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Mendelevium
Mendelevium

Scandium
Scandium



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Mendelevium
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Mendelevium vs Scandium

1 Periodic Table
1.1 Symbol
Md
Sc
1.3 Group Number
NA3
Gadolinium
0 17
1.8 Period Number
74
Lithium
2 7
1.16 Block
f block
d block
2.2 Element Family
Actinide
Transition Metal
2.3 CAS Number
74401117440202
Aluminium
7429905 54386242
4.7 Space Group Name
Not Available
P63/mmc
4.8 Space Group Number
NA194.00
Plutonium
11 229
5 Facts
5.1 Interesting Facts
  • Mendelevium metal is synthetically produced metal.
  • Mendelevium metal has been produced in only trace amount.
  • Scandium is known as one of the rare earth elements.
  • Scandium metal found in rare minerals called Wolframite .
5.2 Sources
Bombarding Einsteinium with Helium Ions
Found in Minerals, Mining, Ores of metals, Ores of Minerals
5.3 History
5.3.1 Who Discovered
Lawrence Berkeley National Laboratory
Lars Fredrik Nilson
5.3.2 Discovery
In 1955
In 1879
5.4 Abundance
5.4.1 Abundance In Universe
NA3 * 10-6 %
Thallium
5E-09 0.11
5.5.4 Abundance In Sun
~-9999 %~0.000004 %
Beryllium
1E-08 0.1
5.6.3 Abundance In Meteorites
NA0.00 %
Gold
1.7E-07 22
5.8.2 Abundance In Earth's Crust
NA0.00 %
Radium
9.9E-12 8.1
6.2.5 Abundance In Oceans
NA0.00 %
Protactinium
2E-23 1.1
7.3.3 Abundance In Humans
NANA
Radium
1E-13 1.4
9 Uses
9.1 Uses & Benefits
  • Currently known uses of Mendelevium metal are limited to research purpose only.
  • Uses of Scandium are limited to research purpose only. However, it has very low density and higher melting point.
  • Its compounds like scandium iodide is used in mercury vapor lamps to produce very bright white light.
9.1.1 Industrial Uses
NA
Electrical Industry, Electronic Industry
9.1.2 Medical Uses
NA
NA
9.1.3 Other Uses
NA
Alloys
9.2 Biological Properties
9.2.1 Toxicity
Unknown
Non Toxic
9.2.2 Present in Human Body
9.3.1 In Blood
0.00 Blood/mg dm-30.01 Blood/mg dm-3
Plutonium
0 1970
9.4.1 In Bone
0.00 p.p.m.0.00 p.p.m.
Plutonium
0 170000
10 Physical
10.1 Melting Point
827.00 °C1,539.00 °C
Francium
27 3410
10.7 Boiling Point
NA2,832.00 °C
Flerovium
147 5660
10.10 Appearance
10.10.1 Physical State
Solid
Solid
10.10.2 Color
Unknown
Silvery White
10.10.3 Luster
Metallic
Lustrous
10.11 Hardness
10.11.1 Mohs Hardness
NANA
Cesium
0.2 8.5
10.12.5 Brinell Hardness
NA750.00 MPa
Cesium
0.14 3490
10.13.1 Vickers Hardness
NANA
Palladium
121 3430
1.2 Speed of Sound
NANA
Thallium
818 16200
1.7 Optical Properties
1.7.1 Refractive Index
NANA
Mercury
1.000933 1.7229
2.3.1 Reflectivity
NANA
Molybdenum
58 97
2.5 Allotropes
2.5.2 α Allotropes
