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Technetium
Technetium

Zinc
Zinc



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1 Periodic Table
1.1 Symbol
Tc
Zn
1.2 Group Number
712
Gadolinium
0 17
2.3 Period Number
54
Lithium
2 7
2.4 Block
d block
d block
2.5 Element Family
Transition Metal
Transition Metal
2.7 CAS Number
74402687440666
Aluminium
7429905 54386242
2.9 Space Group Name
P63/mmc
P63/mmc
2.10 Space Group Number
194.00194.00
Plutonium
11 229
3 Facts
3.1 Interesting Facts
  • Original name of Technetium was Masurium.
  • At the time of its discovery it found in sample of Molybdenum.
  • Zinc metal found (obtain) in many forms like granules, foil, dust and in a powder form.
  • The leading producers of Zinc metal are Australia, Canada, China, U.S.A and Peru.
3.2 Sources
Made by Bombarding Molybdenum with Deuterons
Earth's crust, Found in Minerals, Mining, Ores of Minerals
3.3 History
3.3.1 Who Discovered
Emilio Segrè and Carlo Perriero
Indian metallurgists
3.4.1 Discovery
In 1937
Before 1000 BCE
3.5 Abundance
3.5.1 Abundance In Universe
NA3 * 10-5 %
Thallium
5E-09 0.11
3.7.2 Abundance In Sun
~-9999 %~0.0002 %
Beryllium
1E-08 0.1
3.10.1 Abundance In Meteorites
NA0.02 %
Gold
1.7E-07 22
4.2.2 Abundance In Earth's Crust
NA0.01 %
Radium
9.9E-12 8.1
4.5.1 Abundance In Oceans
NA0.00 %
Protactinium
2E-23 1.1
4.6.4 Abundance In Humans
NA0.00 %
Radium
1E-13 1.4
5 Uses
5.1 Uses & Benefits
  • Technetium is a radioactive metal and hence it is used for medical studies and other research purposes.
  • It is mainly used for Galvanizing other metals.
  • It is also used for manufacturing die-casting and it is very essential for automobile industry.
5.1.1 Industrial Uses
NA
Electrical Industry, Electronic Industry
5.1.2 Medical Uses
NA
Pharmaceutical Industry
5.1.3 Other Uses
Alloys, Nuclear Research, Research Purposes
Alloys
5.2 Biological Properties
5.2.1 Toxicity
Low Toxic
Highly Toxic
5.2.2 Present in Human Body
5.2.3 In Blood
0.00 Blood/mg dm-37.00 Blood/mg dm-3
Plutonium
0 1970
5.2.5 In Bone
0.00 p.p.m.170.00 p.p.m.
Plutonium
0 170000
6 Physical
6.1 Melting Point
2,200.00 °C419.58 °C
Francium
27 3410
6.2 Boiling Point
4,877.00 °C907.00 °C
Flerovium
147 5660
6.3 Appearance
6.3.1 Physical State
Solid
Solid
6.3.2 Color
Shiny Gray
Silvery Gray
6.3.3 Luster
NA
Metallic
6.4 Hardness
6.4.1 Mohs Hardness
NA2.50
Cesium
0.2 8.5
6.5.1 Brinell Hardness
NA327.00 MPa
Cesium
0.14 3490
7.1.2 Vickers Hardness
NANA
Palladium
121 3430
7.2 Speed of Sound
16,200.00 m/s3,850.00 m/s
Thallium
818 16200
7.4 Optical Properties
7.4.1 Refractive Index
NA1.00
Mercury
1.000933 1.7229
7.4.3 Reflectivity
NA80.00 %
Molybdenum
58 97
7.5 Allotropes
7.5.1 α Allotropes
Not Available
Not Available
7.5.2 β Allotropes
Not Available
Not Available
