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Nickel Actinium Comparison


Actinium Nickel comparison


Periodic Table

Symbol
Ni   
Ac   

Group Number
10   
8
Not Available   

Period Number
4   
7   

Block
d block   
f block   

Element Family
Transition Metal   
Actinide   

CAS Number
7440020   
99+
7440348   
99+

Space Group Name
Fm_ 3m   
Fm_ 3m   

Space Group Number
225.00   
2
225.00   
2

Facts

Interesting Facts
  • Zinc metal found (obtain) in many forms like granules, foil, dust and in a powder form.
  • After iron, Zinc metal the second most abundant element in the earth crust.
  
Not Available   

Sources
Found in Minerals, Mining, Ores of Minerals   
Obtained by Treating Radium with Neutrons, Ores of metals   

History
  
  

Who Discovered
Axel Fredrik Cronstedt   
Friedrich Oskar Giesel   

Discovery
In 1751   
In 1902   

Abundance
  
  

Abundance In Universe
6 * 10-3 %   
4
Not Available   

Abundance In Sun
~0.008 %   
3
~-9999 %   

Abundance In Meteorites
1.30 %   
3
Not Available   

Abundance In Earth's Crust
0.01 %   
15
Not Available   

Abundance In Oceans
0.00 %   
13
Not Available   

Abundance In Humans
0.00 %   
14
Not Available   

Uses

Uses & Benefits
  • It has corrosion resistance and hence it is used to plate other metals.
  • Its alloys are very useful; Nichrome alloy is used in the hot coil of toasters and electric oven.
  
  • Actinium metal has a great source of alpha rays but it is hardly used outside research purpose.
  

Industrial Uses
Automobile Industry, Electrical Industry, Electronic Industry   
NA   

Medical Uses
NA   
NA   

Other Uses
Alloys   
Alloys, Nuclear Research, Research Purposes   

Biological Properties
  
  

Toxicity
Toxic   
Toxic   

Present in Human Body
Yes   
No   

In Blood
0.05 Blood/mg dm-3   
17
0.00 Blood/mg dm-3   
37

In Bone
0.70 p.p.m.   
18
0.00 p.p.m.   
36

Physical Properties

Melting Point
1,453.00 °C   
31
1,227.00 °C   
38

Boiling Point
2,732.00 °C   
38
3,200.00 °C   
26

Appearance
  
  

Physical State
Solid   
Solid   

Color
Silver   
Silvery White   

Luster
Metallic   
NA   

Hardness
  
  

Mohs Hardness
4.00   
10
Not Available   

Brinell Hardness
667.00 MPa   
18
Not Available   

Vickers Hardness
638.00 MPa   
16
Not Available   

Speed of Sound
4,900.00 m/s   
12
Not Available   

Optical Properties
  
  

Reflectivity
72.00 %   
9
Not Available   

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
Ni   
Ac   

Isotopes
  
  

Known Isotopes
25   
14
29   
10

Electronegativity
  
  

Pauling Electronegativity
1.91   
10
1.10   
99+

Sanderson Electronegativity
1.94   
10
Not Available   

Allred Rochow Electronegativity
1.75   
3
1.00   
36

Allen Electronegativity
1.88   
6
Not Available   

Electropositivity
  
  

Pauling Electropositivity
2.09   
99+
2.90   
10

Ionization Energies
  
  