Not Available
Not Available
2.5.3 β Allotropes
Not Available
Not Available
2.5.5 γ Allotropes
Not Available
Not Available
3 Chemical
3.1 Chemical Formula
Md
Sc
3.3 Isotopes
3.3.1 Known Isotopes
1613
Tennessine
0 38
3.5 Electronegativity
3.5.1 Pauling Electronegativity
1.301.36
Francium
0.7 2.54
3.5.4 Sanderson Electronegativity
NA1.02
Cesium
0.22 2.56
3.5.7 Allred Rochow Electronegativity
1.201.20
Cesium
0.86 1.82
3.6.3 Mulliken-Jaffe Electronegativity
NANA
Cesium
0.62 2.48
3.8.3 Allen Electronegativity
NA1.19
Cesium
0.659 2.7
3.11 Electropositivity
3.11.1 Pauling Electropositivity
2.702.64
Gold
1.46 3.3
3.12 Ionization Energies
3.12.1 1st Energy Level
635.00 kJ/mol633.10 kJ/mol
Cesium
375.7 26130
3.12.4 2nd Energy Level
1,235.00 kJ/mol1,235.00 kJ/mol
Ruthenium
710.2162 28750
3.12.5 3rd Energy Level
2,470.00 kJ/mol2,388.60 kJ/mol
Osmium
1600 34230
1.1.1 4th Energy Level
3,840.00 kJ/mol7,090.60 kJ/mol
Thorium
2780 37066
1.3.1 5th Energy Level
NA8,843.00 kJ/mol
Dubnium
4305.2 97510
1.4.1 6th Energy Level
NA10,679.00 kJ/mol
Seaborgium
5715.8 105800
1.6.2 7th Energy level
NA13,310.00 kJ/mol
Bohrium
7226.8 114300
1.9.2 8th Energy Level
NA15,250.00 kJ/mol
Hassium
8857.4 125300
1.11.1 9th Energy Level
NA17,370.00 kJ/mol
Yttrium
14110 134700
1.12.1 10th Energy Level
NA21,726.00 kJ/mol
Strontium
17100 144300
1.2.2 11th Energy Level
NA24,102.00 kJ/mol
Yttrium
19900 169988
1.5.2 12th Energy Level
NA66,320.00 kJ/mol
Molybdenum
22219 189368
1.6.4 13th Energy Level
NA73,010.00 kJ/mol
Molybdenum
26930 76015
1.8.6 14th Energy Level
NA80,160.00 kJ/mol
Molybdenum
29196 86450
1.4.2 15th Energy Level
NA89,490.00 kJ/mol
Manganese
41987 97510
2.2.4 16th Energy Level
NA97,400.00 kJ/mol
Iron
47206 109480
2.3.1 17th Energy Level
NA105,600.00 kJ/mol
Cobalt
52737 122200
2.4.2 18th Energy Level
NA117,000.00 kJ/mol
Nickel
58570 134810
3.4.2 19th Energy Level
NA124,270.00 kJ/mol
Copper
64702 148700
3.5.1 20th Energy Level
NANA
Molybdenum
80400 171200
3.7.5 21st Energy Level
NANA
Molybdenum
87000 179100
3.7.8 22nd Energy Level
NANA
Molybdenum
93400 184900
4.4.2 23rd Energy Level
NANA
Molybdenum
98420 198800
4.5.3 24th Energy Level
NANA
Molybdenum
104400 195200
4.5.8 25th Energy Level
NANA
Molybdenum
121900 121900
4.6.4 26th Energy Level
NANA
Molybdenum
127700 127700
4.6.9 27th Energy Level
NANA
Molybdenum
133800 133800
4.6.11 28th Energy Level
NANA
Molybdenum
139800 139800
4.7.4 29th Energy Level
NANA
Molybdenum
148100 148100
4.8.1 30th Energy Level
NANA
Molybdenum
154500 154500
4.10 Electrochemical Equivalent
3.21 g/amp-hr0.56 g/amp-hr
Beryllium
0.16812 8.3209
5.3 Electron Work Function
NA3.50 eV
Cesium
2.14 5.65
7.6 Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity
