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Titanium vs Strontium

Titanium
Strontium
Strontium vs Titanium


Periodic Table
Symbol
Ti  
Sr  
Group Number
4  
14
2  
16
Period Number
4  
5  
Block
d block  
s block  
Element Family
Transition Metal  
Alkaline Earth  
CAS Number
7440326  
99+
7440246  
99+
Space Group Name
P63/mmc  
Fm_ 3m  
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.
  
  • Strontium element is softer than Calcium.
  • Silvery Strontium turns yellow, if exposed to air.
  
Sources
Found in Minerals, Mining  
Found in Minerals, Mining, Ores of Minerals  
History
  
  
Who Discovered
W. Gregor & J. Berzelius  
William Cruickshank  
Discovery
In 1791  
In 1787  
Abundance
  
  
Abundance In Universe
0.00 %  
10
0.00 %  
15
Abundance In Sun
0.00 %  
9
0.00 %  
15
Abundance In Meteorites
0.05 %  
11
0.00 %  
15
Abundance In Earth's Crust
0.66 %  
7
0.04 %  
10
Abundance In Oceans
0.00 %  
15
0.00 %  
4
Abundance In Humans
0.57 %  
2
0.00 %  
8
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.
  
  • Strontium metal is used to producing ferrite magnets as well as refining zinc.
  • By-product of nuclear reactors called Strontium-90 is a radioactive isotope; it is absorbed by tissues and destroys bone marrow and cancer growth.
  
Industrial Uses
Aerospace Industry, Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry  
Ammunition Industry, Chemical Industry  
Medical Uses
Dentistry, Surgical Instruments Manufacturing  
-  
Other Uses
Alloys, Jewellery, Sculptures, Statues  
Alloys  
Biological Properties
  
  
Toxicity
Non Toxic  
Non Toxic  
Present in Human Body
Yes  
Yes  
In Blood
0.05 Blood/mg dm-3  
16
0.03 Blood/mg dm-3  
19
In Bone
0.60 p.p.m.  
21
140.00 p.p.m.  
7
Physical
Melting Point
1,660.00 °C  
18
769.00 °C  
99+
Boiling Point
3,287.00 °C  
23
1,384.00 °C  
99+
Appearance
  
  
Physical State
Solid  
Solid  
Color
Silvery Gray-White  
Silvery White  
Luster
Metallic  
Metallic  
Hardness
  
  
Mohs Hardness
6.00  
6
1.50  
19
Brinell Hardness
716.00 MPa  
16
110.00 MPa  
99+
Vickers Hardness
830.00 MPa  
21
15.00 MPa  
99+
Speed of Sound
5,090.00 m/s  
13
4,170.00 m/s  
23
Optical Properties
  
  
Refractive Index
2.40  
7
1.43  
39
Reflectivity
56.00 %  
26
65.00 %  
18
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Ti  
Sr  
Isotopes
  
  
Known Isotopes
23  
16
27  
12
Electronegativity
  
  
Pauling Electronegativity
1.54  
27
0.95  
99+
Sanderson Electronegativity
1.09  
39
0.72  
99+
Allred Rochow Electronegativity
1.32  
24
0.99  
38
Mulliken-Jaffe Electronegativity
1.54  
24
1.00  
99+
Allen Electronegativity
1.38  
36
0.96  
99+
Electropositivity
  
  
Pauling Electropositivity
2.46  
28
3.05  
7
Ionization Energies
  
  
1st Energy Level
658.80 kJ/mol  
39
549.50 kJ/mol  
99+
2nd Energy Level
1,309.80 kJ/mol  
99+
1,064.20 kJ/mol  
99+
3rd Energy Level
2,652.50 kJ/mol  
99+
4,138.00 kJ/mol  
10
4th Energy Level
4,174.60 kJ/mol  
99+
5,500.00 kJ/mol  
22
5th Energy Level
9,581.00 kJ/mol  
5
6,910.00 kJ/mol  
30
6th Energy Level
11,533.00 kJ/mol  
8
8,760.00 kJ/mol  
26
7th Energy level
13,590.00 kJ/mol  
6
10,230.00 kJ/mol  
19
8th Energy Level
16,440.00 kJ/mol  
8
11,800.00 kJ/mol  
19
9th Energy Level
18,530.00 kJ/mol  
11
15,600.00 kJ/mol  
17
10th Energy Level
20,833.00 kJ/mol  
15
17,100.00 kJ/mol  
19
11th Energy Level
25,575.00 kJ/mol  
14
31,270.00 kJ/mol  
6
12th Energy Level
28,125.00 kJ/mol  
37
5,490.00 kJ/mol  
99+
13th Energy Level
76,015.00 kJ/mol  
1
5,490.00 kJ/mol  
99+
14th Energy Level
83,280.00 kJ/mol  
2
5,490.00 kJ/mol  
99+
15th Energy Level
90,880.00 kJ/mol  
4
54,900.00 kJ/mol  
99+
16th Energy Level
100,700.00 kJ/mol  
4
54,900.00 kJ/mol  
99+
17th Energy Level
109,100.00 kJ/mol  
5
549.50 kJ/mol  
99+
18th Energy Level
117,800.00 kJ/mol  
6
5,490.00 kJ/mol  
99+
19th Energy Level
129,900.00 kJ/mol  
7
549.50 kJ/mol  
99+
20th Energy Level
137,530.00 kJ/mol  
9
549.00 kJ/mol  
99+
21st Energy Level
658.80 kJ/mol  
99+
549.50 kJ/mol  
99+
22nd Energy Level
658.00 kJ/mol  
31
549.00 kJ/mol  
99+
23rd Energy Level
658.80 kJ/mol  
99+
549.50 kJ/mol  
99+
24th Energy Level
658.80 kJ/mol  
30
549.50 kJ/mol  
99+
25th Energy Level
658.80 kJ/mol  
32
549.00 kJ/mol  
99+
26th Energy Level
658.80 kJ/mol  
31
549.50 kJ/mol  
99+
27th Energy Level
658.80 kJ/mol  
32
549.50 kJ/mol  
99+
28th Energy Level
658.80 kJ/mol  
37
549.50 kJ/mol  
99+
29th Energy Level
658.80 kJ/mol  
38
549.50 kJ/mol  
99+
30th Energy Level
658.80 kJ/mol  
34
549.50 kJ/mol  
99+
Electrochemical Equivalent
0.45 g/amp-hr  
99+
1.64 g/amp-hr  
99+
Electron Work Function
4.33 eV  
24
2.59 eV  
99+
Other Chemical Properties
Chemical Stability, Ionization  
Ionization, Radioactive Isotopes, Radioactivity, Solubility  
Atomic
Atomic Number
22  
99+
38  
99+
Electron Configuration
[Ar] 3d2 4s2  
[Kr] 5s2  
Crystal Structure
Hexagonal Close Packed (HCP)  
Face Centered Cubic (FCC)  
Crystal Lattice
HCP-Crystal-Structure-of-Titanium.jpg#100  
FCC-Crystal-Structure-of-Strontium.jpg#100  
Atom
  
