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Properties of Nickel and Americium

Nickel
Americium
Properties of Americium & Nickel


Physical Properties
Melting Point
1,453.00 °C   
31
994.00 °C   
99+
Boiling Point
2,732.00 °C   
38
2,607.00 °C   
99+
Hardness
  
  
Mohs Hardness
4.00   
10
Not Available   
Brinell Hardness
667.00 MPa   
18
Not Available   
Vickers Hardness
638.00 MPa   
16
Not Available   
Optical Properties
  
  
Refractive Index
Not Available   
Not Available   
Reflectivity
72.00 %   
9
Not Available   
Speed of Sound
4,900.00 m/s   
12
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   
Am   
Isotopes
  
  
Known Isotopes
25   
14
16   
23
Electronegativity
  
  
Pauling Electronegativity
1.91   
10
1.30   
32
Sanderson Electronegativity
1.94   
10
Not Available   
Allred Rochow Electronegativity
1.75   
3
1.20   
27
Mulliken-Jaffe Electronegativity
Not Available   
Not Available   
Allen Electronegativity
1.88   
6
Not Available   
Electropositivity
  
  
Pauling Electropositivity
2.09   
99+
2.70   
22
Ionization Energies
  
  
1st Energy Level
737.10 kJ/mol   
25
578.00 kJ/mol   
99+
2nd Energy Level
1,753.00 kJ/mol   
25
1,158.00 kJ/mol   
99+
3rd Energy Level
3,395.00 kJ/mol   
17
2,132.00 kJ/mol   
99+
Electrochemical Equivalent
1.10 g/amp-hr   
99+
3.02 g/amp-hr   
17
Electron Work Function
5.15 eV   
2
Not Available   
Other Chemical Properties
?
Anti-corrosion metals have the protection on their surfaces which protect them from corroding in corrosive environments.Anti Corrosion, 
?
Ionization is the process by which an atom or a molecule acquires a negative or positive charge by gaining or losing electrons to form ions, often in conjunction with other chemical changes.Ionization, 
?
Radioactive metals emit particles and radiation from their nuclei. This process comes in the picture because their nuclei experience the intense conflict between two strong forces. This metal also have radioactive isotopes.Radioactive Isotopes   
?
Ionization is the process by which an atom or a molecule acquires a negative or positive charge by gaining or losing electrons to form ions, often in conjunction with other chemical changes.Ionization, 
?
Radioactive metals emit particles and radiation from their nuclei. This process comes in the picture because their nuclei experience the intense conflict between two strong forces. This metal also have radioactive isotopes.Radioactive Isotopes, 
?
Radioactive metals emit particles and radiation from their nuclei. This process comes in the picture because their nuclei experience the intense conflict between two strong forces.Radioactivity, 
?
Solubility is a chemical property referring to the ability for a given substance, the solute, to dissolve in a solvent.Solubility   
Mechanical Properties
Density
  
  
Density At Room Temperature
8.91 g/cm3   
99+
12.00 g/cm3   
30
Density When Liquid (at m.p.)
7.81 g/cm3   
29
Not Available   
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)   
31
0.00 (Pa)   
13
Vapor Pressure at 2000 K
19.50 (Pa)   
6
Not Available   
Tensile Strength
345.00 MPa   
11
Not Available   
Viscosity
Not Available   
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
?
Ductility of metals defines their ability to deform under tensile stress; this is often characterized by the metals ability to be stretched into a wire.Ductile   
NA   
Periodic Table
Symbol
Ni   
Am   
Group Number
10   
8
Not Available   
Period Number
4   
7   
Block
?
The d-block is on the middle of the periodic table and includes elements from columns 3 through 12. These elements are also known as the transition metals because they show a transitivity in their properties i.e. they show a trend in their properties.d block   
?
The f-block is in the center-left of a 32-column periodic table but in the footnoted appendage of 18-column tables. These elements are not generally considered as part of any group. They are often called inner transition metals.f block   
Element Family
?
What is Transition Metal? All transition metals are placed under the d-block from group number 3 to 12. Transition metals show characteristics like malleability, ductility and are good conductor of electricity.Transition Metal   
?
Total 15 metals are included in actinide series, from Actinium to Lawrencium. Actinide series is located under f and d block of the periodic table.Actinide   
Atomic Properties
Atomic Number
28   
99+
95   
23
Atomic Weight
58.69 amu   
99+
243.00 amu   
20
Atomic Volume
6.59 cm3/mol   
99+
17.86 cm3/mol   
29
Electron Configuration
[Ar] 3d8 4s2 Or [Ar] 3d9 4s1   
[Rn] 5f7 7s2   
Valence Electron Potential
42.00 (-eV)   
99+
44.00 (-eV)   
40
Atom
  
