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Zirconium Calcium Comparison


Calcium Zirconium comparison


Periodic Table

Symbol
Zr   
Ca   

Group Number
4   
14
2   
16

Period Number
5   
4   

Block
d block   
s block   

Element Family
Transition Metal   
Alkaline Earth   

CAS Number
7440677   
23
7440702   
21

Space Group Name
P63/mmc   
Fm_ 3m   

Space Group Number
194.00   
5
225.00   
2

Facts

Interesting Facts
  • Zirconium metal can resist to weak acids.
  • Zirconium metal reacts with oxygen and nitrogen in the atmosphere.
  
  • 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.
  

Sources
Found in Minerals, Mining, Ores of Minerals   
Earth's crust, Found in Minerals, Mining, Ores of Minerals   

History
  
  

Who Discovered
Martin Heinrich Klaproth   
Humphry Davy   

Discovery
In 1789   
In 1808   

Abundance
  
  

Abundance In Universe
5 * 10-6 %   
13
7 * 10-3 %   
3

Abundance In Sun
~0.000004 %   
16
~0.007 %   
4

Abundance In Meteorites
0.00 %   
17
1.10 %   
4

Abundance In Earth's Crust
0.01 %   
14
5.00 %   
3

Abundance In Oceans
0.00 %   
23
0.00 %   
5

Abundance In Humans
0.00 %   
15
1.40 %   
1

Uses

Uses & Benefits
  • As this metal does not absorb neutrons; It is used in nuclear power stations.
  • Its oxide is used in ultra strong ceramics. It is also used in manufacturing Crucibles.
  
  • 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.
  

Industrial Uses
Aerospace Industry, Ammunition Industry   
Chemical Industry   

Medical Uses
NA   
Dentistry, Pharmaceutical Industry   

Other Uses
Alloys, Nuclear Research, Research Purposes   
Alloys   

Biological Properties
  
  

Toxicity
NA   
Non Toxic   

Present in Human Body
Yes   
Yes   

In Blood
0.01 Blood/mg dm-3   
21
60.50 Blood/mg dm-3   
4

In Bone
0.10 p.p.m.   
23
170,000.00 p.p.m.   
1

Physical Properties

Melting Point
1,852.00 °C   
15
839.00 °C   
99+

Boiling Point
4,377.00 °C   
11
1,484.00 °C   
99+

Appearance
  
  

Physical State
Solid   
Solid   

Color
Silvery White   
Gray   

Luster
Lustrous   
NA   

Hardness
  
  

Mohs Hardness
5.00   
8
1.75   
17

Brinell Hardness
638.00 MPa   
19
170.00 MPa   
99+

Vickers Hardness
820.00 MPa   
15
Not Available   

Speed of Sound
3,800.00 m/s   
20
3,810.00 m/s   
19

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
Zr   
Ca   

Isotopes
  
  

Known Isotopes
24   
15
19   
20

Electronegativity
  
  

Pauling Electronegativity
1.33   
30
1.00   
99+

Sanderson Electronegativity
0.90   
25
0.95   
24

Allred Rochow Electronegativity
1.22   
26
1.04   
34

Mulliken-Jaffe Electronegativity
Not Available   
1.08   
17

Allen Electronegativity
1.32   
34
1.03   
39

Electropositivity
  
  

Pauling Electropositivity
2.67   
24
3.00   
9

Ionization Energies
  
  