Corrosion, Flammable, Ionization, Radioactive Isotopes, Solubility
8 Atomic
8.1 Atomic Number
10121
Lithium
3 117
9.2 Electron Configuration
[Rn] 5f13 7s2
[Ar] 3d1 4s2
9.3 Crystal Structure
Not Known
Hexagonal Close Packed (HCP)
9.3.2 Crystal Lattice
9.4 Atom
9.4.1 Number of Protons
10121
Lithium
3 117
10.1.4 Number of Neutrons
15724
Lithium
4 184
10.6.2 Number of Electrons
10121
Lithium
3 117
10.9 Radius of an Atom
10.9.1 Atomic Radius
NA162.00 pm
Beryllium
112 265
10.10.2 Covalent Radius
NA170.00 pm
Beryllium
96 260
10.12.2 Van der Waals Radius
246.00 pm211.00 pm
Zinc
139 348
10.13 Atomic Weight
258.00 amu44.96 amu
Lithium
6.94 294
10.16 Atomic Volume
NA15.00 cm3/mol
Manganese
1.39 71.07
10.21 Adjacent Atomic Numbers
10.21.1 Previous Element
10.21.2 Next Element
10.22 Valence Electron Potential
NA58.00 (-eV)
Francium
8 392.42
10.26 Lattice Constant
NA330.90 pm
Beryllium
228.58 891.25
13.2 Lattice Angles
NA
π/2, π/2, 2 π/3
13.3 Lattice C/A Ratio
NA1.59
Beryllium
1.567 1.886
14 Mechanical
14.1 Density
14.1.1 Density At Room Temperature
NA2.99 g/cm3
Lithium
0.534 40.7
15.2.4 Density When Liquid (at m.p.)
NA2.80 g/cm3
Lithium
0.512 20
15.5 Tensile Strength
NANA
Indium
2.5 11000
15.7 Viscosity
NANA
Mercury
0.001526 0.001526
15.9 Vapor Pressure
15.9.1 Vapor Pressure at 1000 K
NA0.00 (Pa)
Cerium
2.47E-11 121
15.10.2 Vapor Pressure at 2000 K
NA91.30 (Pa)
Tungsten
2.62E-10 774
15.12 Elasticity properties
15.12.1 Shear Modulus
NA29.10 GPa
Potassium
1.3 222
15.17.2 Bulk Modulus
NA56.60 GPa
Cesium
1.6 462
15.17.7 Young's Modulus
NA74.40 GPa
Cesium
1.7 528
15.21 Poisson Ratio
NA0.28
Beryllium
0.032 0.47
16.2 Other Mechanical Properties
Unknown
NA
17 Magnetic
17.1 Magnetic Characteristics
17.1.1 Specific Gravity
NA2.99
Lithium
0.53 4500
17.1.8 Magnetic Ordering
Unknown
Paramagnetic
17.1.9 Permeability
NANA
Bismuth
1.25643E-06 0.0063
17.2.5 Susceptibility
NANA
Bismuth
-0.000166 200000
17.5 Electrical Properties
17.5.1 Electrical Property
Unknown
Conductor
17.5.2 Resistivity
NA562.00 nΩ·m
Thallium
0.18 961
17.6.2 Electrical Conductivity
NA0.02 106/cm Ω
Plutonium
0.00666 0.63
18.1.2 Electron Affinity
NA18.10 kJ/mol
Mercury
0 222.8
20 Thermal
20.1 Specific Heat
NA0.60 J/(kg K)
Americium
0.11 3.6
20.4 Molar Heat Capacity
NA25.52 J/mol·K
Beryllium
16.443 62.7
20.6 Thermal Conductivity
NA15.80 W/m·K
Neptunium
6.3 429
1.3 Critical Temperature
NANA
Ytterbium
26.3 3223
1.7 Thermal Expansion
NA10.20 µm/(m·K)
Tungsten
4.5 97
1.10 Enthalpy
1.10.1 Enthalpy of Vaporization
NA314.20 kJ/mol
Zinc
7.32 799.1
1.12.3 Enthalpy of Fusion
NA14.10 kJ/mol
Cesium
2.1 35.23
2.3.1 Enthalpy of Atomization
NA343.00 kJ/mol
Mercury
61.5 837
2.9 Standard Molar Entropy
NA34.60 J/mol.K
Beryllium
9.5 198.1