  
Number of Protons
28   
99+
95   
23
Number of Neutrons
31   
99+
148   
12
Number of Electrons
28   
99+
95   
23
Crystal Structure
?
In crystallography, the cubic (or isometric) crystal system is a crystal system where the unit cell is in the shape of a cube. This is one of the most common and simplest shapes found in crystals and minerals.Face Centered Cubic (FCC)   
?
In crystallography, the hexagonal crystal structure and its double hexagonal crystal structure is one of the 7 crystal structure, The hexagonal lattice system consists of just one Bravais lattice type: the hexagonal shape.Double Hexagonal Close Packed (DHCP)   
Crystal Lattice
FCC-Crystal-Structure-of-Nickel.jpg#100   
DHCP-Crystal-Structure-of-Americium.jpg#100   
Radius of an Atom
  
  
Atomic Radius
124.00 pm   
99+
173.00 pm   
21
Covalent Radius
124.00 pm   
99+
180.00 pm   
21
Van der Waals Radius
163.00 pm   
40
244.00 pm   
10
Lattice Constant
352.40 pm   
99+
346.81 pm   
99+
Lattice Angles
π/2, π/2, π/2   
π/2, π/2, 2 π/3   
Lattice C/A Ratio
Not Available   
Not Available   
Adjacent Atomic Numbers
  
  
Next Element
Copper
  
Curium
  
Previous Element
Cobalt
  
Plutonium
  
Magnetic Properties
Electrical Properties
  
  
Resistivity
69.30 nΩ·m   
39
0.69 nΩ·m   
99+
Electrical Conductivity
0.14 106/cm Ω   
13
0.02 106/cm Ω   
99+
Electron Affinity
112.00 kJ/mol   
6
Not Available   
Electrical Property
?
Conductor metals have very low resistance to electric currents. They can easily conduct electric current through them.Conductor   
Unknown   
Magnetic Characteristics
  
  
Specific Gravity
8.90   
33
13.67   
15
Magnetic Ordering
Ferromagnetic   
?
Paramagnetic metals are slightly attracted by magnet, but they can’t retain the magnetic effect once they are removed from the magnetic field.Paramagnetic   
Permeability
0.00 H/m   
2
Not Available   
Susceptibility
600.00   
2
Not Available   
Thermal Properties
Specific Heat
0.44 J/(kg K)   
13
0.11 J/(kg K)   
99+
Thermal Conductivity
90.90 W/m·K   
18
10.00 W/m·K   
99+
Critical Temperature
Not Available   
Not Available   
Molar Heat Capacity
26.07 J/mol·K   
31
62.70 J/mol·K   
1
Thermal Expansion
13.40 µm/(m·K)   
28
Not Available   
Standard Molar Entropy
29.90 J/mol.K   
99+
Not Available   
Enthalpy
  
  
Enthalpy of Vaporization
371.80 kJ/mol   
20
Not Available   
Enthalpy of Fusion
17.57 kJ/mol   
14
14.39 kJ/mol   
24
Enthalpy of Atomization
422.60 kJ/mol   
17
268.00 kJ/mol   
40
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