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Titanium vs Curium

Titanium
Curium
Curium vs Titanium


Periodic Table
Symbol
Ti  
Cm  
Group Number
4  
14
3  
15
Period Number
4  
7  
Block
d block  
f block  
Element Family
Transition Metal  
Actinide  
CAS Number
7440326  
99+
7440519  
36
Space Group Name
P63/mmc  
-  
Space Group Number
194.00  
7
225.00  
3
Facts
Interesting Facts
  • The only metal which burns in Nitrogen is Titanium.
  • Titanium is also known as corrosion resistant metal.
  
  • Curium metal does not occur free in nature.
  • Curium metal is a synthetically produced metal.
  
Sources
Found in Minerals, Mining  
Bombarding Plutonium with Helium Ions  
History
  
  
Who Discovered
W. Gregor & J. Berzelius  
Glenn T. Seaborg, Ralph A. James, Albert Ghiorso  
Discovery
In 1791  
In 1944  
Abundance
  
  
Abundance In Universe
0.00 %  
10
0.00 %  
35
Abundance In Sun
0.00 %  
9
0.00 %  
30
Abundance In Meteorites
0.05 %  
11
0.00 %  
99+
Abundance In Earth's Crust
0.66 %  
7
0.00 %  
99+
Abundance In Oceans
0.00 %  
15
-  
Abundance In Humans
0.57 %  
2
0.00 %  
24
Uses
Uses & Benefits
  • Its alloys are used in spacecraft, aircraft and ammunition industry.
  • Its pipes are used in distillation plants, submarines, hulls of big ships, etc.
  
  • Curium metal is used to provide power to electrical equipment for space missions.
  
Industrial Uses
Aerospace Industry, Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry  
-  
Medical Uses
Dentistry, Surgical Instruments Manufacturing  
-  
Other Uses
Alloys, Jewellery, Sculptures, Statues  
Research Purposes  
Biological Properties
  
  
Toxicity
Non Toxic  
-  
Present in Human Body
Yes  
No  
In Blood
0.05 Blood/mg dm-3  
16
0.00 Blood/mg dm-3  
40
In Bone
0.60 p.p.m.  
21
0.00 p.p.m.  
99+
Physical
Melting Point
1,660.00 °C  
18
1,340.00 °C  
34
Boiling Point
3,287.00 °C  
23
3,110.00 °C  
31
Appearance
  
  
Physical State
Solid  
Solid  
Color
Silvery Gray-White  
Silver  
Luster
Metallic  
Metallic  
Hardness
  
  
Mohs Hardness
6.00  
6
2.00  
17
Brinell Hardness
716.00 MPa  
16
320.00 MPa  
40
Vickers Hardness
830.00 MPa  
21
461.00 MPa  
37
Speed of Sound
5,090.00 m/s  
13
2,260.00 m/s  
99+
Optical Properties
  
  
Refractive Index
2.40  
7
1.30  
99+
Reflectivity
56.00 %  
26
60.00 %  
23
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Ti  
Cm  
Isotopes
  
  
Known Isotopes
23  
16
15  
24
Electronegativity
  
  
Pauling Electronegativity
1.54  
27
1.30  
33
Sanderson Electronegativity
1.09  
39
1.30  
25
Allred Rochow Electronegativity
1.32  
24
1.20  
28
Mulliken-Jaffe Electronegativity
1.54  
24
1.30  
33
Allen Electronegativity
1.38  
36
1.30  
40
Electropositivity
  
