Home
 Compare Metals

Strontium vs Tantalum

Strontium
Tantalum
Tantalum vs Strontium


Periodic Table
Symbol
Sr  
Ta  
Group Number
2  
16
5  
13
Period Number
5  
6  
Block
s block  
d block  
Element Family
Alkaline Earth  
Transition Metal  
CAS Number
7440246  
99+
7440257  
99+
Space Group Name
Fm_ 3m  
Im_ 3m  
Space Group Number
225.00  
3
229.00  
2
Facts
Interesting Facts
  • Strontium element is softer than Calcium.
  • Silvery Strontium turns yellow, if exposed to air.
  
  • Tantalum metal is known as corrosion resistance.
  • Tantalum metal can easily fabricated and It is a good conductor of heat and electricity.
  
Sources
Found in Minerals, Mining, Ores of Minerals  
Found in Minerals, Mining, Ores of Minerals  
History
  
  
Who Discovered
William Cruickshank  
Anders Gustaf Ekeberg  
Discovery
In 1787  
In 1802  
Abundance
  
  
Abundance In Universe
0.00 %  
15
0.00 %  
32
Abundance In Sun
0.00 %  
15
0.00 %  
18
Abundance In Meteorites
0.00 %  
15
0.00 %  
99+
Abundance In Earth's Crust
0.04 %  
10
0.00 %  
37
Abundance In Oceans
0.00 %  
4
0.00 %  
31
Abundance In Humans
0.00 %  
8
0.00 %  
24
Uses
Uses & Benefits
  • 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.
  
  • Tantalum metal is mainly used in the manufacturing of electron components. Its Oxide layer acts as an insulator.
  • Tantalum metal is also used in surgical transplant like replacement of bone, skull plates and as a woven gauze.
  
Industrial Uses
Ammunition Industry, Chemical Industry  
Electrical Industry, Electronic Industry  
Medical Uses
-  
-  
Other Uses
Alloys  
Alloys  
Biological Properties
  
  
Toxicity
Non Toxic  
Low Toxic  
Present in Human Body
Yes  
Yes  
In Blood
0.03 Blood/mg dm-3  
19
0.00 Blood/mg dm-3  
37
In Bone
140.00 p.p.m.  
7
0.03 p.p.m.  
33
Physical
Melting Point
769.00 °C  
99+
2,996.00 °C  
4
Boiling Point
1,384.00 °C  
99+
5,425.00 °C  
4
Appearance
  
  
Physical State
Solid  
Solid  
Color
Silvery White  
Gray Blue  
Luster
Metallic  
Metallic  
Hardness
  
  
Mohs Hardness
1.50  
19
6.50  
5
Brinell Hardness
110.00 MPa  
99+
440.00 MPa  
33
Vickers Hardness
15.00 MPa  
99+
870.00 MPa  
19
Speed of Sound
4,170.00 m/s  
23
3,400.00 m/s  
33
Optical Properties
  
  
Refractive Index
1.43  
39
2.15  
10
Reflectivity
65.00 %  
18
78.00 %  
8
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Sr  
Ta  
Isotopes
  
  
Known Isotopes
27  
12
31  
8
Electronegativity
  
  
Pauling Electronegativity
0.95  
99+
1.50  
28
Sanderson Electronegativity
0.72  
99+
1.50  
18
Allred Rochow Electronegativity
0.99  
38
1.33  
23
Mulliken-Jaffe Electronegativity
1.00  
99+
1.50  
26
Allen Electronegativity
0.96  
99+
1.34  
38
Electropositivity
  
  
Pauling Electropositivity
3.05  
7
2.50  
27
Ionization Energies
  
  
1st Energy Level
549.50 kJ/mol  
99+
761.00 kJ/mol  
18
2nd Energy Level
1,064.20 kJ/mol  
99+
1,500.00 kJ/mol  
99+
3rd Energy Level
4,138.00 kJ/mol  
10
761.00 kJ/mol  
99+
4th Energy Level
5,500.00 kJ/mol  
22
7,610.00 kJ/mol  
9
5th Energy Level
6,910.00 kJ/mol  
30
7,610.00 kJ/mol  
19
6th Energy Level
8,760.00 kJ/mol  
26
7,610.00 kJ/mol  
36
7th Energy level
10,230.00 kJ/mol  
19
7,610.00 kJ/mol  
30
8th Energy Level
11,800.00 kJ/mol  
19
7,610.00 kJ/mol  
30
9th Energy Level
15,600.00 kJ/mol  
17
7,610.00 kJ/mol  
26
10th Energy Level
17,100.00 kJ/mol  
19
7,610.00 kJ/mol  
30
11th Energy Level
31,270.00 kJ/mol  
6
7,610.00 kJ/mol  
29
12th Energy Level
5,490.00 kJ/mol  
99+
7,610.00 kJ/mol  
99+
13th Energy Level
5,490.00 kJ/mol  
99+
7,610.00 kJ/mol  
22
14th Energy Level
5,490.00 kJ/mol  
99+
7,610.00 kJ/mol  
19
15th Energy Level
54,900.00 kJ/mol  
99+
76,100.00 kJ/mol  
19
16th Energy Level
54,900.00 kJ/mol  
99+
76,100.00 kJ/mol  
14
17th Energy Level
549.50 kJ/mol  
99+
761.00 kJ/mol  
35
18th Energy Level
5,490.00 kJ/mol  
99+
7,610.00 kJ/mol  
25
19th Energy Level
549.50 kJ/mol  
99+
761.00 kJ/mol  
32
20th Energy Level
549.00 kJ/mol  
99+
761.00 kJ/mol  
26
21st Energy Level
549.50 kJ/mol  
99+
761.00 kJ/mol  
99+
22nd Energy Level
549.00 kJ/mol  
99+
761.00 kJ/mol  
20
23rd Energy Level
549.50 kJ/mol  
99+
761.00 kJ/mol  
99+
24th Energy Level
549.50 kJ/mol  
99+
761.00 kJ/mol  
16
25th Energy Level
549.00 kJ/mol  
99+
761.00 kJ/mol  
16
26th Energy Level
549.50 kJ/mol  
99+
761.00 kJ/mol  
16
27th Energy Level
549.50 kJ/mol  
99+
761.00 kJ/mol  
15
28th Energy Level
549.50 kJ/mol  
99+
761.00 kJ/mol  
21
29th Energy Level
549.50 kJ/mol  
99+
761.00 kJ/mol  
22
30th Energy Level
549.50 kJ/mol  
99+
761.00 kJ/mol  
16
Electrochemical Equivalent
1.64 g/amp-hr  
99+
1.35 g/amp-hr  
99+
Electron Work Function
2.59 eV  
99+
4.25 eV  
28
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity, Solubility  
Anti Corrosion, Ionization, Radioactive Isotopes, Radioactivity, Solubility  
Atomic
Atomic Number
38  
99+
73  
99+
Electron Configuration
[Kr] 5s2  
[Xe] 4f14 5d3 6s2  
Crystal Structure
Face Centered Cubic (FCC)  
Body Centered Cubic (BCC)  
Crystal Lattice
FCC-Crystal-Structure-of-Strontium.jpg#100  
BCC-Crystal-Structure-.jpg#100  
Atom
  
