Symbol
Zr
  
Ni
  
Period Number
5
  
4
  
Block
d block
  
d block
  
Element Family
Transition Metal
  
Transition Metal
  
Space Group Name
P63/mmc
  
Fm_ 3m
  
Interesting Facts
- Zirconium metal can resist to weak acids.
- Zirconium metal reacts with oxygen and nitrogen in the atmosphere.
  
- Zinc metal found (obtain) in many forms like granules, foil, dust and in a powder form.
- After iron, Zinc metal the second most abundant element in the earth crust.
  
Sources
Found in Minerals, Mining, Ores of Minerals
  
Found in Minerals, Mining, Ores of Minerals
  
History
  
  
Who Discovered
Martin Heinrich Klaproth
  
Axel Fredrik Cronstedt
  
Discovery
In 1789
  
In 1751
  
Abundance
  
  
Abundance In Sun
~0.000004 %
  
16
Abundance In Earth's Crust
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 has corrosion resistance and hence it is used to plate other metals.
- Its alloys are very useful; Nichrome alloy is used in the hot coil of toasters and electric oven.
  
Industrial Uses
Aerospace Industry, Ammunition Industry
  
Automobile Industry, Electrical Industry, Electronic Industry
  
Medical Uses
NA
  
NA
  
Other Uses
Alloys, Nuclear Research, Research Purposes
  
Alloys
  
Biological Properties
  
  
Toxicity
NA
  
Toxic
  
Present in Human Body
Yes
  
Yes
  
In Blood
0.01 Blood/mg dm-3
  
21
0.05 Blood/mg dm-3
  
17
In Bone
0.10 p.p.m.
  
23
0.70 p.p.m.
  
18
Melting Point
1,852.00 °C
  
15
1,453.00 °C
  
31
Boiling Point
4,377.00 °C
  
11
2,732.00 °C
  
38
Appearance
  
  
Physical State
Solid
  
Solid
  
Color
Silvery White
  
Silver
  
Luster
Lustrous
  
Metallic
  
Hardness
  
  
Speed of Sound
3,800.00 m/s
  
20
4,900.00 m/s
  
12
Optical Properties
  
  
Reflectivity
Not Available
  
Allotropes
No
  
No
  
α Allotropes
Not Available
  
Not Available
  
β Allotropes
Not Available
  
Not Available
  
γ Allotropes
Not Available
  
Not Available
  
Chemical Formula
Zr
  
Ni
  
Isotopes
  
  
Electronegativity
  
  
Pauling Electronegativity
Sanderson Electronegativity
Allred Rochow Electronegativity
Electropositivity
  
  
Pauling Electropositivity
Ionization Energies
  
  
1st Energy Level
640.10 kJ/mol
  
99+
737.10 kJ/mol
  
25
2nd Energy Level
1,270.00 kJ/mol
  
99+
1,753.00 kJ/mol
  
25
3rd Energy Level
2,218.00 kJ/mol
  
99+
3,395.00 kJ/mol
  
17
4th Energy Level
3,313.00 kJ/mol
  
99+
5,300.00 kJ/mol
  
15
5th Energy Level
7,752.00 kJ/mol
  
10
7,339.00 kJ/mol
  
15
6th Energy Level
9,500.00 kJ/mol
  
15
10,400.00 kJ/mol
  
9
7th Energy level
Not Available
  
12,800.00 kJ/mol
  
10
8th Energy Level
Not Available
  
15,600.00 kJ/mol
  
10
9th Energy Level
Not Available
  
18,600.00 kJ/mol
  
10
10th Energy Level
Not Available
  
21,670.00 kJ/mol
  
14
11th Energy Level
Not Available
  
30,970.00 kJ/mol
  
7
12th Energy Level
Not Available
  
34,000.00 kJ/mol
  
7
13th Energy Level
Not Available
  
37,100.00 kJ/mol
  
7
14th Energy Level
Not Available
  
41,500.00 kJ/mol
  
8
15th Energy Level
Not Available
  
44,800.00 kJ/mol
  
10
16th Energy Level
Not Available
  
48,100.00 kJ/mol
  
12
17th Energy Level
Not Available
  
55,101.00 kJ/mol
  
11
18th Energy Level
Not Available
  
58,570.00 kJ/mol
  
12
19th Energy Level
Not Available
  
148,700.00 kJ/mol
  
1
20th Energy Level
Not Available
  
159,000.00 kJ/mol
  
3
21st Energy Level
Not Available
  
169,400.00 kJ/mol
  
3
22nd Energy Level
Not Available
  
182,700.00 kJ/mol
  
2
23rd Energy Level
Not Available
  
194,000.00 kJ/mol
  
2
Electrochemical Equivalent
0.85 g/amp-hr
  
99+
1.10 g/amp-hr
  
99+
Other Chemical Properties
Anti Corrosion, Flammable, Ionization, Radioactive Isotopes, Solubility
  
Anti Corrosion, Ionization, Radioactive Isotopes
  
Electron Configuration
[Kr] 4d2 5s2
  
[Ar] 3d8 4s2 Or [Ar] 3d9 4s1
  
Crystal Structure
Hexagonal Close Packed (HCP)
  
Face Centered Cubic (FCC)
  
Crystal Lattice
HCP-Crystal-Structure-of-Zirconium.jpg#100
  
FCC-Crystal-Structure-of-Nickel.jpg#100
  
Atom
  
  
Radius of an Atom
  
  
Atomic Volume
14.10 cm3/mol
  
36
6.59 cm3/mol
  
99+
Adjacent Atomic Numbers
  
  
Valence Electron Potential
80.00 (-eV)
  
18
42.00 (-eV)
  
99+
Lattice Angles
π/2, π/2, 2 π/3
  
π/2, π/2, π/2
  
Lattice C/A Ratio
Not Available
  
Density
  
  
Density At Room Temperature
6.52 g/cm3
  
99+
8.91 g/cm3
  
99+
Density When Liquid (at m.p.)
5.80 g/cm3
  
99+
Viscosity
Not Available
  
Not Available
  
Vapor Pressure
  
  
Vapor Pressure at 1000 K
Not Available
  
Elasticity properties
  
  
Other Mechanical Properties
Ductile, Malleable
  
Ductile
  
Magnetic Characteristics
  
  
Magnetic Ordering
Paramagnetic
  
Ferromagnetic
  
Permeability
Not Available
  
Susceptibility
Not Available
  
Electrical Properties
  
  
Electrical Property
Conductor
  
Conductor
  
Resistivity
421.00 nΩ·m
  
11
Electrical Conductivity
0.02 106/cm Ω
  
99+
0.14 106/cm Ω
  
13
Electron Affinity
41.10 kJ/mol
  
27
112.00 kJ/mol
  
6
Specific Heat
0.27 J/(kg K)
  
19
0.44 J/(kg K)
  
13
Molar Heat Capacity
25.36 J/mol·K
  
99+
26.07 J/mol·K
  
31
Thermal Conductivity
22.60 W/m·K
  
99+
90.90 W/m·K
  
18
Critical Temperature
Not Available
  
Not Available
  
Thermal Expansion
5.70 µm/(m·K)
  
99+
13.40 µm/(m·K)
  
28
Enthalpy
  
  
Enthalpy of Vaporization
581.60 kJ/mol
  
9
371.80 kJ/mol
  
20
Enthalpy of Fusion
20.90 kJ/mol
  
11
17.57 kJ/mol
  
14
Enthalpy of Atomization
598.00 kJ/mol
  
10
422.60 kJ/mol
  
17
Standard Molar Entropy
39.00 J/mol.K
  
39
29.90 J/mol.K
  
99+