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Strontium vs Copper

Strontium
Copper
Copper vs Strontium


Periodic Table
Symbol
Sr  
Cu  
Group Number
2  
16
11  
7
Period Number
5  
4  
Block
s block  
d block  
Element Family
Alkaline Earth  
Transition Metal  
CAS Number
7440246  
99+
7440508  
37
Space Group Name
Fm_ 3m  
Fm_ 3m  
Space Group Number
225.00  
3
225.00  
3
Facts
Interesting Facts
  • Strontium element is softer than Calcium.
  • Silvery Strontium turns yellow, if exposed to air.
  
  • Copper rarely found in its pure form in nature.
  • Copper Sulfate is mostly used in agricultural poison and as an algicide in water purification system.
  
Sources
Found in Minerals, Mining, Ores of Minerals  
Found in Minerals  
History
  
  
Who Discovered
William Cruickshank  
-  
Discovery
In 1787  
In Middle East (9000 BCE)  
Abundance
  
  
Abundance In Universe
0.00 %  
15
0.00 %  
13
Abundance In Sun
0.00 %  
15
0.00 %  
12
Abundance In Meteorites
0.00 %  
15
0.01 %  
13
Abundance In Earth's Crust
0.04 %  
10
0.01 %  
17
Abundance In Oceans
0.00 %  
4
0.00 %  
8
Abundance In Humans
0.00 %  
8
0.00 %  
10
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.
  
  • It is use for coinage and bullion.
  • Most of copper element is used in manufacturing electrical and electronic equipments such as wirings and components. It is also used in construction and industrial machine.
  
Industrial Uses
Ammunition Industry, Chemical Industry  
Chemical Industry, Electronic Industry  
Medical Uses
-  
-  
Other Uses
Alloys  
Alloys, Coinage, Jewellery  
Biological Properties
  
  
Toxicity
Non Toxic  
Non Toxic  
Present in Human Body
Yes  
Yes  
In Blood
0.03 Blood/mg dm-3  
19
1.01 Blood/mg dm-3  
8
In Bone
140.00 p.p.m.  
7
26.00 p.p.m.  
12
Physical
Melting Point
769.00 °C  
99+
1,084.62 °C  
40
Boiling Point
1,384.00 °C  
99+
2,562.00 °C  
99+
Appearance
  
  
Physical State
Solid  
Solid  
Color
Silvery White  
Copper  
Luster
Metallic  
-  
Hardness
  
  
Mohs Hardness
1.50  
19
3.00  
13
Brinell Hardness
110.00 MPa  
99+
235.00 MPa  
99+
Vickers Hardness
15.00 MPa  
99+
343.00 MPa  
99+
Speed of Sound
4,170.00 m/s  
23
3,810.00 m/s  
26
Optical Properties
  
  
Refractive Index
1.43  
39
1.10  
99+
Reflectivity
65.00 %  
18
90.00 %  
4
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Sr  
Cu  
Isotopes
  
  
Known Isotopes
27  
12
29  
10
Electronegativity
  
  
Pauling Electronegativity
0.95  
99+
1.90  
12
Sanderson Electronegativity
0.72  
99+
1.98  
11
Allred Rochow Electronegativity
0.99  
38
1.75  
4
Mulliken-Jaffe Electronegativity
1.00  
99+
1.49  
27
Allen Electronegativity
0.96  
99+
1.85  
12
Electropositivity
  
