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Actinium vs Nickel

Actinium
Nickel
Nickel vs Actinium


Periodic Table
Symbol
Ac  
Ni  
Group Number
Not Available  
10  
8
Period Number
7  
4  
Block
f block  
d block  
Element Family
Actinide  
Transition Metal  
CAS Number
7440348  
99+
7440020  
99+
Space Group Name
Fm_ 3m  
Fm_ 3m  
Space Group Number
225.00  
2
225.00  
2
Facts
Interesting Facts
Not Available  
  • 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.
  
Sources
Obtained by Treating Radium with Neutrons, Ores of metals  
Found in Minerals, Mining, Ores of Minerals  
History
  
  
Who Discovered
Friedrich Oskar Giesel  
Axel Fredrik Cronstedt  
Discovery
In 1902  
In 1751  
Abundance
  
  
Abundance In Universe
Not Available  
6 * 10-3 %  
4
Abundance In Sun
~-9999 %  
~0.008 %  
3
Abundance In Meteorites
Not Available  
1.30 %  
3
Abundance In Earth's Crust
Not Available  
0.01 %  
15
Abundance In Oceans
Not Available  
0.00 %  
13
Abundance In Humans
Not Available  
0.00 %  
14
Uses
Uses & Benefits
  • Actinium metal has a great source of alpha rays but it is hardly used outside research purpose.
  
  • 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.
  
Industrial Uses
NA  
Automobile Industry, Electrical Industry, Electronic 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
0.05 Blood/mg dm-3  
17
In Bone
0.00 p.p.m.  
36
0.70 p.p.m.  
18
Physical Properties
Melting Point
1,227.00 °C  
38
1,453.00 °C  
31
Boiling Point
3,200.00 °C  
26
2,732.00 °C  
38
Appearance
  
  
Physical State
Solid  
Solid  
Color
Silvery White  
Silver  
Luster
NA  
Metallic  
Hardness
  
  
Mohs Hardness
Not Available  
4.00  
10
Brinell Hardness
Not Available  
667.00 MPa  
18
Vickers Hardness
Not Available  
638.00 MPa  
16
Speed of Sound
Not Available  
4,900.00 m/s  
12
Optical Properties
  
  
Reflectivity
Not Available  
72.00 %  
9
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  
Ni  
Isotopes
  
  
Known Isotopes
29  
10
25  
14
Electronegativity
  
  
Pauling Electronegativity
1.10  
99+
1.91  
10
Sanderson Electronegativity
Not Available  
1.94  
10
Allred Rochow Electronegativity
1.00  
36
1.75  
3
Allen Electronegativity
Not Available  
1.88  
6
Electropositivity
  
  
Pauling Electropositivity
2.90  
10
2.09  
99+
Ionization Energies
  
  
1st Energy Level
499.00 kJ/mol  
99+
737.10 kJ/mol  
25
2nd Energy Level
1,170.00 kJ/mol  
99+
1,753.00 kJ/mol  
25
3rd Energy Level
1,900.00 kJ/mol  
99+
3,395.00 kJ/mol  
17
4th Energy Level
4,700.00 kJ/mol  
23
5,300.00 kJ/mol  
15
5th Energy Level
Not Available  
7,339.00 kJ/mol  
15
6th Energy Level
Not Available  
10,400.00 kJ/mol  
9
7th Energy level
Not Available  
12,800.00 kJ/mol  
10
8th Energy Level
Not Available  
15,600.00 kJ/mol  
10
9th Energy Level
Not Available  
18,600.00 kJ/mol  
10
10th Energy Level
Not Available  
21,670.00 kJ/mol  
14
11th Energy Level
Not Available  
30,970.00 kJ/mol  
7
12th Energy Level
Not Available  
34,000.00 kJ/mol  
7
13th Energy Level
Not Available  
37,100.00 kJ/mol  
7
14th Energy Level
Not Available  
41,500.00 kJ/mol  
8
15th Energy Level
Not Available  
44,800.00 kJ/mol  
10
16th Energy Level
Not Available  
48,100.00 kJ/mol  
12
17th Energy Level
Not Available  
55,101.00 kJ/mol  
11
18th Energy Level
Not Available  
58,570.00 kJ/mol  
12
19th Energy Level
Not Available  
148,700.00 kJ/mol  
1
20th Energy Level
Not Available  
159,000.00 kJ/mol  
3
21st Energy Level
Not Available  
169,400.00 kJ/mol  
3
22nd Energy Level
Not Available  
182,700.00 kJ/mol  
2
23rd Energy Level
Not Available  
194,000.00 kJ/mol  
2
Electrochemical Equivalent
2.82 g/amp-hr  
18
1.10 g/amp-hr  
99+
Electron Work Function
Not Available  
5.15 eV  
2
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity, Solubility  
Anti Corrosion, Ionization, Radioactive Isotopes  
Atomic Properties
Atomic Number
89  
29
28  
99+
Electron Configuration
[Rn] 6d1 7s2  
[Ar] 3d8 4s2 Or [Ar] 3d9 4s1  
Crystal Structure
Face Centered Cubic (FCC)  
Face Centered Cubic (FCC)  
Crystal Lattice
FCC-Crystal-Structure-of-Actinium.jpg#100  
FCC-Crystal-Structure-of-Nickel.jpg#100  
Atom
  