7.5.3 γ Allotropes
Not Available
Not Available
8 Chemical
8.1 Chemical Formula
Tc
Zn
8.2 Isotopes
8.2.1 Known Isotopes
1825
Tennessine
0 38
8.3 Electronegativity
8.3.1 Pauling Electronegativity
1.901.65
Francium
0.7 2.54
8.3.4 Sanderson Electronegativity
NA2.23
Cesium
0.22 2.56
9.2.1 Allred Rochow Electronegativity
1.361.66
Cesium
0.86 1.82
9.3.1 Mulliken-Jaffe Electronegativity
NA1.65
Cesium
0.62 2.48
9.4.1 Allen Electronegativity
1.511.59
Cesium
0.659 2.7
9.6 Electropositivity
9.6.1 Pauling Electropositivity
2.102.35
Gold
1.46 3.3
9.8 Ionization Energies
9.8.1 1st Energy Level
702.00 kJ/mol906.40 kJ/mol
Cesium
375.7 26130
9.8.4 2nd Energy Level
1,470.00 kJ/mol1,733.30 kJ/mol
Ruthenium
710.2162 28750
9.8.7 3rd Energy Level
2,850.00 kJ/mol3,833.00 kJ/mol
Osmium
1600 34230
9.8.11 4th Energy Level
NA5,731.00 kJ/mol
Thorium
2780 37066
9.9.1 5th Energy Level
NA7,970.00 kJ/mol
Dubnium
4305.2 97510
9.9.4 6th Energy Level
NA10,400.00 kJ/mol
Seaborgium
5715.8 105800
9.10.1 7th Energy level
NA12,900.00 kJ/mol
Bohrium
7226.8 114300
9.10.2 8th Energy Level
NA16,800.00 kJ/mol
Hassium
8857.4 125300
9.11.1 9th Energy Level
NA19,600.00 kJ/mol
Yttrium
14110 134700
10.1.1 10th Energy Level
NA23,000.00 kJ/mol
Strontium
17100 144300
10.4.2 11th Energy Level
NA26,400.00 kJ/mol
Yttrium
19900 169988
10.4.4 12th Energy Level
NA29,990.00 kJ/mol
Molybdenum
22219 189368
10.4.5 13th Energy Level
NA40,490.00 kJ/mol
Molybdenum
26930 76015
10.4.7 14th Energy Level
NA43,800.00 kJ/mol
Molybdenum
29196 86450
10.5.2 15th Energy Level
NA47,300.00 kJ/mol
Manganese
41987 97510
10.5.4 16th Energy Level
NA52,300.00 kJ/mol
Iron
47206 109480
10.5.6 17th Energy Level
NA55,900.00 kJ/mol
Cobalt
52737 122200
10.6.1 18th Energy Level
NA59,700.00 kJ/mol
Nickel
58570 134810
10.7.1 19th Energy Level
NA67,300.00 kJ/mol
Copper
64702 148700
10.7.2 20th Energy Level
NA171,200.00 kJ/mol
Molybdenum
80400 171200
10.9.1 21st Energy Level
NA179,100.00 kJ/mol
Molybdenum
87000 179100
10.9.2 22nd Energy Level
NANA
Molybdenum
93400 184900
10.10.1 23rd Energy Level
NANA
Molybdenum
98420 198800
10.10.2 24th Energy Level
NANA
Molybdenum
104400 195200
10.12.1 25th Energy Level
NANA
Molybdenum
121900 121900
11.1.2 26th Energy Level
NANA
Molybdenum
127700 127700
11.1.3 27th Energy Level
NANA
Molybdenum
133800 133800
11.1.5 28th Energy Level
NANA
Molybdenum
139800 139800
11.2.1 29th Energy Level
NANA
Molybdenum
148100 148100
11.2.2 30th Energy Level
NANA
Molybdenum
154500 154500
11.4 Electrochemical Equivalent
0.52 g/amp-hr1.22 g/amp-hr
Beryllium
0.16812 8.3209
11.6 Electron Work Function
NA4.33 eV
Cesium
2.14 5.65
11.8 Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes, Radioactivity, Solubility
Anti Corrosion, Chemical Stability, Ionization, Radioactive Isotopes
12 Atomic
12.1 Atomic Number
