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Ytterbium
Ytterbium

Americium
Americium



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Ytterbium
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Ytterbium vs Americium

1 Periodic Table
1.1 Symbol
Yb
Am
1.2 Group Number
NANA
Gadolinium
0 17
1.3 Period Number
67
Lithium
2 7
1.4 Block
f block
f block
1.5 Element Family
Lanthanide
Actinide
1.6 CAS Number
74406447440359
Aluminium
7429905 54386242
1.7 Space Group Name
Fm_ 3m
P63/mmc
1.8 Space Group Number
225.00194.00
Plutonium
11 229
2 Facts
2.1 Interesting Facts
  • Ytterbium metal oxidizes rapidly if exposed to air.
  • Ytterbium metal can dissolve quickly in Mineral acid.
  • Americium metal is produced by bombarding Plutonium with Neutrons.
  • Americium metal was discovered as a by-product while testing an atomic bomb (Manhattan Project).
2.2 Sources
Found in Minerals, Mining, Ores of Minerals
Obtained By Bombarding Plutonium with Neutrons
2.3 History
2.3.1 Who Discovered
Jean Charles Galissard de Marignac
Glenn T. Seaborg, Ralph A. James, Leon O. Morgan, Albert Ghiorso
2.3.2 Discovery
In 1878
In 1944
2.4 Abundance
2.4.1 Abundance In Universe
2 * 10-7 %NA
Thallium
5E-09 0.11
2.5.1 Abundance In Sun
~0.0000001 %~-9999 %
Beryllium
1E-08 0.1
3.1.1 Abundance In Meteorites
0.00 %NA
Gold
1.7E-07 22
3.1.2 Abundance In Earth's Crust
0.00 %NA
Radium
9.9E-12 8.1
3.4.2 Abundance In Oceans
0.00 %NA
Protactinium
2E-23 1.1
3.4.4 Abundance In Humans
NANA
Radium
1E-13 1.4
4 Uses
4.1 Uses & Benefits
  • Ytterbium metal is used in memory devices and tuneable laser.
  • It is also used as industrial catalyst as the other catalysts are too toxic and polluting.
  • Americium metal is used in smoke detection alarms.
  • In the future, this metal has a potential to be used in batteries of spacecrafts.
4.1.1 Industrial Uses
Automobile Industry, Chemical Industry
NA
4.1.2 Medical Uses
NA
NA
4.1.3 Other Uses
Alloys
Alloys, Nuclear Research, Research Purposes
4.2 Biological Properties
4.2.1 Toxicity
Highly Toxic
Toxic
4.2.2 Present in Human Body
4.2.3 In Blood
NA0.00 Blood/mg dm-3
Plutonium
0 1970
4.2.4 In Bone
NA0.00 p.p.m.
Plutonium
0 170000
5 Physical
5.1 Melting Point
824.00 °C994.00 °C
Francium
27 3410
5.2 Boiling Point
1,196.00 °C2,607.00 °C
Flerovium
147 5660
5.4 Appearance
5.4.1 Physical State
Solid
Solid
5.4.2 Color
Silvery White
Silvery White
5.4.3 Luster
Metallic
NA
5.5 Hardness
5.5.1 Mohs Hardness
NANA
Cesium
0.2 8.5
5.6.1 Brinell Hardness
343.00 MPaNA
Cesium
0.14 3490
5.8.1 Vickers Hardness
206.00 MPaNA
Palladium
121 3430
5.10 Speed of Sound
1,590.00 m/sNA
Thallium
818 16200
5.13 Optical Properties
5.13.1 Refractive Index
NANA
Mercury
1.000933 1.7229
