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Mercury
Mercury

Mendelevium
Mendelevium



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Mendelevium

Mercury vs Mendelevium

1 Periodic Table
1.1 Symbol
Hg
Md
1.2 Group Number
12NA
Gadolinium
0 17
1.3 Period Number
67
Lithium
2 7
1.4 Block
d block
f block
1.5 Element Family
Transition Metal
Actinide
1.6 CAS Number
74399767440111
Aluminium
7429905 54386242
1.7 Space Group Name
R_ 3m
Not Available
1.8 Space Group Number
166.00NA
Plutonium
11 229
2 Facts
2.1 Interesting Facts
  • At room temperature mercury is found in a liquid state.
  • A coin of pound or rupees floats in mercury.
  • Because of its low melting point and boiling point it is used in thermometers.
  • Mendelevium metal is synthetically produced metal.
  • Mendelevium metal has been produced in only trace amount.
2.2 Sources
Mining, Ores of Minerals
Bombarding Einsteinium with Helium Ions
2.3 History
2.3.1 Who Discovered
Ancient Chinese and Indians
Lawrence Berkeley National Laboratory
2.3.2 Discovery
Before 2000 BCE
In 1955
2.4 Abundance
2.4.1 Abundance In Universe
NANA
Thallium
5E-09 0.11
2.4.2 Abundance In Sun
~-9999 %~-9999 %
Beryllium
1E-08 0.1
2.4.3 Abundance In Meteorites
NANA
Gold
1.7E-07 22
2.4.4 Abundance In Earth's Crust
0.05 %NA
Radium
9.9E-12 8.1
2.4.5 Abundance In Oceans
NANA
Protactinium
2E-23 1.1
2.4.6 Abundance In Humans
NANA
Radium
1E-13 1.4
3 Uses
3.1 Uses & Benefits
  • It is a liquid metal at room temperature, but it is a toxic heavy metal and hence many uses of mercury are under review or phased out.
  • It is manly used as a catalysts in chemical industry.
  • Currently known uses of Mendelevium metal are limited to research purpose only.
3.1.1 Industrial Uses
Electrical Industry, Electronic Industry
NA
3.1.2 Medical Uses
Dentistry
NA
3.1.3 Other Uses
Alloys, Mirror Manufacturing, Pharmaceutical Industry
NA
3.2 Biological Properties
3.2.1 Toxicity
Highly Toxic
Unknown
3.2.2 Present in Human Body
3.2.3 In Blood
0.01 Blood/mg dm-30.00 Blood/mg dm-3
Plutonium
0 1970
3.2.4 In Bone
0.45 p.p.m.0.00 p.p.m.
Plutonium
0 170000
4 Physical
4.1 Melting Point
NA827.00 °C
Francium
27 3410
4.2 Boiling Point
356.58 °CNA
Flerovium
147 5660
4.3 Appearance
4.3.1 Physical State
Liquid
Solid
4.3.2 Color
Silver
Unknown
4.3.3 Luster
NA
Metallic
4.4 Hardness
4.4.1 Mohs Hardness
NANA
Cesium
0.2 8.5
4.4.2 Brinell Hardness
NANA
Cesium
0.14 3490
4.4.3 Vickers Hardness
NANA
Palladium
121 3430
4.5 Speed of Sound
1,451.40 m/sNA
Thallium
818 16200
4.6 Optical Properties
4.6.1 Refractive Index
1.00NA
Palladium
1.000933 1.7229
4.6.2 Reflectivity
73.00 %NA
Molybdenum
58 97
4.7 Allotropes
4.7.1 α Allotropes
Not Available
Not Available
4.7.2 β Allotropes
Not Available
Not Available
4.7.3 γ Allotropes
Not Available
Not Available
5 Chemical
5.1 Chemical Formula
Hg
Md
5.2 Isotopes
5.2.1 Known Isotopes
3416
Tennessine
0 38
5.3 Electronegativity
5.3.1 Pauling Electronegativity
2.001.30
Francium
0.7 2.54
5.3.2 Sanderson Electronegativity
2.20NA
Cesium
0.22 2.56
5.3.3 Allred Rochow Electronegativity
1.441.20
Cesium
0.86 1.82
5.3.4 Mulliken-Jaffe Electronegativity
1.81NA
Cesium
0.62 2.48
5.3.5 Allen Electronegativity
1.44NA
Cesium
0.659 2.7
5.4 Electropositivity
5.4.1 Pauling Electropositivity
2.002.70
Gold
1.46 3.3
5.5 Ionization Energies
5.5.1 1st Energy Level
1,007.10 kJ/mol635.00 kJ/mol
Cesium
375.7 26130
5.5.2 2nd Energy Level
1,810.00 kJ/mol1,235.00 kJ/mol
Ruthenium
710.2162 28750
5.5.3 3rd Energy Level
3,300.00 kJ/mol2,470.00 kJ/mol
Osmium
1600 34230
5.5.4 4th Energy Level
NA3,840.00 kJ/mol
Thorium
2780 37066
5.5.5 5th Energy Level
NANA
Dubnium
4305.2 97510
5.5.6 6th Energy Level
NANA
Seaborgium
5715.8 105800
5.5.7 7th Energy level
NANA
Bohrium
7226.8 114300
5.5.8 8th Energy Level
NANA
Hassium
8857.4 125300
5.5.9 9th Energy Level
NANA
Yttrium
14110 134700
5.5.10 10th Energy Level