  
Number of Protons
89  
29
28  
99+
Number of Neutrons
138  
16
31  
99+
Number of Electrons
89  
29
28  
99+
Radius of an Atom
  
  
Atomic Radius
195.00 pm  
7
124.00 pm  
99+
Covalent Radius
Not Available  
124.00 pm  
99+
Van der Waals Radius
Not Available  
163.00 pm  
40
Atomic Weight
227.00 amu  
25
58.69 amu  
99+
Atomic Volume
22.54 cm3/mol  
11
6.59 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Radium
  
Cobalt
  
Next Element
Thorium
  
Copper
  
Valence Electron Potential
38.60 (-eV)  
99+
42.00 (-eV)  
99+
Lattice Constant
567.00 pm  
8
352.40 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
8.91 g/cm3  
99+
Density When Liquid (at m.p.)
Not Available  
7.81 g/cm3  
29
Tensile Strength
Not Available  
345.00 MPa  
11
Viscosity
Not Available  
Not Available  
Vapor Pressure
  
  
Vapor Pressure at 1000 K
Not Available  
0.00 (Pa)  
31
Vapor Pressure at 2000 K
Not Available  
19.50 (Pa)  
6
Elasticity properties
  
  
Shear Modulus
Not Available  
76.00 GPa  
12
Bulk Modulus
Not Available  
180.00 GPa  
9
Young's Modulus
Not Available  
200.00 GPa  
11
Poisson Ratio
Not Available  
0.31  
13
Other Mechanical Properties
NA  
Ductile  
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
10.07  
28
8.90  
33
Magnetic Ordering
Paramagnetic  
Ferromagnetic  
Permeability
Not Available  
0.00 H/m  
2
Susceptibility
Not Available  
600.00  
2
Electrical Properties
  
  
Electrical Property
Unknown  
Conductor  
Resistivity
Not Available  
69.30 nΩ·m  
39
Electrical Conductivity
Not Available  
0.14 106/cm Ω  
13
Electron Affinity
Not Available  
112.00 kJ/mol  
6
Thermal Properties
Specific Heat
0.12 J/(kg K)  
40
0.44 J/(kg K)  
13
Molar Heat Capacity
27.20 J/mol·K  
18
26.07 J/mol·K  
31
Thermal Conductivity
12.00 W/m·K  
99+
90.90 W/m·K  
18
Critical Temperature
Not Available  
Not Available  
Thermal Expansion
Not Available  
13.40 µm/(m·K)  
28
Enthalpy
  
  
Enthalpy of Vaporization
Not Available  
371.80 kJ/mol  
20
Enthalpy of Fusion
Not Available  
17.57 kJ/mol  
14
Enthalpy of Atomization
301.00 kJ/mol  
36
422.60 kJ/mol  
17
Standard Molar Entropy
56.50 J/mol.K  
25
29.90 J/mol.K  
99+
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