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Zirconium vs Platinum


Platinum vs Zirconium


Periodic Table

Symbol
Zr  
Pt  

Group Number
4  
14
10  
8

Period Number
5  
6  

Block
d block  
d block  

Element Family
Transition Metal  
Transition Metal  

CAS Number
7440677  
23
7440064  
99+

Space Group Name
P63/mmc  
Fm_ 3m  

Space Group Number
194.00  
7
225.00  
3

Facts

Interesting Facts
  • Zirconium metal can resist to weak acids.
  • Zirconium metal reacts with oxygen and nitrogen in the atmosphere.
  
  • Platinum is the rarest metal from the Precious metal categories..
  • Commercially Platinum is produced as a byproduct in ores of nickel.
  

Sources
Found in Minerals, Mining, Ores of Minerals  
Mining, Ores of metals, Ores of Minerals  

History
  
  

Who Discovered
Martin Heinrich Klaproth  
Antonio de Ulloa  

Discovery
In 1789  
In 1735  

Abundance
  
  

Abundance In Universe
0.00 %  
14
0.00 %  
20

Abundance In Sun
0.00 %  
16
0.00 %  
19

Abundance In Meteorites
0.00 %  
17
0.00 %  
25

Abundance In Earth's Crust
0.01 %  
14
0.00 %  
99+

Abundance In Oceans
0.00 %  
23
-  

Abundance In Humans
0.00 %  
18
0.00 %  
24

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.
  
  • Platinum metal is mainly used in jewellery.
  • Platinum is used as an industrial catalyst in production of nitric acid, silicone and benzene.
  

Industrial Uses
Aerospace Industry, Ammunition Industry  
Aerospace Industry, Chemical Industry  

Medical Uses
-  
Dentistry, Pharmaceutical Industry, Surgical Instruments Manufacturing  

Other Uses
Alloys, Nuclear Research, Research Purposes  
Alloys, Bullion, Coinage, Jewellery, Sculptures, Statues  

Biological Properties
  
  

Toxicity
-  
Non Toxic  

Present in Human Body
Yes  
No  

In Blood
0.01 Blood/mg dm-3  
21
0.00 Blood/mg dm-3  
37

In Bone
0.10 p.p.m.  
28
0.00 p.p.m.  
99+

Physical

Melting Point
1,852.00 °C  
15
1,772.00 °C  
16

Boiling Point
4,377.00 °C  
11
3,827.00 °C  
15

Appearance
  
  

Physical State
Solid  
Solid  

Color
Silvery White  
Silvery White  

Luster
Lustrous  
Metallic  

Hardness
  
  

Mohs Hardness
5.00  
8
3.50  
12

Brinell Hardness
638.00 MPa  
21
300.00 MPa  
99+

Vickers Hardness
820.00 MPa  
22
400.00 MPa  
99+

Speed of Sound
3,800.00 m/s  
27
2,800.00 m/s  
99+

Optical Properties
  
  

Refractive Index
2.15  
10
2.41  
6

Reflectivity
70.00 %  
13
73.00 %  
10

Allotropes
No  
No  

α Allotropes
-  
-  

β Allotropes
-  
-  

γ Allotropes
-  
-  

Chemical

Chemical Formula
Zr  
Pt  

Isotopes
  
  

Known Isotopes
24  
15
35  
4

Electronegativity
  
  

Pauling Electronegativity
1.33  
31
2.28  
4

Sanderson Electronegativity
0.90  
99+
2.28  
5

Allred Rochow Electronegativity
1.22  
27
1.44  
18

Mulliken-Jaffe Electronegativity
1.33  
32
2.20  
6

Allen Electronegativity
1.32  
39
1.72  
19

Electropositivity
  
  

Pauling Electropositivity
2.67  
24
1.72  
99+

Ionization Energies
  
  

