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Properties of Aluminium and Rubidium


Properties of Rubidium & Aluminium


Physical Properties

Melting Point
660.37 °C   
99+
38.89 °C   
99+

Boiling Point
2,467.00 °C   
99+
688.00 °C   
99+

Hardness
  
  

Mohs Hardness
2.75   
13
0.30   
24

Brinell Hardness
160.00 MPa   
99+
0.22 MPa   
99+

Vickers Hardness
160.00 MPa   
35
Not Available   

Optical Properties
  
  

Refractive Index
Not Available   
Not Available   

Reflectivity
71.00 %   
10
Not Available   

Speed of Sound
5,000.00 m/s   
10
1,300.00 m/s   
99+

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
Al   
Rb   

Isotopes
  
  

Known Isotopes
11   
27
29   
10

Electronegativity
  
  

Pauling Electronegativity
1.61   
22
0.82   
99+

Sanderson Electronegativity
1.71   
13
0.31   
32

Allred Rochow Electronegativity
1.47   
14
0.89   
40

Mulliken-Jaffe Electronegativity
1.83   
8
0.69   
24

Allen Electronegativity
1.61   
20
0.71   
99+

Electropositivity
  
  

Pauling Electropositivity
2.39   
32
3.18   
3

Ionization Energies
  
  

1st Energy Level
577.50 kJ/mol   
99+
403.00 kJ/mol   
99+

2nd Energy Level
1,816.70 kJ/mol   
19
2,633.00 kJ/mol   
6

3rd Energy Level
2,744.80 kJ/mol   
38
3,860.00 kJ/mol   
11

Electrochemical Equivalent
0.34 g/amp-hr   
99+
3.19 g/amp-hr   
14

Electron Work Function
4.28 eV   
19
2.16 eV   
99+

Other Chemical Properties
?
Stable metals are non radioactive metals and have zero valence electrons in the outer shell.Chemical Stability, 
?
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
  
?
Corrosion is a process which converts refined metals to their more stable forms, for example, its oxide and hydroxide. This process of metals getting corroded is a gradual destruction of metals by chemical reactions.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, 
?
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
  

Mechanical Properties

Density
  
  

Density At Room Temperature
2.70 g/cm3   
99+
1.53 g/cm3   
99+

Density When Liquid (at m.p.)
2.38 g/cm3   
99+
1.46 g/cm3   
99+

Vapor Pressure
  
  

Vapor Pressure at 1000 K
0.00 (Pa)   
18
Not Available   

Vapor Pressure at 2000 K
Not Available   
Not Available   

Tensile Strength
40.00 MPa   
19
Not Available   

Viscosity
Not Available   
Not Available   

Elasticity properties
  
  

Shear Modulus
26.00 GPa   
29
Not Available   

Bulk Modulus
76.00 GPa   
18
2.50 GPa   
99+

Young's Modulus
70.00 GPa   
28
2.40 GPa   
99+

Poisson Ratio
0.35   
9
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, 
?
Malleability of metals defines their ability to deform under compressive stress; this is often characterized by the metals ability to form a thin sheet by hammering or rolling.Malleable
  
?
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
  

Periodic Table

Symbol
Al   
Rb   

Group Number
13   
5
1   
17

Period Number
3   
5   

Block
?
The p-block is on the right side of the periodic table and includes elements from the six columns beginning with column 13 and ending with column 18. Helium, though being in the top of group 18, is not included in the p-block.p block
  
?
The s-block is on the left side of the periodic table that includes elements from the first two columns, the alkali metals (group 1) and alkaline earth metals (group 2), plus helium.s block
  

Element Family
?
All post transition metals are placed in group number 13, 14 and 15 of periodic table. In fact, they are located between Transition Metals and Metalloids. Post transition metals have very poor mechanical properties.Post-​Transition
  
?
All alkali metals are placed under group number 1 and s-block of periodic table. These metals are highly reactive and are found in ores of other metals and minerals. Alkali metals can be easily distinguished from others as these metals have only 1 electronAlkali
  

Atomic Properties

Atomic Number
13   
99+
37   
99+

Atomic Weight
26.98 amu   
99+
85.47 amu   
99+

Atomic Volume
10.00 cm3/mol   
99+
55.90 cm3/mol   
2

Electron Configuration
[Ne] 3s2 3p1   
[Kr] 5s1   

Valence Electron Potential
80.70 (-eV)   
17
9.47 (-eV)   
99+

Atom
  
  

Number of Protons
13   
99+
37   
99+

Number of Neutrons
14   
99+
48   
99+

Number of Electrons
13   
99+
37   
99+

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)
  
?
BCC is a basis type of cubic crystal structure. In crystallography, the cubic crystals structure is a crystal system where the unit cell has a cube shaped structure. This is one of the simplest crystal structure found in crystals of metal.Body Centered Cubic (BCC)
  

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

Radius of an Atom
  
  

Atomic Radius
143.00 pm   
37
248.00 pm   
2

Covalent Radius
121.00 pm   
99+
220.00 pm   
4

Van der Waals Radius
184.00 pm   
34
303.00 pm   
3

Lattice Constant
404.95 pm   
22
558.50 pm   
10

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

Lattice C/A Ratio
Not Available   
Not Available   

Adjacent Atomic Numbers
  
  

Next Element
Potassium
  
Strontium
  

Previous Element
Magnesium
  
Gallium
  

Magnetic Properties

Electrical Properties
  
  

Resistivity
28.20 nΩ·m   
99+
128.00 nΩ·m   
26

Electrical Conductivity
0.38 106/cm Ω   
4
0.08 106/cm Ω   
24

Electron Affinity
42.50 kJ/mol   
26
46.90 kJ/mol   
24

Electrical Property
?
Conductor metals have very low resistance to electric currents. They can easily conduct electric current through them.Conductor
  
?
Conductor metals have very low resistance to electric currents. They can easily conduct electric current through them.Conductor
  

Magnetic Characteristics
  
  

Specific Gravity
2.72   
99+
1.53   
99+

Magnetic Ordering
?
Paramagnetic metals are slightly attracted by magnet, but they can’t retain the magnetic effect once they are removed from the magnetic field.Paramagnetic
  
?
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   
4
Not Available   

Susceptibility
0.00   
3
Not Available   

Thermal Properties

Specific Heat
0.90 J/(kg K)   
5
0.36 J/(kg K)   
17

Thermal Conductivity
237.00 W/m·K   
4
58.20 W/m·K   
26

Critical Temperature
Not Available   
2,093.00 K   
4

Molar Heat Capacity
24.20 J/mol·K   
99+
31.06 J/mol·K   
5

Thermal Expansion
23.10 µm/(m·K)   
17
90.00 µm/(m·K)   
2

Standard Molar Entropy
28.30 J/mol.K   
99+
76.80 J/mol.K   
5

Enthalpy
  
  

Enthalpy of Vaporization
293.70 kJ/mol   
31
69.20 kJ/mol   
99+

Enthalpy of Fusion
10.67 kJ/mol   
35
2.19 kJ/mol   
99+

Enthalpy of Atomization
322.20 kJ/mol   
31
82.00 kJ/mol   
99+

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