  
Number of Protons
22  
99+
38  
99+
Number of Neutrons
26  
99+
50  
99+
Number of Electrons
22  
99+
38  
99+
Radius of an Atom
  
  
Atomic Radius
147.00 pm  
36
215.00 pm  
6
Covalent Radius
160.00 pm  
32
195.00 pm  
15
Van der Waals Radius
200.00 pm  
35
249.00 pm  
11
Atomic Weight
47.87 amu  
99+
87.62 amu  
99+
Atomic Volume
10.64 cm3/mol  
99+
33.70 cm3/mol  
9
Adjacent Atomic Numbers
  
  
Previous Element
Scandium
  
Rubidium
  
Next Element
Vanadium
  
Yttrium
  
Valence Electron Potential
95.20 (-eV)  
10
25.70 (-eV)  
99+
Lattice Constant
295.08 pm  
99+
608.49 pm  
6
Lattice Angles
π/2, π/2, 2 π/3  
π/2, π/2, π/2  
Lattice C/A Ratio
1.59  
30
1.57  
40
Mechanical
Density
  
  
Density At Room Temperature
4.51 g/cm3  
99+
2.64 g/cm3  
99+
Density When Liquid (at m.p.)
4.11 g/cm3  
99+
2.38 g/cm3  
99+
Tensile Strength
434.00 MPa  
10
170.00 MPa  
21
Viscosity
0.00  
22
0.00  
2
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
37
121.00 (Pa)  
1
Vapor Pressure at 2000 K
0.98 (Pa)  
14
0.00 (Pa)  
38
Elasticity properties
  
  
Shear Modulus
44.00 GPa  
17
6.03 GPa  
99+
Bulk Modulus
110.00 GPa  
15
11.00 GPa  
99+
Young's Modulus
116.00 GPa  
20
15.70 GPa  
99+
Poisson Ratio
0.32  
12
0.28  
17
Other Mechanical Properties
Ductile  
-  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
4.51  
99+
2.64  
99+
Magnetic Ordering
Paramagnetic  
Paramagnetic  
Permeability
0.00 H/m  
17
0.00 H/m  
17
Susceptibility
0.00  
24
0.00  
35
Electrical Properties
  
  
Electrical Property
Poor Conductor  
-  
Resistivity
420.00 nΩ·m  
12
132.00 nΩ·m  
24
Electrical Conductivity
0.02 106/cm Ω  
99+
0.08 106/cm Ω  
31
Electron Affinity
7.60 kJ/mol  
99+
5.03 kJ/mol  
99+
Thermal
Specific Heat
0.52 J/(kg K)  
9
0.30 J/(kg K)  
18
Molar Heat Capacity
25.06 J/mol·K  
99+
26.40 J/mol·K  
36
Thermal Conductivity
21.90 W/m·K  
99+
35.40 W/m·K  
38
Critical Temperature
1,941.00 K  
21
1,050.00 K  
99+
Thermal Expansion
8.60 µm/(m·K)  
99+
22.50 µm/(m·K)  
19
Enthalpy
  
  
Enthalpy of Vaporization
429.00 kJ/mol  
20
150.00 kJ/mol  
99+
Enthalpy of Fusion
15.48 kJ/mol  
19
9.16 kJ/mol  
99+
Enthalpy of Atomization
468.60 kJ/mol  
20
163.20 kJ/mol  
99+
Standard Molar Entropy
27.30 J/mol.K  
99+
55.00 J/mol.K  
34
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