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Gold
Gold

Mendelevium
Mendelevium



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1 Periodic Table
1.1 Symbol
Au
Md
1.2 Group Number
11NA
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
74405757440111
Aluminium
7429905 54386242
1.7 Space Group Name
Fm_ 3m
Not Available
1.8 Space Group Number
225.00NA
Plutonium
11 229
2 Facts
2.1 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.
  • Mendelevium metal is synthetically produced metal.
  • Mendelevium metal has been produced in only trace amount.
2.2 Sources
Earth's crust, Mining, Ores of metals
Bombarding Einsteinium with Helium Ions
2.3 History
2.3.1 Who Discovered
Unknown
Lawrence Berkeley National Laboratory
2.3.2 Discovery
Before 6000 BCE
In 1955
2.4 Abundance
2.4.1 Abundance In Universe
6 * 10-8 %NA
Thallium
5E-09 0.11
2.5.3 Abundance In Sun
~0.0000001 %~-9999 %
Beryllium
1E-08 0.1
2.5.5 Abundance In Meteorites
0.00 %NA
Palladium
1.7E-07 22
2.5.7 Abundance In Earth's Crust
0.00 %NA
Radium
9.9E-12 8.1
2.5.9 Abundance In Oceans
0.00 %NA
Protactinium
2E-23 1.1
1.2.2 Abundance In Humans
0.00 %NA
Radium
1E-13 1.4
2 Uses
2.1 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.
  • Currently known uses of Mendelevium metal are limited to research purpose only.
2.1.1 Industrial Uses
Chemical Industry, Clothing Industry, Electrical Industry, Electronic Industry
NA
2.1.2 Medical Uses
Dentistry, Pharmaceutical Industry
NA
2.1.3 Other Uses
Alloys, Bullion, Coinage, Jewellery, Sculptures, Statues
NA
2.2 Biological Properties
2.2.1 Toxicity
Non Toxic
Unknown
2.2.2 Present in Human Body
2.4.1 In Blood
0.00 Blood/mg dm-30.00 Blood/mg dm-3
Plutonium
0 1970
2.7.2 In Bone
0.02 p.p.m.0.00 p.p.m.
Plutonium
0 170000
4 Physical
4.1 Melting Point
1,064.43 °C827.00 °C
Francium
27 3410
4.2 Boiling Point
2,807.00 °CNA
Flerovium
147 5660
4.3 Appearance
4.3.1 Physical State
Solid
Solid
4.3.3 Color
Gold
Unknown
4.3.4 Luster
Metallic
Metallic
4.4 Hardness
4.4.1 Mohs Hardness
2.50NA
Cesium
0.2 8.5
4.4.4 Brinell Hardness
194.00 MPaNA
Cesium
0.14 3490
5.2.5 Vickers Hardness
216.00 MPaNA
Palladium
121 3430
6.2 Speed of Sound
2,030.00 m/sNA
Thallium
818 16200
6.4 Optical Properties
6.4.1 Refractive Index
NANA
Mercury
1.000933 1.7229
6.6.3 Reflectivity
95.00 %NA
Molybdenum
58 97
6.7 Allotropes
6.7.2 α Allotropes
Not Available
Not Available
6.7.3 β Allotropes
Not Available
Not Available
6.7.4 γ Allotropes
Not Available
Not Available
7 Chemical
7.1 Chemical Formula
Au
Md
7.2 Isotopes
7.2.1 Known Isotopes
3616
Tennessine
0 38
7.3 Electronegativity
7.3.1 Pauling Electronegativity
2.541.30
Francium
0.7 2.54
7.4.2 Sanderson Electronegativity
NANA
Cesium
0.22 2.56
7.4.5 Allred Rochow Electronegativity
1.421.20
Cesium
0.86 1.82
7.5.2 Mulliken-Jaffe Electronegativity
1.87NA
Cesium
0.62 2.48
7.5.6 Allen Electronegativity
1.92NA
Cesium
0.659 2.7
7.6 Electropositivity
7.6.1 Pauling Electropositivity
1.462.70
Palladium
1.46 3.3
8.3 Ionization Energies
8.3.1 1st Energy Level
890.10 kJ/mol635.00 kJ/mol
Cesium
375.7 26130
8.3.3 2nd Energy Level
1,980.00 kJ/mol1,235.00 kJ/mol
Ruthenium
710.2162 28750
8.4.1 3rd Energy Level
NA2,470.00 kJ/mol
Osmium
1600 34230
8.6.1 4th Energy Level
NA3,840.00 kJ/mol
Thorium
2780 37066
9.1.1 5th Energy Level
NANA
Dubnium
4305.2 97510
9.2.1 6th Energy Level
NANA
Seaborgium
5715.8 105800
9.4.3 7th Energy level
NANA
Bohrium
7226.8 114300
9.4.5 8th Energy Level
NANA
Hassium
8857.4 125300
9.4.7 9th Energy Level
NANA
Yttrium
14110 134700
9.4.9 10th Energy Level
NANA
Strontium
17100 144300
9.5.2 11th Energy Level
NANA
Yttrium
19900 169988
9.5.5 12th Energy Level
NANA
Molybdenum
22219 189368
9.5.7 13th Energy Level
NANA
Molybdenum
26930 76015
9.6.2 14th Energy Level
NANA
Molybdenum
