Home
 Compare Metals

Gold Technetium Comparison

Gold
Technetium
Technetium Gold comparison


Periodic Table
Symbol
Au  
Tc  
Group Number
11  
7
7  
11
Period Number
6  
5  
Block
d block  
d block  
Element Family
Transition Metal  
Transition Metal  
CAS Number
7440575  
31
7440268  
99+
Space Group Name
Fm_ 3m  
P63/mmc  
Space Group Number
225.00  
3
194.00  
7
Facts
Interesting Facts
  • It is found in copper ores and from the crust of the earth.
  • It is the most malleable and ductile metal.
  • Gold alloys are used in Dentistry as fillings, crowning, clips, etc. It is also used as an artificial limb joints.
  
  • Original name of Technetium was Masurium.
  • At the time of its discovery it found in sample of Molybdenum.
  
Sources
Earth's crust, Mining, Ores of metals  
Made by Bombarding Molybdenum with Deuterons  
History
  
  
Who Discovered
-  
Emilio Segrè and Carlo Perriero  
Discovery
Before 6000 BCE  
In 1937  
Abundance
  
  
Abundance In Universe
0.00 %  
27
0.00 %  
40
Abundance In Sun
0.00 %  
26
0.00 %  
18
Abundance In Meteorites
0.00 %  
99+
-  
Abundance In Earth's Crust
0.00 %  
99+
0.00 %  
99+
Abundance In Oceans
0.00 %  
21
-  
Abundance In Humans
0.00 %  
21
-  
Uses
Uses & Benefits
  • Gold metal is mainly used for Jewelry, bullion, coinage, etc.
  • It is used in the art, decoration, ornaments, etc. It is also used for electroplating process.
  
  • Technetium is a radioactive metal and hence it is used for medical studies and other research purposes.
  
Industrial Uses
Chemical Industry, Clothing Industry, Electrical Industry, Electronic Industry  
-  
Medical Uses
Dentistry, Pharmaceutical Industry  
-  
Other Uses
Alloys, Bullion, Coinage, Jewellery, Sculptures, Statues  
Alloys, Nuclear Research, Research Purposes  
Biological Properties
  
  
Toxicity
Non Toxic  
Low Toxic  
Present in Human Body
Yes  
No  
In Blood
0.00 Blood/mg dm-3  
38
0.00 Blood/mg dm-3  
40
In Bone
0.02 p.p.m.  
35
0.00 p.p.m.  
99+
Physical
Melting Point
1,064.43 °C  
99+
2,200.00 °C  
9
Boiling Point
2,807.00 °C  
37
4,877.00 °C  
7
Appearance
  
  
Physical State
Solid  
Solid  
Color
Gold  
Shiny Gray  
Luster
Metallic  
-  
Hardness
  
  
Mohs Hardness
2.50  
15
2.25  
16
Brinell Hardness
194.00 MPa  
99+
550.00 MPa  
27
Vickers Hardness
216.00 MPa  
99+
500.00 MPa  
35
Speed of Sound
2,030.00 m/s  
99+
16,200.00 m/s  
1
Optical Properties
  
  
Refractive Index
0.47  
99+
1.90  
18
Reflectivity
95.00 %  
2
35.00 %  
34
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Au  
Tc  
Isotopes
  
  
Known Isotopes
36  
3
18  
21
Electronegativity
  
  
Pauling Electronegativity
2.54  
2
1.90  
12
Sanderson Electronegativity
1.50  
18
1.90  
13
Allred Rochow Electronegativity
1.42  
19
1.36  
21
Mulliken-Jaffe Electronegativity
1.87  
15
1.90  
13
Allen Electronegativity
1.92  
7
1.51  
31
Electropositivity
  