1st Energy Level
737.10 kJ/mol   
25
499.00 kJ/mol   
99+

2nd Energy Level
1,753.00 kJ/mol   
25
1,170.00 kJ/mol   
99+

3rd Energy Level
3,395.00 kJ/mol   
17
1,900.00 kJ/mol   
99+

4th Energy Level
5,300.00 kJ/mol   
15
4,700.00 kJ/mol   
23

5th Energy Level
7,339.00 kJ/mol   
15
Not Available   

6th Energy Level
10,400.00 kJ/mol   
9
Not Available   

7th Energy level
12,800.00 kJ/mol   
10
Not Available   

8th Energy Level
15,600.00 kJ/mol   
10
Not Available   

9th Energy Level
18,600.00 kJ/mol   
10
Not Available   

10th Energy Level
21,670.00 kJ/mol   
14
Not Available   

11th Energy Level
30,970.00 kJ/mol   
7
Not Available   

12th Energy Level
34,000.00 kJ/mol   
7
Not Available   

13th Energy Level
37,100.00 kJ/mol   
7
Not Available   

14th Energy Level
41,500.00 kJ/mol   
8
Not Available   

15th Energy Level
44,800.00 kJ/mol   
10
Not Available   

16th Energy Level
48,100.00 kJ/mol   
12
Not Available   

17th Energy Level
55,101.00 kJ/mol   
11
Not Available   

18th Energy Level
58,570.00 kJ/mol   
12
Not Available   

19th Energy Level
148,700.00 kJ/mol   
1
Not Available   

20th Energy Level
159,000.00 kJ/mol   
3
Not Available   

21st Energy Level
169,400.00 kJ/mol   
3
Not Available   

22nd Energy Level
182,700.00 kJ/mol   
2
Not Available   

23rd Energy Level
194,000.00 kJ/mol   
2
Not Available   

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

Electron Work Function
5.15 eV   
2
Not Available   

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

Atomic Properties

Atomic Number
28   
99+
89   
29

Electron Configuration
[Ar] 3d8 4s2 Or [Ar] 3d9 4s1   
[Rn] 6d1 7s2   

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

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

Atom
  
  

Number of Protons
28   
99+
89   
29

Number of Neutrons
31   
99+
138   
16

Number of Electrons
28   
99+
89   
29

Radius of an Atom
  
  

Atomic Radius
124.00 pm   
99+
195.00 pm   
7

Covalent Radius
124.00 pm   
99+
Not Available   

Van der Waals Radius
163.00 pm   
40
Not Available   

Atomic Weight
58.69 amu   
99+
227.00 amu   
25

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

Adjacent Atomic Numbers
  
  

Previous Element
Cobalt
  
Radium
  

Next Element
Copper
  
Thorium
  

Valence Electron Potential
42.00 (-eV)   
99+
38.60 (-eV)   
99+

Lattice Constant
352.40 pm   
99+
567.00 pm   
8

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
8.91 g/cm3   
99+
10.00 g/cm3   
37

Density When Liquid (at m.p.)
7.81 g/cm3   
29
Not Available   

Tensile Strength
345.00 MPa   
11
Not Available   

Viscosity
Not Available   
Not Available   

Vapor Pressure
  
  

Vapor Pressure at 1000 K
0.00 (Pa)   
31
Not Available   

Vapor Pressure at 2000 K
19.50 (Pa)   
6
Not Available   

Elasticity properties
  
  

Shear Modulus
76.00 GPa   
12
Not Available   

Bulk Modulus
180.00 GPa   
9
Not Available   

Young's Modulus
200.00 GPa   
11
Not Available   

Poisson Ratio
0.31   
13
Not Available   

Other Mechanical Properties
Ductile   
NA   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
8.90   
33
10.07   
28

Magnetic Ordering
Ferromagnetic   
Paramagnetic   

Permeability
0.00 H/m   
2
Not Available   

Susceptibility
600.00   
2
Not Available   

Electrical Properties
  
  

Electrical Property
Conductor   
Unknown   

Resistivity
69.30 nΩ·m   
39
Not Available   

Electrical Conductivity
0.14 106/cm Ω   
13
Not Available   

Electron Affinity
112.00 kJ/mol   
6
Not Available   

Thermal Properties

Specific Heat
0.44 J/(kg K)   
13
0.12 J/(kg K)   
40

Molar Heat Capacity
26.07 J/mol·K   
31
27.20 J/mol·K   
18

Thermal Conductivity
90.90 W/m·K   
18
12.00 W/m·K   
99+

Critical Temperature
Not Available   
Not Available   

Thermal Expansion
13.40 µm/(m·K)   
28
Not Available   

Enthalpy
  
  

Enthalpy of Vaporization
371.80 kJ/mol   
20
Not Available   

Enthalpy of Fusion
17.57 kJ/mol   
14
Not Available   

Enthalpy of Atomization
422.60 kJ/mol   
17
301.00 kJ/mol   
36

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

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