29196 86450
9.7.1 15th Energy Level
NANA
Manganese
41987 97510
9.9.1 16th Energy Level
NANA
Iron
47206 109480
9.10.2 17th Energy Level
NANA
Cobalt
52737 122200
9.11.1 18th Energy Level
NANA
Nickel
58570 134810
9.14.2 19th Energy Level
NANA
Copper
64702 148700
10.1.2 20th Energy Level
NANA
Molybdenum
80400 171200
10.1.4 21st Energy Level
NANA
Molybdenum
87000 179100
10.1.6 22nd Energy Level
NANA
Molybdenum
93400 184900
10.2.1 23rd Energy Level
NANA
Molybdenum
98420 198800
10.3.1 24th Energy Level
NANA
Molybdenum
104400 195200
10.3.3 25th Energy Level
NANA
Molybdenum
121900 121900
10.4.2 26th Energy Level
NANA
Molybdenum
127700 127700
10.4.3 27th Energy Level
NANA
Molybdenum
133800 133800
10.4.6 28th Energy Level
NANA
Molybdenum
139800 139800
10.5.2 29th Energy Level
NANA
Molybdenum
148100 148100
10.5.3 30th Energy Level
NANA
Molybdenum
154500 154500
10.6 Electrochemical Equivalent
2.45 g/amp-hr3.21 g/amp-hr
Beryllium
0.16812 8.3209
10.7 Electron Work Function
5.10 eVNA
Cesium
2.14 5.65
10.9 Other Chemical Properties
Chemical Stability, Ionization, Solubility
Ionization, Radioactive Isotopes, Radioactivity
11 Atomic
11.1 Atomic Number
79101
Lithium
3 117
12.2 Electron Configuration
[Xe] 4f14 5d10 6s1
[Rn] 5f13 7s2
12.3 Crystal Structure
Face Centered Cubic (FCC)
Not Known
12.3.1 Crystal Lattice
12.4 Atom
12.4.1 Number of Protons
79101
Lithium
3 117
12.4.5 Number of Neutrons
118157
Lithium
4 184
12.4.7 Number of Electrons
79101
Lithium
3 117
12.6 Radius of an Atom
12.6.1 Atomic Radius
151.00 pmNA
Beryllium
112 265
12.6.3 Covalent Radius
144.00 pmNA
Beryllium
96 260
12.6.6 Van der Waals Radius
166.00 pm246.00 pm
Zinc
139 348
12.7 Atomic Weight
196.97 amu258.00 amu
Lithium
6.94 294
13.2 Atomic Volume
10.20 cm3/molNA
Manganese
1.39 71.07
13.5 Adjacent Atomic Numbers
13.5.1 Previous Element
13.5.2 Next Element
13.6 Valence Electron Potential
43.40 (-eV)NA
Francium
8 392.42
13.8 Lattice Constant
407.82 pmNA
Beryllium
228.58 891.25
13.10 Lattice Angles
π/2, π/2, π/2
NA
13.11 Lattice C/A Ratio
1.61NA
Beryllium
1.567 1.886
14 Mechanical
14.1 Density
14.1.1 Density At Room Temperature
19.30 g/cm3NA
Lithium
0.534 40.7
14.2.2 Density When Liquid (at m.p.)
17.31 g/cm3NA
Lithium
0.512 20
14.3 Tensile Strength
120.00 MPaNA
Indium
2.5 11000
1.2 Viscosity
NANA
Mercury
0.001526 0.001526
1.3 Vapor Pressure
1.3.1 Vapor Pressure at 1000 K
0.00 (Pa)NA
Cerium
2.47E-11 121
1.4.1 Vapor Pressure at 2000 K
67.00 (Pa)NA
Tungsten
2.62E-10 774
1.6 Elasticity properties
1.6.1 Shear Modulus
27.00 GPaNA
Potassium
1.3 222
1.7.1 Bulk Modulus
180.00 GPaNA
Cesium
1.6 462
1.8.1 Young's Modulus
79.00 GPaNA
Cesium
1.7 528
1.10 Poisson Ratio
0.40NA
Beryllium
0.032 0.47
1.11 Other Mechanical Properties
Ductile, Malleable
Unknown
2 Magnetic
2.1 Magnetic Characteristics
2.1.1 Specific Gravity
19.32NA
Lithium
0.53 4500
2.2.3 Magnetic Ordering
Diamagnetic
Unknown
2.2.4 Permeability
NANA
Bismuth
1.25643E-06 0.0063
2.2.5 Susceptibility
NANA
Bismuth
-0.000166 200000
2.3 Electrical Properties
2.3.1 Electrical Property
Conductor
Unknown
2.3.2 Resistivity
2.20 nΩ·mNA
Thallium
0.18 961
2.3.4 Electrical Conductivity
0.45 106/cm ΩNA
Plutonium
0.00666 0.63
2.3.6 Electron Affinity
222.80 kJ/molNA
Mercury
0 222.8
3 Thermal
3.1 Specific Heat
0.13 J/(kg K)NA
Americium
0.11 3.6
3.2 Molar Heat Capacity
25.42 J/mol·KNA
Beryllium
16.443 62.7
3.3 Thermal Conductivity
318.00 W/m·KNA
Neptunium
6.3 429
3.4 Critical Temperature
NANA
Ytterbium
26.3 3223
3.5 Thermal Expansion
14.20 µm/(m·K)NA
Tungsten
4.5 97
3.6 Enthalpy
3.6.1 Enthalpy of Vaporization
324.40 kJ/molNA
Zinc
7.32 799.1
1.1.3 Enthalpy of Fusion
12.55 kJ/molNA
Cesium
2.1 35.23
1.1.6 Enthalpy of Atomization
364.00 kJ/molNA
Mercury
61.5 837
1.4 Standard Molar Entropy
47.40 J/mol.KNA
Beryllium
9.5 198.1