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Calcium vs Lithium

Calcium
Lithium
Lithium vs Calcium


Periodic Table
Symbol
Ca   
Li   
Group Number
2   
16
1   
17
Period Number
4   
2   
Block
s block   
s block   
Element Family
Alkaline Earth   
Alkali   
CAS Number
7440702   
21
7439932   
99+
Space Group Name
Fm_ 3m   
Im_ 3m   
Space Group Number
225.00   
2
229.00   
1
Facts
Interesting Facts
  • Calcium ranks 5th rank in the list of earth’s abundance Percentage.
  • It is found in the compound state.
  • Gypsum or calcium sulfate is used as plaster and plaster of paris.
  
  • Heat capacity of Lithium is very high.
  • Lithium inflammable and highly explosive metal, hence it has to be stored properly.
  
Sources
Earth's crust, Found in Minerals, Mining, Ores of Minerals   
Found in Minerals, Mining   
History
  
  
Who Discovered
Humphry Davy   
Johan August Arfwedson   
Discovery
In 1808   
In 1817   
Abundance
  
  
Abundance In Universe
7 * 10-3 %   
3
6 * 10-7 %   
18
Abundance In Sun
~0.007 %   
4
~0.00017 %   
11
Abundance In Meteorites
1.10 %   
4
0.00 %   
22
Abundance In Earth's Crust
5.00 %   
3
0.00 %   
99+
Abundance In Oceans
0.00 %   
5
0.00 %   
15
Abundance In Humans
1.40 %   
1
0.00 %   
16
Uses
Uses & Benefits
  • It is used as a reducing agent while preparing metals like thorium and uranium. It is also used as an alloying agent for metals such as aluminum, copper & lead.
  • Calcium carbonate or lime stone is used in cement.
  
  • The main usage of Lithium is manufacturing rechargeable batteries for electronic equipment and gadgets.
  • it is also used in manufacturing non-rechargeable batteries.
  
Industrial Uses
Chemical Industry   
Aerospace Industry, Electrical Industry, Electronic Industry   
Medical Uses
Dentistry, Pharmaceutical Industry   
NA   
Other Uses
Alloys   
Alloys   
Biological Properties
  
  
Toxicity
Non Toxic   
NA   
Present in Human Body
Yes   
Yes   
In Blood
60.50 Blood/mg dm-3   
4
0.00 Blood/mg dm-3   
27
In Bone
170,000.00 p.p.m.   
1
1.30 p.p.m.   
17
Physical Properties
Melting Point
839.00 °C   
99+
180.54 °C   
99+
Boiling Point
1,484.00 °C   
99+
1,347.00 °C   
99+
Appearance
  
  
Physical State
Solid   
Solid   
Color
Gray   
Silvery White   
Luster
NA   
NA   
Hardness
  
  
Mohs Hardness
1.75   
17
0.60   
21
Brinell Hardness
170.00 MPa   
99+
5.00 MPa   
99+
Speed of Sound
3,810.00 m/s   
19
6,000.00 m/s   
3
Optical Properties
  
  
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
Ca   
Li   
Isotopes
  
  
Known Isotopes
19   
20
8   
30
Electronegativity
  
  
Pauling Electronegativity
1.00   
99+
0.98   
99+
Sanderson Electronegativity
0.95   
24
0.89   
26
Allred Rochow Electronegativity
1.04   
34
0.97   
38
Mulliken-Jaffe Electronegativity
1.08   
17
0.97   
19
Allen Electronegativity
1.03   
39
0.91   
99+
Electropositivity
  