1st Energy Level
640.10 kJ/mol   
99+
589.80 kJ/mol   
99+

2nd Energy Level
1,270.00 kJ/mol   
99+
1,145.40 kJ/mol   
99+

3rd Energy Level
2,218.00 kJ/mol   
99+
4,912.40 kJ/mol   
7

4th Energy Level
3,313.00 kJ/mol   
99+
6,491.00 kJ/mol   
7

5th Energy Level
7,752.00 kJ/mol   
10
8,153.00 kJ/mol   
7

6th Energy Level
9,500.00 kJ/mol   
15
10,496.00 kJ/mol   
8

7th Energy level
Not Available   
12,270.00 kJ/mol   
12

8th Energy Level
Not Available   
14,206.00 kJ/mol   
15

9th Energy Level
Not Available   
18,191.00 kJ/mol   
12

10th Energy Level
Not Available   
20,385.00 kJ/mol   
16

11th Energy Level
Not Available   
57,110.00 kJ/mol   
3

12th Energy Level
Not Available   
63,410.00 kJ/mol   
3

13th Energy Level
Not Available   
70,110.00 kJ/mol   
3

14th Energy Level
Not Available   
78,890.00 kJ/mol   
4

15th Energy Level
Not Available   
86,310.00 kJ/mol   
5

16th Energy Level
Not Available   
94,000.00 kJ/mol   
6

17th Energy Level
Not Available   
104,900.00 kJ/mol   
7

18th Energy Level
Not Available   
111,711.00 kJ/mol   
8

Electrochemical Equivalent
0.85 g/amp-hr   
99+
0.75 g/amp-hr   
99+

Electron Work Function
4.05 eV   
26
2.87 eV   
38

Other Chemical Properties
Anti Corrosion, Flammable, Ionization, Radioactive Isotopes, Solubility   
Chemical Stability, Flammability, Ionization, Solubility   

Atomic Properties

Atomic Number
40   
99+
20   
99+

Electron Configuration
[Kr] 4d2 5s2   
[Ar] 4s2   

Crystal Structure
Hexagonal Close Packed (HCP)   
Face Centered Cubic (FCC)   

Crystal Lattice
HCP-Crystal-Structure-of-Zirconium.jpg#100   
FCC-Crystal-Structure-of-Calcium.jpg#100   

Atom
  
  

Number of Protons
40   
99+
20   
99+

Number of Neutrons
51   
99+
20   
99+

Number of Electrons
40   
99+
20   
99+

Radius of an Atom
  
  

Atomic Radius
160.00 pm   
27
197.00 pm   
6

Covalent Radius
175.00 pm   
23
176.00 pm   
22

Van der Waals Radius
200.00 pm   
28
231.00 pm   
19

Atomic Weight
91.22 amu   
99+
40.08 amu   
99+

Atomic Volume
14.10 cm3/mol   
36
29.90 cm3/mol   
7

Adjacent Atomic Numbers
  
  

Previous Element
Yttrium
  
Potassium
  

Next Element
Niobium
  
Scandium
  

Valence Electron Potential
80.00 (-eV)   
18
29.00 (-eV)   
99+

Lattice Constant
323.20 pm   
99+
558.84 pm   
9

Lattice Angles
π/2, π/2, 2 π/3   
π/2, π/2, π/2   

Lattice C/A Ratio
1.59   
8
Not Available   

Mechanical Properties

Density
  
  

Density At Room Temperature
6.52 g/cm3   
99+
1.55 g/cm3   
99+

Density When Liquid (at m.p.)
5.80 g/cm3   
99+
1.38 g/cm3   
99+

Tensile Strength
330.00 MPa   
12
Not Available   

Viscosity
Not Available   
Not Available   

Vapor Pressure
  
  

Vapor Pressure at 1000 K
Not Available   
25.50 (Pa)   
3

Vapor Pressure at 2000 K
0.00 (Pa)   
21
Not Available   

Elasticity properties
  
  

Shear Modulus
33.00 GPa   
20
7.40 GPa   
99+

Bulk Modulus
91.10 GPa   
17
17.00 GPa   
99+

Young's Modulus
88.00 GPa   
22
20.00 GPa   
99+

Poisson Ratio
0.34   
10
0.31   
13

Other Mechanical Properties
Ductile, Malleable   
NA   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
6.51   
99+
4.58   
99+

Magnetic Ordering
Paramagnetic   
Diamagnetic   

Electrical Properties
  
  

Electrical Property
Conductor   
Conductor   

Resistivity
421.00 nΩ·m   
11
33.60 nΩ·m   
99+

Electrical Conductivity
0.02 106/cm Ω   
99+
0.30 106/cm Ω   
6

Electron Affinity
41.10 kJ/mol   
27
2.37 kJ/mol   
39

Thermal Properties

Specific Heat
0.27 J/(kg K)   
19
0.63 J/(kg K)   
7

Molar Heat Capacity
25.36 J/mol·K   
99+
25.93 J/mol·K   
34

Thermal Conductivity
22.60 W/m·K   
99+
201.00 W/m·K   
5

Critical Temperature
Not Available   
Not Available   

Thermal Expansion
5.70 µm/(m·K)   
99+
22.30 µm/(m·K)   
19

Enthalpy
  
  

Enthalpy of Vaporization
581.60 kJ/mol   
9
150.00 kJ/mol   
99+

Enthalpy of Fusion
20.90 kJ/mol   
11
8.54 kJ/mol   
99+

Enthalpy of Atomization
598.00 kJ/mol   
10
184.00 kJ/mol   
99+

Standard Molar Entropy
39.00 J/mol.K   
39
41.60 J/mol.K   
36

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