4330
Lithium
3 117
12.2 Electron Configuration
[Kr] 4d5 5s2
[Ar] 3d10 4s2
12.3 Crystal Structure
Hexagonal Close Packed (HCP)
Hexagonal Close Packed (HCP)
12.3.1 Crystal Lattice
12.4 Atom
12.4.1 Number of Protons
4330
Lithium
3 117
12.4.3 Number of Neutrons
5535
Lithium
4 184
12.5.1 Number of Electrons
4330
Lithium
3 117
13.2 Radius of an Atom
13.2.1 Atomic Radius
136.00 pm134.00 pm
Beryllium
112 265
13.2.4 Covalent Radius
147.00 pm122.00 pm
Beryllium
96 260
13.2.6 Van der Waals Radius
200.00 pm139.00 pm
Palladium
139 348
13.4 Atomic Weight
98.00 amu65.38 amu
Lithium
6.94 294
13.5 Atomic Volume
8.50 cm3/mol9.20 cm3/mol
Manganese
1.39 71.07
13.6 Adjacent Atomic Numbers
13.6.1 Previous Element
13.6.2 Next Element
13.7 Valence Electron Potential
180.00 (-eV)38.90 (-eV)
Francium
8 392.42
14.2 Lattice Constant
273.50 pm266.49 pm
Beryllium
228.58 891.25
14.4 Lattice Angles
π/2, π/2, 2 π/3
π/2, π/2, 2 π/3
14.5 Lattice C/A Ratio
1.60NA
Beryllium
1.567 1.886
15 Mechanical
15.1 Density
15.1.1 Density At Room Temperature
11.00 g/cm37.14 g/cm3
Lithium
0.534 40.7
15.2.1 Density When Liquid (at m.p.)
NA6.57 g/cm3
Lithium
0.512 20
15.4 Tensile Strength
NANA
Indium
2.5 11000
15.6 Viscosity
NANA
Mercury
0.001526 0.001526
15.8 Vapor Pressure
15.8.1 Vapor Pressure at 1000 K
NANA
Cerium
2.47E-11 121
15.8.2 Vapor Pressure at 2000 K
NANA
Tungsten
2.62E-10 774
15.9 Elasticity properties
15.9.1 Shear Modulus
NA43.00 GPa
Potassium
1.3 222
15.9.3 Bulk Modulus
NA70.00 GPa
Cesium
1.6 462
15.10.1 Young's Modulus
NA108.00 GPa
Cesium
1.7 528
1.3 Poisson Ratio
NA0.25
Beryllium
0.032 0.47
1.4 Other Mechanical Properties
NA
NA
2 Magnetic
2.1 Magnetic Characteristics
2.1.1 Specific Gravity
11.506.90
Lithium
0.53 4500
2.2.1 Magnetic Ordering
Paramagnetic
Diamagnetic
2.2.2 Permeability
NANA
Bismuth
1.25643E-06 0.0063
2.5.1 Susceptibility
NANA
Bismuth
-0.000166 200000
2.6 Electrical Properties
2.6.1 Electrical Property
Conductor
Conductor
2.6.2 Resistivity
200.00 nΩ·m59.00 nΩ·m
Thallium
0.18 961
2.8.1 Electrical Conductivity
0.07 106/cm Ω0.17 106/cm Ω
Plutonium
0.00666 0.63
2.8.2 Electron Affinity
53.00 kJ/mol0.00 kJ/mol
Mercury
0 222.8
3 Thermal
3.1 Specific Heat
0.21 J/(kg K)0.39 J/(kg K)
Americium
0.11 3.6
3.2 Molar Heat Capacity
24.27 J/mol·K25.47 J/mol·K
Beryllium
16.443 62.7
3.3 Thermal Conductivity
50.60 W/m·K116.00 W/m·K
Neptunium
6.3 429
3.4 Critical Temperature
NANA
Ytterbium
26.3 3223
3.5 Thermal Expansion
7.10 µm/(m·K)30.20 µm/(m·K)
Tungsten
4.5 97
3.6 Enthalpy
3.6.1 Enthalpy of Vaporization
660.00 kJ/mol7.32 kJ/mol
Sodium
7.32 799.1
3.6.2 Enthalpy of Fusion
23.01 kJ/mol7.32 kJ/mol
Cesium
2.1 35.23
3.6.3 Enthalpy of Atomization
649.00 kJ/mol129.70 kJ/mol
Mercury
61.5 837
3.7 Standard Molar Entropy
181.10 J/mol.K41.60 J/mol.K
Beryllium
9.5 198.1