6.1.2 Reflectivity
NANA
Molybdenum
58 97
6.2 Allotropes
6.2.1 α Allotropes
Not Available
Not Available
6.2.2 β Allotropes
Not Available
Not Available
6.2.3 γ Allotropes
Not Available
Not Available
7 Chemical
7.1 Chemical Formula
Yb
Am
7.2 Isotopes
7.2.1 Known Isotopes
3016
Tennessine
0 38
7.3 Electronegativity
7.3.1 Pauling Electronegativity
NA1.30
Francium
0.7 2.54
7.4.1 Sanderson Electronegativity
NANA
Cesium
0.22 2.56
7.6.2 Allred Rochow Electronegativity
1.061.20
Cesium
0.86 1.82
7.6.4 Mulliken-Jaffe Electronegativity
NANA
Cesium
0.62 2.48
7.7.2 Allen Electronegativity
NANA
Cesium
0.659 2.7
7.8 Electropositivity
7.8.1 Pauling Electropositivity
NA2.70
Gold
1.46 3.3
7.9 Ionization Energies
7.9.1 1st Energy Level
603.40 kJ/mol578.00 kJ/mol
Cesium
375.7 26130
7.9.3 2nd Energy Level
1,174.80 kJ/mol1,158.00 kJ/mol
Ruthenium
710.2162 28750
7.9.4 3rd Energy Level
2,417.00 kJ/mol2,132.00 kJ/mol
Osmium
1600 34230
7.10.1 4th Energy Level
4,203.00 kJ/mol3,493.00 kJ/mol
Thorium
2780 37066
8.1.2 5th Energy Level
NANA
Dubnium
4305.2 97510
8.1.5 6th Energy Level
NANA
Seaborgium
5715.8 105800
8.1.7 7th Energy level
NANA
Bohrium
7226.8 114300
8.2.3 8th Energy Level
NANA
Hassium
8857.4 125300
8.2.5 9th Energy Level
NANA
Yttrium
14110 134700
8.2.6 10th Energy Level
NANA
Strontium
17100 144300
8.2.8 11th Energy Level
NANA
Yttrium
19900 169988
9.1.1 12th Energy Level
NANA
Molybdenum
22219 189368
9.2.1 13th Energy Level
NANA
Molybdenum
26930 76015
9.2.2 14th Energy Level
NANA
Molybdenum
29196 86450
9.3.1 15th Energy Level
NANA
Manganese
41987 97510
9.4.1 16th Energy Level
NANA
Iron
47206 109480
9.5.1 17th Energy Level
NANA
Cobalt
52737 122200
9.5.2 18th Energy Level
NANA
Nickel
58570 134810
9.6.2 19th Energy Level
NANA
Copper
64702 148700
9.6.4 20th Energy Level
NANA
Molybdenum
80400 171200
9.6.5 21st Energy Level
NANA
Molybdenum
87000 179100
9.6.7 22nd Energy Level
NANA
Molybdenum
93400 184900
9.6.8 23rd Energy Level
NANA
Molybdenum
98420 198800
9.7.1 24th Energy Level
NANA
Molybdenum
104400 195200
9.7.2 25th Energy Level
NANA
Molybdenum
121900 121900
9.7.3 26th Energy Level
NANA
Molybdenum
127700 127700
9.7.4 27th Energy Level
NANA
Molybdenum
133800 133800
9.7.5 28th Energy Level
NANA
Molybdenum
139800 139800
9.7.6 29th Energy Level
NANA
Molybdenum
148100 148100
9.7.7 30th Energy Level
NANA
Molybdenum
154500 154500
9.8 Electrochemical Equivalent
2.15 g/amp-hr3.02 g/amp-hr
Beryllium
0.16812 8.3209
9.9 Electron Work Function
NANA
Cesium
2.14 5.65
9.10 Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility
Ionization, Radioactive Isotopes, Radioactivity, Solubility
10 Atomic
10.1 Atomic Number
7095
Lithium
3 117
10.2 Electron Configuration
[Xe] 4f14 6s2
[Rn] 5f7 7s2