1st Energy Level
640.10 kJ/mol  
99+
870.00 kJ/mol  
10

2nd Energy Level
1,270.00 kJ/mol  
99+
1,791.00 kJ/mol  
22

3rd Energy Level
2,218.00 kJ/mol  
99+
2,277.00 kJ/mol  
99+

4th Energy Level
3,313.00 kJ/mol  
99+
8,702.00 kJ/mol  
6

5th Energy Level
7,752.00 kJ/mol  
16
8,702.00 kJ/mol  
9

6th Energy Level
9,500.00 kJ/mol  
21
8,700.00 kJ/mol  
27

7th Energy level
6,400.00 kJ/mol  
99+
8,700.00 kJ/mol  
23

8th Energy Level
6,400.00 kJ/mol  
99+
8,700.00 kJ/mol  
23

9th Energy Level
6,400.00 kJ/mol  
40
5,660.00 kJ/mol  
99+

10th Energy Level
5,730.00 kJ/mol  
99+
8,700.00 kJ/mol  
24

11th Energy Level
6,406.00 kJ/mol  
99+
8,700.00 kJ/mol  
21

12th Energy Level
6,400.00 kJ/mol  
99+
8,700.00 kJ/mol  
99+

13th Energy Level
6,400.00 kJ/mol  
36
8,700.00 kJ/mol  
16

14th Energy Level
640.00 kJ/mol  
99+
870.00 kJ/mol  
99+

15th Energy Level
64,000.00 kJ/mol  
36
87,000.00 kJ/mol  
9

16th Energy Level
64,000.00 kJ/mol  
27
870.00 kJ/mol  
99+

17th Energy Level
640.10 kJ/mol  
99+
870.00 kJ/mol  
27

18th Energy Level
6,400.00 kJ/mol  
38
8,700.00 kJ/mol  
16

19th Energy Level
640.00 kJ/mol  
99+
870.00 kJ/mol  
25

20th Energy Level
640.00 kJ/mol  
39
870.00 kJ/mol  
15

21st Energy Level
640.10 kJ/mol  
99+
870.00 kJ/mol  
38

22nd Energy Level
640.00 kJ/mol  
33
870.00 kJ/mol  
13

23rd Energy Level
640.10 kJ/mol  
99+
870.10 kJ/mol  
39

24th Energy Level
640.00 kJ/mol  
35
870.00 kJ/mol  
9

25th Energy Level
640.10 kJ/mol  
37
870.00 kJ/mol  
7

26th Energy Level
640.10 kJ/mol  
36
870.00 kJ/mol  
7

27th Energy Level
640.10 kJ/mol  
38
870.10 kJ/mol  
6

28th Energy Level
640.10 kJ/mol  
99+
870.10 kJ/mol  
9

29th Energy Level
640.10 kJ/mol  
99+
870.00 kJ/mol  
10

30th Energy Level
640.10 kJ/mol  
39
870.00 kJ/mol  
7

Electrochemical Equivalent
0.85 g/amp-hr  
99+
1.82 g/amp-hr  
39

Electron Work Function
4.05 eV  
34
5.65 eV  
4

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

Atomic

Atomic Number
40  
99+
78  
38

Electron Configuration
[Kr] 4d2 5s2  
[Xe] 4f14 5d9 6s1  

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

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

Atom
  
  

Number of Protons
40  
99+
78  
38

Number of Neutrons
51  
99+
117  
25

Number of Electrons
40  
99+
78  
38

Radius of an Atom
  
  

Atomic Radius
160.00 pm  
29
139.00 pm  
99+

Covalent Radius
175.00 pm  
25
136.00 pm  
99+

Van der Waals Radius
200.00 pm  
35
175.00 pm  
99+

Atomic Weight
91.22 amu  
99+
47.87 amu  
99+

Atomic Volume
14.10 cm3/mol  
99+
9.09 cm3/mol  
99+

Adjacent Atomic Numbers
  
  

Previous Element
Yttrium
  
Iridium
  

Next Element
Niobium
  
Gold
  

Valence Electron Potential
80.00 (-eV)  
18
392.42 (-eV)  
1

Lattice Constant
323.20 pm  
99+
392.42 pm  
27

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

Lattice C/A Ratio
1.59  
25
1.56  
99+

Mechanical

Density
  
  

Density At Room Temperature
6.52 g/cm3  
99+
21.45 g/cm3  
11

Density When Liquid (at m.p.)
5.80 g/cm3  
99+
19.77 g/cm3  
12

Tensile Strength
330.00 MPa  
14
125.00 MPa  
26

Viscosity
0.00  
12
0.00  
16

Vapor Pressure
  
  

Vapor Pressure at 1000 K
0.00 (Pa)  
37
0.00 (Pa)  
16

Vapor Pressure at 2000 K
0.00 (Pa)  
21
0.07 (Pa)  
18

Elasticity properties
  
  

Shear Modulus
33.00 GPa  
23
61.00 GPa  
14

Bulk Modulus
91.10 GPa  
18
230.00 GPa  
6

Young's Modulus
88.00 GPa  
24
168.00 GPa  
15

Poisson Ratio
0.34  
10
0.38  
6

Other Mechanical Properties
Ductile, Malleable  
Ductile, Malleable  

Magnetic

Magnetic Characteristics
  
  

Specific Gravity
6.51  
99+
21.45  
13

Magnetic Ordering
Paramagnetic  
Paramagnetic  

Permeability
0.00 H/m  
17
0.00 H/m  
14

Susceptibility
0.00  
24
0.00  
20

Electrical Properties
  
  

Electrical Property
Conductor  
Conductor  

Resistivity
421.00 nΩ·m  
11
105.00 nΩ·m  
30

Electrical Conductivity
0.02 106/cm Ω  
99+
0.10 106/cm Ω  
26

Electron Affinity
41.10 kJ/mol  
32
205.30 kJ/mol  
2

Thermal

Specific Heat
0.27 J/(kg K)  
19
0.13 J/(kg K)  
40

Molar Heat Capacity
25.36 J/mol·K  
99+
25.86 J/mol·K  
99+

Thermal Conductivity
22.60 W/m·K  
99+
71.60 W/m·K  
24

Critical Temperature
2,128.00 K  
17
2,041.00 K  
19

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

Enthalpy
  
  

Enthalpy of Vaporization
581.60 kJ/mol  
11
510.50 kJ/mol  
15

Enthalpy of Fusion
20.90 kJ/mol  
11
19.70 kJ/mol  
12

Enthalpy of Atomization
598.00 kJ/mol  
12
565.00 kJ/mol  
15

Standard Molar Entropy
39.00 J/mol.K  
99+
41.60 J/mol.K  
99+

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