  
Pauling Electropositivity
3.00   
9
3.02   
8
Ionization Energies
  
  
1st Energy Level
589.80 kJ/mol   
99+
520.20 kJ/mol   
99+
2nd Energy Level
1,145.40 kJ/mol   
99+
7,298.10 kJ/mol   
3
3rd Energy Level
4,912.40 kJ/mol   
7
11,815.00 kJ/mol   
4
4th Energy Level
6,491.00 kJ/mol   
7
Not Available   
5th Energy Level
8,153.00 kJ/mol   
7
Not Available   
6th Energy Level
10,496.00 kJ/mol   
8
Not Available   
7th Energy level
12,270.00 kJ/mol   
12
Not Available   
8th Energy Level
14,206.00 kJ/mol   
15
Not Available   
9th Energy Level
18,191.00 kJ/mol   
12
Not Available   
10th Energy Level
20,385.00 kJ/mol   
16
Not Available   
11th Energy Level
57,110.00 kJ/mol   
3
Not Available   
12th Energy Level
63,410.00 kJ/mol   
3
Not Available   
13th Energy Level
70,110.00 kJ/mol   
3
Not Available   
14th Energy Level
78,890.00 kJ/mol   
4
Not Available   
15th Energy Level
86,310.00 kJ/mol   
5
Not Available   
16th Energy Level
94,000.00 kJ/mol   
6
Not Available   
17th Energy Level
104,900.00 kJ/mol   
7
Not Available   
18th Energy Level
111,711.00 kJ/mol   
8
Not Available   
Electrochemical Equivalent
0.75 g/amp-hr   
99+
0.26 g/amp-hr   
99+
Electron Work Function
2.87 eV   
38
2.90 eV   
37
Other Chemical Properties
Chemical Stability, Flammability, Ionization, Solubility   
Corrosion, Flammable, Ionization, Radioactive Isotopes   
Atomic Properties
Atomic Number
20   
99+
3   
99+
Electron Configuration
[Ar] 4s2   
[He] 2s1   
Crystal Structure
Face Centered Cubic (FCC)   
Body Centered Cubic (BCC)   
Crystal Lattice
FCC-Crystal-Structure-of-Calcium.jpg#100   
BCC-Crystal-Structure-.jpg#100   
Atom
  
  
Number of Protons
20   
99+
3   
99+
Number of Neutrons
20   
99+
4   
99+
Number of Electrons
20   
99+
3   
99+
Radius of an Atom
  
  
Atomic Radius
197.00 pm   
6
152.00 pm   
31
Covalent Radius
176.00 pm   
22
128.00 pm   
99+
Van der Waals Radius
231.00 pm   
19
182.00 pm   
35
Atomic Weight
40.08 amu   
99+
6.94 amu   
99+
Atomic Volume
29.90 cm3/mol   
7
13.10 cm3/mol   
39
Adjacent Atomic Numbers
  
  
Previous Element
Potassium
  
No Previous Element   
Next Element
Scandium
  
Beryllium
  
Valence Electron Potential
29.00 (-eV)   
99+
19.00 (-eV)   
99+
Lattice Constant
558.84 pm   
9
351.00 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
1.55 g/cm3   
99+
0.53 g/cm3   
99+
Density When Liquid (at m.p.)
1.38 g/cm3   
99+
0.51 g/cm3   
99+
Tensile Strength
Not Available   
Not Available   
Viscosity
Not Available   
Not Available   
Vapor Pressure
  
  
Vapor Pressure at 1000 K
25.50 (Pa)   
3
109.00 (Pa)   
2
Elasticity properties
  
  
Shear Modulus
7.40 GPa   
99+
4.20 GPa   
99+
Bulk Modulus
17.00 GPa   
99+
11.00 GPa   
99+
Young's Modulus
20.00 GPa   
99+
4.90 GPa   
99+
Poisson Ratio
0.31   
13
Not Available   
Other Mechanical Properties
NA   
NA   
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
4.58   
99+
0.53   
99+
Magnetic Ordering
Diamagnetic   
Paramagnetic   
Electrical Properties
  
  
Electrical Property
Conductor   
Conductor   
Resistivity
33.60 nΩ·m   
99+
92.80 nΩ·m   
33
Electrical Conductivity
0.30 106/cm Ω   
6
0.11 106/cm Ω   
19
Electron Affinity
2.37 kJ/mol   
39
59.60 kJ/mol   
16
Thermal Properties
Specific Heat
0.63 J/(kg K)   
7
3.60 J/(kg K)   
1
Molar Heat Capacity
25.93 J/mol·K   
34
24.86 J/mol·K   
99+
Thermal Conductivity
201.00 W/m·K   
5
84.80 W/m·K   
20
Critical Temperature
Not Available   
3,223.00 K   
1
Thermal Expansion
22.30 µm/(m·K)   
19
46.00 µm/(m·K)   
7
Enthalpy
  
  
Enthalpy of Vaporization
150.00 kJ/mol   
99+
134.70 kJ/mol   
99+
Enthalpy of Fusion
8.54 kJ/mol   
99+
3.00 kJ/mol   
99+
Enthalpy of Atomization
184.00 kJ/mol   
99+
160.70 kJ/mol   
99+
Standard Molar Entropy
41.60 J/mol.K   
36
29.10 J/mol.K   
99+
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