10.3 Crystal Structure
Face Centered Cubic (FCC)
Double Hexagonal Close Packed (DHCP)
10.3.1 Crystal Lattice
10.4 Atom
10.4.1 Number of Protons
7095
Lithium
3 117
10.4.2 Number of Neutrons
103148
Lithium
4 184
10.4.3 Number of Electrons
7095
Lithium
3 117
10.5 Radius of an Atom
10.5.1 Atomic Radius
176.00 pm173.00 pm
Beryllium
112 265
10.5.2 Covalent Radius
187.00 pm180.00 pm
Beryllium
96 260
10.5.3 Van der Waals Radius
242.00 pm244.00 pm
Zinc
139 348
10.6 Atomic Weight
173.05 amu243.00 amu
Lithium
6.94 294
10.7 Atomic Volume
24.79 cm3/mol17.86 cm3/mol
Manganese
1.39 71.07
10.8 Adjacent Atomic Numbers
10.8.1 Previous Element
10.8.2 Next Element
10.9 Valence Electron Potential
50.30 (-eV)44.00 (-eV)
Francium
8 392.42
10.10 Lattice Constant
548.47 pm346.81 pm
Beryllium
228.58 891.25
10.11 Lattice Angles
π/2, π/2, π/2
π/2, π/2, 2 π/3
10.12 Lattice C/A Ratio
NANA
Beryllium
1.567 1.886
11 Mechanical
11.1 Density
11.1.1 Density At Room Temperature
6.90 g/cm312.00 g/cm3
Lithium
0.534 40.7
11.1.2 Density When Liquid (at m.p.)
6.21 g/cm3NA
Lithium
0.512 20
11.2 Tensile Strength
58.00 MPaNA
Indium
2.5 11000
11.3 Viscosity
NANA
Mercury
0.001526 0.001526
11.4 Vapor Pressure
11.4.1 Vapor Pressure at 1000 K
NA0.00 (Pa)
Cerium
2.47E-11 121
11.4.2 Vapor Pressure at 2000 K
NANA
Tungsten
2.62E-10 774
11.5 Elasticity properties
11.5.1 Shear Modulus
9.90 GPaNA
Potassium
1.3 222
11.5.2 Bulk Modulus
30.50 GPaNA
Cesium
1.6 462
11.5.3 Young's Modulus
23.90 GPaNA
Cesium
1.7 528
11.6 Poisson Ratio
0.21NA
Beryllium
0.032 0.47
11.7 Other Mechanical Properties
Ductile, Malleable
NA
12 Magnetic
12.1 Magnetic Characteristics
12.1.1 Specific Gravity
6.9713.67
Lithium
0.53 4500
12.1.2 Magnetic Ordering
Paramagnetic
Paramagnetic
12.1.3 Permeability
NANA
Bismuth
1.25643E-06 0.0063
12.1.4 Susceptibility
NANA
Bismuth
-0.000166 200000
12.2 Electrical Properties
12.2.1 Electrical Property
Conductor
Unknown
12.2.2 Resistivity
0.25 nΩ·m0.69 nΩ·m
Thallium
0.18 961
12.2.3 Electrical Conductivity
0.04 106/cm Ω0.02 106/cm Ω
Plutonium
0.00666 0.63
12.2.4 Electron Affinity
50.00 kJ/molNA
Mercury
0 222.8
13 Thermal
13.1 Specific Heat
0.15 J/(kg K)0.11 J/(kg K)
Palladium
0.11 3.6
13.2 Molar Heat Capacity
26.74 J/mol·K62.70 J/mol·K
Beryllium
16.443 62.7
13.3 Thermal Conductivity
38.50 W/m·K10.00 W/m·K
Neptunium
6.3 429
13.4 Critical Temperature
26.30 KNA
Mercury
26.3 3223
13.5 Thermal Expansion
26.30 µm/(m·K)NA
Tungsten
4.5 97
13.6 Enthalpy
13.6.1 Enthalpy of Vaporization
128.90 kJ/molNA
Zinc
7.32 799.1
13.6.2 Enthalpy of Fusion
7.66 kJ/mol14.39 kJ/mol
Cesium
2.1 35.23
13.6.3 Enthalpy of Atomization
180.00 kJ/mol268.00 kJ/mol
Mercury
61.5 837
13.7 Standard Molar Entropy
59.90 J/mol.KNA
Beryllium
9.5 198.1