  
Pauling Electropositivity
2.46  
28
2.70  
22
Ionization Energies
  
  
1st Energy Level
658.80 kJ/mol  
39
581.00 kJ/mol  
99+
2nd Energy Level
1,309.80 kJ/mol  
99+
1,196.00 kJ/mol  
99+
3rd Energy Level
2,652.50 kJ/mol  
99+
2,026.00 kJ/mol  
99+
4th Energy Level
4,174.60 kJ/mol  
99+
3,550.00 kJ/mol  
99+
5th Energy Level
9,581.00 kJ/mol  
5
5,810.00 kJ/mol  
99+
6th Energy Level
11,533.00 kJ/mol  
8
5,810.00 kJ/mol  
99+
7th Energy level
13,590.00 kJ/mol  
6
5,810.00 kJ/mol  
99+
8th Energy Level
16,440.00 kJ/mol  
8
5,810.00 kJ/mol  
99+
9th Energy Level
18,530.00 kJ/mol  
11
6,690.00 kJ/mol  
37
10th Energy Level
20,833.00 kJ/mol  
15
5,810.00 kJ/mol  
99+
11th Energy Level
25,575.00 kJ/mol  
14
5,810.00 kJ/mol  
99+
12th Energy Level
28,125.00 kJ/mol  
37
58,100.00 kJ/mol  
19
13th Energy Level
76,015.00 kJ/mol  
1
5,810.00 kJ/mol  
99+
14th Energy Level
83,280.00 kJ/mol  
2
5,810.00 kJ/mol  
40
15th Energy Level
90,880.00 kJ/mol  
4
58,100.00 kJ/mol  
99+
16th Energy Level
100,700.00 kJ/mol  
4
58,100.00 kJ/mol  
99+
17th Energy Level
109,100.00 kJ/mol  
5
581.00 kJ/mol  
99+
18th Energy Level
117,800.00 kJ/mol  
6
5,810.00 kJ/mol  
99+
19th Energy Level
129,900.00 kJ/mol  
7
581.00 kJ/mol  
99+
20th Energy Level
137,530.00 kJ/mol  
9
581.00 kJ/mol  
99+
21st Energy Level
658.80 kJ/mol  
99+
5,810.00 kJ/mol  
20
22nd Energy Level
658.00 kJ/mol  
31
581.00 kJ/mol  
99+
23rd Energy Level
658.80 kJ/mol  
99+
5,810.00 kJ/mol  
20
24th Energy Level
658.80 kJ/mol  
30
581.00 kJ/mol  
99+
25th Energy Level
658.80 kJ/mol  
32
581.00 kJ/mol  
99+
26th Energy Level
658.80 kJ/mol  
31
581.00 kJ/mol  
99+
27th Energy Level
658.80 kJ/mol  
32
581.00 kJ/mol  
99+
28th Energy Level
658.80 kJ/mol  
37
581.00 kJ/mol  
99+
29th Energy Level
658.80 kJ/mol  
38
581.00 kJ/mol  
99+
30th Energy Level
658.80 kJ/mol  
34
581.00 kJ/mol  
99+
Electrochemical Equivalent
0.45 g/amp-hr  
99+
3.07 g/amp-hr  
19
Electron Work Function
4.33 eV  
24
4.50 eV  
19
Other Chemical Properties
Chemical Stability, Ionization  
Ionization, Radioactive Isotopes  
Atomic
Atomic Number
22  
99+
96  
22
Electron Configuration
[Ar] 3d2 4s2  
[Rn] 5f7 6d1 7s2  
Crystal Structure
Hexagonal Close Packed (HCP)  
Double Hexagonal Close Packed (DHCP)  
Crystal Lattice
HCP-Crystal-Structure-of-Titanium.jpg#100  
DHCP-Crystal-Structure-of-Curium.jpg#100  
Atom
  
  
Number of Protons
22  
99+
96  
22
Number of Neutrons
26  
99+
151  
11
Number of Electrons
22  
99+
96  
22
Radius of an Atom
  
  
Atomic Radius
147.00 pm  
36
174.00 pm  
22
Covalent Radius
160.00 pm  
32
169.00 pm  
28
Van der Waals Radius
200.00 pm  
35
200.00 pm  
35
Atomic Weight
47.87 amu  
99+
247.00 amu  
18
Atomic Volume
10.64 cm3/mol  
99+
18.28 cm3/mol  
38
Adjacent Atomic Numbers
  
  
Previous Element
Scandium
  
Americium
  
Next Element
Vanadium
  
Berkelium
  
Valence Electron Potential
95.20 (-eV)  
10
44.50 (-eV)  
39
Lattice Constant
295.08 pm  
99+
336.25 pm  
99+
Lattice Angles
π/2, π/2, 2 π/3  
-  
Lattice C/A Ratio
1.59  
30
1.67  
11
Mechanical
Density
  
  
Density At Room Temperature
4.51 g/cm3  
99+
13.51 g/cm3  
26
Density When Liquid (at m.p.)
4.11 g/cm3  
99+
13.85 g/cm3  
25
Tensile Strength
434.00 MPa  
10
350.00 MPa  
12
Viscosity
0.00  
22
0.00  
25
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
37
0.00 (Pa)  
22
Vapor Pressure at 2000 K
0.98 (Pa)  
14
0.00 (Pa)  
24
Elasticity properties
  
  
Shear Modulus
44.00 GPa  
17
32.00 GPa  
24
Bulk Modulus
110.00 GPa  
15
40.00 GPa  
38
Young's Modulus
116.00 GPa  
20
0.00 GPa  
99+
Poisson Ratio
0.32  
12
0.35  
9
Other Mechanical Properties
Ductile  
-  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
4.51  
99+
13.51  
28
Magnetic Ordering
Paramagnetic  
Antiferromagnetic  
Permeability
0.00 H/m  
17
0.00 H/m  
17
Susceptibility
0.00  
24
0.00  
24
Electrical Properties
  
  
Electrical Property
Poor Conductor  
-  
Resistivity
420.00 nΩ·m  
12
1.25 nΩ·m  
99+
Electrical Conductivity
0.02 106/cm Ω  
99+
0.13 106/cm Ω  
19
Electron Affinity
7.60 kJ/mol  
99+
0.00 kJ/mol  
99+
Thermal
Specific Heat
0.52 J/(kg K)  
9
0.10 J/(kg K)  
99+
Molar Heat Capacity
25.06 J/mol·K  
99+
27.50 J/mol·K  
21
Thermal Conductivity
21.90 W/m·K  
99+
11.00 W/m·K  
99+
Critical Temperature
1,941.00 K  
21
1,340.00 K  
99+
Thermal Expansion
8.60 µm/(m·K)  
99+
11.60 µm/(m·K)  
99+
Enthalpy
  
  
Enthalpy of Vaporization
429.00 kJ/mol  
20
331.60 kJ/mol  
40
Enthalpy of Fusion
15.48 kJ/mol  
19
15.00 kJ/mol  
22
Enthalpy of Atomization
468.60 kJ/mol  
20
-  
Standard Molar Entropy
27.30 J/mol.K  
99+
52.50 J/mol.K  
36
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