  
Pauling Electropositivity
1.46  
99+
2.10  
99+
Ionization Energies
  
  
1st Energy Level
890.10 kJ/mol  
8
702.00 kJ/mol  
36
2nd Energy Level
1,980.00 kJ/mol  
12
1,470.00 kJ/mol  
99+
3rd Energy Level
2,856.00 kJ/mol  
33
2,850.00 kJ/mol  
34
4th Energy Level
890.10 kJ/mol  
99+
7,020.00 kJ/mol  
14
5th Energy Level
8,901.00 kJ/mol  
6
7,020.00 kJ/mol  
28
6th Energy Level
8,901.00 kJ/mol  
24
7,020.00 kJ/mol  
99+
7th Energy level
8,901.00 kJ/mol  
21
4,700.00 kJ/mol  
99+
8th Energy Level
8,900.00 kJ/mol  
20
4,700.00 kJ/mol  
99+
9th Energy Level
8,901.00 kJ/mol  
20
7,020.00 kJ/mol  
35
10th Energy Level
8,901.00 kJ/mol  
21
7,020.00 kJ/mol  
39
11th Energy Level
8,901.00 kJ/mol  
19
7,020.00 kJ/mol  
37
12th Energy Level
8,900.00 kJ/mol  
39
7,020.00 kJ/mol  
99+
13th Energy Level
8,900.00 kJ/mol  
14
7,020.00 kJ/mol  
33
14th Energy Level
890.10 kJ/mol  
99+
7,020.00 kJ/mol  
23
15th Energy Level
89,000.00 kJ/mol  
7
70,200.00 kJ/mol  
29
16th Energy Level
890.10 kJ/mol  
99+
70,200.00 kJ/mol  
24
17th Energy Level
890.10 kJ/mol  
25
702.50 kJ/mol  
99+
18th Energy Level
8,901.00 kJ/mol  
14
7,020.00 kJ/mol  
35
19th Energy Level
890.10 kJ/mol  
23
702.00 kJ/mol  
99+
20th Energy Level
890.00 kJ/mol  
13
702.00 kJ/mol  
35
21st Energy Level
890.10 kJ/mol  
35
702.00 kJ/mol  
99+
22nd Energy Level
890.00 kJ/mol  
11
702.00 kJ/mol  
29
23rd Energy Level
890.10 kJ/mol  
38
702.00 kJ/mol  
99+
24th Energy Level
890.10 kJ/mol  
6
702.50 kJ/mol  
28
25th Energy Level
890.00 kJ/mol  
5
702.00 kJ/mol  
30
26th Energy Level
890.10 kJ/mol  
5
702.00 kJ/mol  
29
27th Energy Level
890.10 kJ/mol  
4
702.00 kJ/mol  
30
28th Energy Level
890.10 kJ/mol  
7
702.00 kJ/mol  
35
29th Energy Level
890.10 kJ/mol  
8
702.00 kJ/mol  
36
30th Energy Level
890.10 kJ/mol  
5
702.00 kJ/mol  
30
Electrochemical Equivalent
2.45 g/amp-hr  
25
0.52 g/amp-hr  
99+
Electron Work Function
5.10 eV  
8
4.90 eV  
12
Other Chemical Properties
Chemical Stability, Ionization, Solubility  
Anti Corrosion, Ionization, Radioactive Isotopes, Radioactivity, Solubility  
Atomic
Atomic Number
79  
37
43  
99+
Electron Configuration
[Xe] 4f14 5d10 6s1  
[Kr] 4d5 5s2  
Crystal Structure
Face Centered Cubic (FCC)  
Hexagonal Close Packed (HCP)  
Crystal Lattice
FCC-Crystal-Structure-of-Gold.jpg#100  
HCP-Crystal-Structure-of-Technetium.jpg#100  
Atom
  
  
Number of Protons
79  
37
43  
99+
Number of Neutrons
118  
24
55  
99+
Number of Electrons
79  
37
43  
99+
Radius of an Atom
  
  
Atomic Radius
151.00 pm  
34
136.00 pm  
99+
Covalent Radius
144.00 pm  
99+
147.00 pm  
39
Van der Waals Radius
166.00 pm  
99+
200.00 pm  
35
Atomic Weight
196.97 amu  
33
98.00 amu  
99+
Atomic Volume
10.20 cm3/mol  
99+
8.50 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Platinum
  
Molybdenum
  
Next Element
Mercury
  
Ruthenium
  
Valence Electron Potential
43.40 (-eV)  
99+
180.00 (-eV)  
3
Lattice Constant
407.82 pm  
24
273.50 pm  
99+
Lattice Angles
π/2, π/2, π/2  
π/2, π/2, 2 π/3  
Lattice C/A Ratio
1.61  
18
1.60  
21
Mechanical
Density
  
  
Density At Room Temperature
19.30 g/cm3  
15
11.00 g/cm3  
36
Density When Liquid (at m.p.)
17.31 g/cm3  
16
11.00 g/cm3  
34
Tensile Strength
120.00 MPa  
27
50.00 MPa  
38
Viscosity
0.00  
23
0.00  
25
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
25
0.00 (Pa)  
37
Vapor Pressure at 2000 K
67.00 (Pa)  
4
0.00 (Pa)  
99+
Elasticity properties
  
  
Shear Modulus
27.00 GPa  
34
27.00 GPa  
34
Bulk Modulus
180.00 GPa  
9
100.00 GPa  
16
Young's Modulus
79.00 GPa  
26
50.00 GPa  
39
Poisson Ratio
0.40  
4
0.38  
6
Other Mechanical Properties
Ductile, Malleable  
-  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
19.32  
17
11.50  
37
Magnetic Ordering
Diamagnetic  
Paramagnetic  
Permeability
0.00 H/m  
10
0.00 H/m  
17
Susceptibility
0.00  
22
0.00  
24
Electrical Properties
  
  
Electrical Property
Conductor  
Conductor  
Resistivity
2.20 nΩ·m  
99+
200.00 nΩ·m  
18
Electrical Conductivity
0.45 106/cm Ω  
3
0.07 106/cm Ω  
35
Electron Affinity
222.80 kJ/mol  
1
53.00 kJ/mol  
23
Thermal
Specific Heat
0.13 J/(kg K)  
40
0.21 J/(kg K)  
30
Molar Heat Capacity
25.42 J/mol·K  
99+
24.27 J/mol·K  
99+
Thermal Conductivity
318.00 W/m·K  
3
50.60 W/m·K  
30
Critical Temperature
1,337.00 K  
99+
2,150.00 K  
16
Thermal Expansion
14.20 µm/(m·K)  
29
7.10 µm/(m·K)  
99+
Enthalpy
  
  
Enthalpy of Vaporization
324.40 kJ/mol  
99+
660.00 kJ/mol  
7
Enthalpy of Fusion
12.55 kJ/mol  
33
23.01 kJ/mol  
9
Enthalpy of Atomization
364.00 kJ/mol  
34
649.00 kJ/mol  
9
Standard Molar Entropy
47.40 J/mol.K  
99+
181.10 J/mol.K  
2
Summary >>
<< Thermal

Compare Transition Metals

Transition Metals

Transition Metals

» More Transition Metals

Compare Transition Metals

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