28
5.96   
99+

Magnetic Ordering
Paramagnetic   
Paramagnetic   

Electrical Properties
  
  

Electrical Property
Unknown   
Superconductor   

Resistivity
Not Available   
197.00 nΩ·m   
19

Electrical Conductivity
Not Available   
0.05 106/cm Ω   
35

Electron Affinity
Not Available   
50.60 kJ/mol   
20

Thermal Properties

Specific Heat
0.12 J/(kg K)   
40
0.49 J/(kg K)   
10

Molar Heat Capacity
27.20 J/mol·K   
18
24.89 J/mol·K   
99+

Thermal Conductivity
12.00 W/m·K   
99+
30.70 W/m·K   
39

Critical Temperature
Not Available   
Not Available   

Thermal Expansion
Not Available   
8.40 µm/(m·K)   
99+

Enthalpy
  
  

Enthalpy of Vaporization
Not Available   
458.60 kJ/mol   
14

Enthalpy of Fusion
Not Available   
17.57 kJ/mol   
14

Enthalpy of Atomization
301.00 kJ/mol   
36
514.60 kJ/mol   
13

Standard Molar Entropy
56.50 J/mol.K   
25
28.90 J/mol.K   
99+

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