NANA
Strontium
17100 144300
5.5.11 11th Energy Level
NANA
Yttrium
19900 169988
5.5.12 12th Energy Level
NANA
Molybdenum
22219 189368
5.5.13 13th Energy Level
NANA
Molybdenum
26930 76015
5.5.14 14th Energy Level
NANA
Molybdenum
29196 86450
5.5.15 15th Energy Level
NANA
Manganese
41987 97510
5.5.16 16th Energy Level
NANA
Iron
47206 109480
5.5.17 17th Energy Level
NANA
Cobalt
52737 122200
5.5.18 18th Energy Level
NANA
Nickel
58570 134810
5.5.19 19th Energy Level
NANA
Copper
64702 148700
5.5.20 20th Energy Level
NANA
Molybdenum
80400 171200
5.5.21 21st Energy Level
NANA
Molybdenum
87000 179100
5.5.22 22nd Energy Level
NANA
Molybdenum
93400 184900
5.5.23 23rd Energy Level
NANA
Molybdenum
98420 198800
5.5.24 24th Energy Level
NANA
Molybdenum
104400 195200
5.5.25 25th Energy Level
NANA
Molybdenum
121900 121900
5.5.26 26th Energy Level
NANA
Molybdenum
127700 127700
5.5.27 27th Energy Level
NANA
Molybdenum
133800 133800
5.5.28 28th Energy Level
NANA
Molybdenum
139800 139800
5.5.29 29th Energy Level
NANA
Molybdenum
148100 148100
5.5.30 30th Energy Level
NANA
Molybdenum
154500 154500
5.6 Electrochemical Equivalent
3.74 g/amp-hr3.21 g/amp-hr
Beryllium
0.16812 8.3209
5.7 Electron Work Function
4.49 eVNA
Cesium
2.14 5.65
5.8 Other Chemical Properties
Flammability, Ionization, Solubility
Ionization, Radioactive Isotopes, Radioactivity
6 Atomic
6.1 Atomic Number
80101
Lithium
3 117
6.2 Electron Configuration
[Xe] 4f14 5d10 6s2
[Rn] 5f13 7s2
6.3 Crystal Structure
Rhombohedral (RHO)
Not Known
6.3.1 Crystal Lattice
6.4 Atom
6.4.1 Number of Protons
80101
Lithium
3 117
6.4.2 Number of Neutrons
121157
Lithium
4 184
6.4.3 Number of Electrons
80101
Lithium
3 117
6.5 Radius of an Atom
6.5.1 Atomic Radius
151.00 pmNA
Beryllium
112 265
6.5.2 Covalent Radius
132.00 pmNA
Beryllium
96 260
6.5.3 Van der Waals Radius
155.00 pm246.00 pm
Zinc
139 348
6.6 Atomic Weight
200.59 amu258.00 amu
Lithium
6.94 294
6.7 Atomic Volume
14.82 cm3/molNA
Manganese
1.39 71.07
6.8 Adjacent Atomic Numbers
6.8.1 Previous Element
6.8.2 Next Element
6.9 Valence Electron Potential
28.20 (-eV)NA
Francium
8 392.42
6.10 Lattice Constant
300.50 pmNA
Beryllium
228.58 891.25
6.11 Lattice Angles
NA
NA
6.12 Lattice C/A Ratio
NANA
Beryllium
1.567 1.886
7 Mechanical
7.1 Density
7.1.1 Density At Room Temperature
13.53 g/cm3NA
Lithium
0.534 40.7
7.1.2 Density When Liquid (at m.p.)
NANA
Lithium
0.512 20
7.2 Tensile Strength
NANA
Indium
2.5 11000
7.3 Viscosity
0.00NA
0.001526 0.001526
7.4 Vapor Pressure
7.4.1 Vapor Pressure at 1000 K
NANA
Cerium
2.47E-11 121
7.4.2 Vapor Pressure at 2000 K
NANA
Tungsten
2.62E-10 774
7.5 Elasticity properties
7.5.1 Shear Modulus
NANA
Potassium
1.3 222
7.5.2 Bulk Modulus
NANA
Cesium
1.6 462
7.5.3 Young's Modulus
NANA
Cesium
1.7 528
7.6 Poisson Ratio
NANA
Beryllium
0.032 0.47
7.7 Other Mechanical Properties
NA
Unknown
8 Magnetic
8.1 Magnetic Characteristics
8.1.1 Specific Gravity
13.53NA
Lithium
0.53 4500
8.1.2 Magnetic Ordering
Diamagnetic
Unknown
8.1.3 Permeability
NANA
Bismuth
1.25643E-06 0.0063
8.1.4 Susceptibility
NANA
Bismuth
-0.000166 200000
8.2 Electrical Properties
8.2.1 Electrical Property
Conductor
Unknown
8.2.2 Resistivity
961.00 nΩ·mNA
Thallium
0.18 961
8.2.3 Electrical Conductivity
0.01 106/cm ΩNA
Plutonium
0.00666 0.63
8.2.4 Electron Affinity
0.00 kJ/molNA
Palladium
0 222.8
9 Thermal
9.1 Specific Heat
0.14 J/(kg K)NA
Americium
0.11 3.6
9.2 Molar Heat Capacity
27.98 J/mol·KNA
Beryllium
16.443 62.7
9.3 Thermal Conductivity
8.30 W/m·KNA
Neptunium
6.3 429
9.4 Critical Temperature
1,750.00 KNA
Ytterbium
26.3 3223
9.5 Thermal Expansion
60.40 µm/(m·K)NA
Tungsten
4.5 97
9.6 Enthalpy
9.6.1 Enthalpy of Vaporization
56.90 kJ/molNA
Zinc
7.32 799.1
9.6.2 Enthalpy of Fusion
2.29 kJ/molNA
Cesium
2.1 35.23
9.6.3 Enthalpy of Atomization
61.50 kJ/molNA
Sodium
61.5 837
9.7 Standard Molar Entropy
75.80 J/mol.KNA
Beryllium
9.5 198.1