  
Pauling Electropositivity
3.05  
7
2.10  
99+
Ionization Energies
  
  
1st Energy Level
549.50 kJ/mol  
99+
745.50 kJ/mol  
22
2nd Energy Level
1,064.20 kJ/mol  
99+
1,957.90 kJ/mol  
15
3rd Energy Level
4,138.00 kJ/mol  
10
3,555.00 kJ/mol  
15
4th Energy Level
5,500.00 kJ/mol  
22
5,536.00 kJ/mol  
21
5th Energy Level
6,910.00 kJ/mol  
30
7,700.00 kJ/mol  
17
6th Energy Level
8,760.00 kJ/mol  
26
9,900.00 kJ/mol  
16
7th Energy level
10,230.00 kJ/mol  
19
13,400.00 kJ/mol  
7
8th Energy Level
11,800.00 kJ/mol  
19
16,000.00 kJ/mol  
9
9th Energy Level
15,600.00 kJ/mol  
17
19,200.00 kJ/mol  
9
10th Energy Level
17,100.00 kJ/mol  
19
22,400.00 kJ/mol  
11
11th Energy Level
31,270.00 kJ/mol  
6
25,600.00 kJ/mol  
13
12th Energy Level
5,490.00 kJ/mol  
99+
35,600.00 kJ/mol  
27
13th Energy Level
5,490.00 kJ/mol  
99+
38,700.00 kJ/mol  
6
14th Energy Level
5,490.00 kJ/mol  
99+
42,000.00 kJ/mol  
7
15th Energy Level
54,900.00 kJ/mol  
99+
46,700.00 kJ/mol  
99+
16th Energy Level
54,900.00 kJ/mol  
99+
50,200.00 kJ/mol  
99+
17th Energy Level
549.50 kJ/mol  
99+
53,700.00 kJ/mol  
12
18th Energy Level
5,490.00 kJ/mol  
99+
61,100.00 kJ/mol  
10
19th Energy Level
549.50 kJ/mol  
99+
64,702.00 kJ/mol  
11
20th Energy Level
549.00 kJ/mol  
99+
163,700.00 kJ/mol  
2
21st Energy Level
549.50 kJ/mol  
99+
174,100.00 kJ/mol  
2
22nd Energy Level
549.00 kJ/mol  
99+
184,900.00 kJ/mol  
1
23rd Energy Level
549.50 kJ/mol  
99+
198,800.00 kJ/mol  
1
24th Energy Level
549.50 kJ/mol  
99+
745.50 kJ/mol  
19
25th Energy Level
549.00 kJ/mol  
99+
745.50 kJ/mol  
19
26th Energy Level
549.50 kJ/mol  
99+
745.50 kJ/mol  
19
27th Energy Level
549.50 kJ/mol  
99+
745.50 kJ/mol  
18
28th Energy Level
549.50 kJ/mol  
99+
745.50 kJ/mol  
24
29th Energy Level
549.50 kJ/mol  
99+
745.50 kJ/mol  
25
30th Energy Level
549.50 kJ/mol  
99+
745.50 kJ/mol  
19
Electrochemical Equivalent
1.64 g/amp-hr  
99+
1.19 g/amp-hr  
99+
Electron Work Function
2.59 eV  
99+
4.65 eV  
16
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity, Solubility  
Chemical Stability, Corrosion, Ionization, Solubility  
Atomic
Atomic Number
38  
99+
29  
99+
Electron Configuration
[Kr] 5s2  
[Ar] 3d10 4s1  
Crystal Structure
Face Centered Cubic (FCC)  
Face Centered Cubic (FCC)  
Crystal Lattice
FCC-Crystal-Structure-of-Strontium.jpg#100  
FCC-Crystal-Structure-of-Copper.jpg#100  
Atom
  
  
Number of Protons
38  
99+
29  
99+
Number of Neutrons
50  
99+
35  
99+
Number of Electrons
38  
99+
29  
99+
Radius of an Atom
  
  
Atomic Radius
215.00 pm  
6
128.00 pm  
99+
Covalent Radius
195.00 pm  
15
132.00 pm  
99+
Van der Waals Radius
249.00 pm  
11
140.00 pm  
99+
Atomic Weight
87.62 amu  
99+
63.55 amu  
99+
Atomic Volume
33.70 cm3/mol  
9
7.10 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Rubidium
  
Nickel
  
Next Element
Yttrium
  
Zinc
  
Valence Electron Potential
25.70 (-eV)  
99+
34.00 (-eV)  
99+
Lattice Constant
608.49 pm  
6
361.49 pm  
39
Lattice Angles
π/2, π/2, π/2  
π/2, π/2, π/2  
Lattice C/A Ratio
1.57  
40
1.28  
99+
Mechanical
Density
  
  
Density At Room Temperature
2.64 g/cm3  
99+
8.96 g/cm3  
99+
Density When Liquid (at m.p.)
2.38 g/cm3  
99+
8.02 g/cm3  
99+
Tensile Strength
170.00 MPa  
21
210.00 MPa  
19
Viscosity
0.00  
2
0.00  
25
Vapor Pressure
  
  
Vapor Pressure at 1000 K
121.00 (Pa)  
1
1.53 (Pa)  
8
Vapor Pressure at 2000 K
0.00 (Pa)  
38
0.00 (Pa)  
30
Elasticity properties
  
  
Shear Modulus
6.03 GPa  
99+
48.00 GPa  
15
Bulk Modulus
11.00 GPa  
99+
140.00 GPa  
12
Young's Modulus
15.70 GPa  
99+
120.00 GPa  
19
Poisson Ratio
0.28  
17
0.34  
10
Other Mechanical Properties
-  
Ductile, Malleable  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
2.64  
99+
8.89  
99+
Magnetic Ordering
Paramagnetic  
Diamagnetic  
Permeability
0.00 H/m  
17
0.00 H/m  
19
Susceptibility
0.00  
35
0.00  
31
Electrical Properties
  
  
Electrical Property
-  
Conductor  
Resistivity
132.00 nΩ·m  
24
16.78 nΩ·m  
99+
Electrical Conductivity
0.08 106/cm Ω  
31
0.60 106/cm Ω  
2
Electron Affinity
5.03 kJ/mol  
99+
222.80 kJ/mol  
1
Thermal
Specific Heat
0.30 J/(kg K)  
18
0.38 J/(kg K)  
15
Molar Heat Capacity
26.40 J/mol·K  
36
24.44 J/mol·K  
99+
Thermal Conductivity
35.40 W/m·K  
38
401.00 W/m·K  
2
Critical Temperature
1,050.00 K  
99+
1,358.00 K  
99+
Thermal Expansion
22.50 µm/(m·K)  
19
16.50 µm/(m·K)  
27
Enthalpy
  
  
Enthalpy of Vaporization
150.00 kJ/mol  
99+
283.70 kJ/mol  
99+
Enthalpy of Fusion
9.16 kJ/mol  
99+
7.11 kJ/mol  
99+
Enthalpy of Atomization
163.20 kJ/mol  
99+
338.90 kJ/mol  
39
Standard Molar Entropy
55.00 J/mol.K  
34
33.20 J/mol.K  
99+
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