  
Number of Protons
38  
99+
73  
99+
Number of Neutrons
50  
99+
108  
29
Number of Electrons
38  
99+
73  
99+
Radius of an Atom
  
  
Atomic Radius
215.00 pm  
6
146.00 pm  
37
Covalent Radius
195.00 pm  
15
170.00 pm  
27
Van der Waals Radius
249.00 pm  
11
200.00 pm  
35
Atomic Weight
87.62 amu  
99+
180.95 amu  
38
Atomic Volume
33.70 cm3/mol  
9
10.90 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Rubidium
  
Hafnium
  
Next Element
Yttrium
  
Tungsten
  
Valence Electron Potential
25.70 (-eV)  
99+
110.00 (-eV)  
7
Lattice Constant
608.49 pm  
6
330.13 pm  
99+
Lattice Angles
π/2, π/2, π/2  
π/2, π/2, π/2  
Lattice C/A Ratio
1.57  
40
1.41  
99+
Mechanical
Density
  
  
Density At Room Temperature
2.64 g/cm3  
99+
16.69 g/cm3  
18
Density When Liquid (at m.p.)
2.38 g/cm3  
99+
15.00 g/cm3  
23
Tensile Strength
170.00 MPa  
21
180.00 MPa  
20
Viscosity
0.00  
2
0.00  
25
Vapor Pressure
  
  
Vapor Pressure at 1000 K
121.00 (Pa)  
1
0.00 (Pa)  
37
Vapor Pressure at 2000 K
0.00 (Pa)  
38
0.00 (Pa)  
99+
Elasticity properties
  
  
Shear Modulus
6.03 GPa  
99+
69.00 GPa  
13
Bulk Modulus
11.00 GPa  
99+
200.00 GPa  
8
Young's Modulus
15.70 GPa  
99+
186.00 GPa  
14
Poisson Ratio
0.28  
17
0.34  
10
Other Mechanical Properties
-  
Ductile  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
2.64  
99+
16.65  
20
Magnetic Ordering
Paramagnetic  
Paramagnetic  
Permeability
0.00 H/m  
17
0.00 H/m  
17
Susceptibility
0.00  
35
0.00  
27
Electrical Properties
  
  
Electrical Property
-  
Conductor  
Resistivity
132.00 nΩ·m  
24
131.00 nΩ·m  
25
Electrical Conductivity
0.08 106/cm Ω  
31
0.08 106/cm Ω  
32
Electron Affinity
5.03 kJ/mol  
99+
31.00 kJ/mol  
35
Thermal
Specific Heat
0.30 J/(kg K)  
18
0.14 J/(kg K)  
38
Molar Heat Capacity
26.40 J/mol·K  
36
25.36 J/mol·K  
99+
Thermal Conductivity
35.40 W/m·K  
38
57.50 W/m·K  
27
Critical Temperature
1,050.00 K  
99+
3,290.00 K  
4
Thermal Expansion
22.50 µm/(m·K)  
19
6.30 µm/(m·K)  
99+
Enthalpy
  
  
Enthalpy of Vaporization
150.00 kJ/mol  
99+
753.10 kJ/mol  
2
Enthalpy of Fusion
9.16 kJ/mol  
99+
31.40 kJ/mol  
3
Enthalpy of Atomization
163.20 kJ/mol  
99+
782.00 kJ/mol  
3
Standard Molar Entropy
55.00 J/mol.K  
34
41.50 J/mol.K  
99+
Periodic Table >>
<< All

Compare Alkali Metals

Alkali Metals

Alkali Metals

» More Alkali Metals

Compare Alkali Metals

» More Compare Alkali Metals
Home | About | Contact | Disclaimer | Terms of use
© A softusvista inc. venture!