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Niobium
Niobium

Americium
Americium



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Niobium vs Americium

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1 Periodic Table
1.1 Symbol
Nb
Am
1.2 Group Number
5NA
Gadolinium
0 17
1.3 Period Number
57
Lithium
2 7
1.4 Block
d block
f block
1.5 Element Family
Transition Metal
Actinide
1.6 CAS Number
74400317440359
Aluminium
7429905 54386242
1.7 Space Group Name
Im_ 3m
P63/mmc
1.8 Space Group Number
229.00194.00
Plutonium
11 229
2 Facts
2.1 Interesting Facts
  • Niobium metal was used to get called Columbium in past.
  • Niobium metal found freely in nature (abundance).
  • 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
By-product of Tin Extraction, Found in Minerals, Mining, Ores of Minerals
Obtained By Bombarding Plutonium with Neutrons
2.3 History
2.3.1 Who Discovered
Charles Hatchett
Glenn T. Seaborg, Ralph A. James, Leon O. Morgan, Albert Ghiorso
2.3.2 Discovery
In 1801
In 1944
2.4 Abundance
2.4.1 Abundance In Universe
2 * 10-7 %NA
Thallium
5E-09 0.11
2.4.2 Abundance In Sun
~0.0000004 %~-9999 %
Beryllium
1E-08 0.1
2.4.3 Abundance In Meteorites
0.00 %NA
Gold
1.7E-07 22
2.4.4 Abundance In Earth's Crust
0.00 %NA
Radium
9.9E-12 8.1
2.4.5 Abundance In Oceans
0.00 %NA
Protactinium
2E-23 1.1
2.4.6 Abundance In Humans
NANA
Radium
1E-13 1.4
3 Uses
3.1 Uses & Benefits
  • Niobium alloys are used in jet engines and rockets and spacecraft, beams and girders for buildings and oil and gas pipelines.
  • It is used superconducting magnets in particles accelerators, NMR and MRI equipment.
  • Americium metal is used in smoke detection alarms.
  • In the future, this metal has a potential to be used in batteries of spacecrafts.
3.1.1 Industrial Uses
Aerospace Industry, Ammunition Industry, Electrical Industry, Electronic Industry
NA
3.1.2 Medical Uses
NA
NA
3.1.3 Other Uses
Alloys
Alloys, Nuclear Research, Research Purposes
3.2 Biological Properties
3.2.1 Toxicity
Low Toxic
Toxic
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
0.07 p.p.m.0.00 p.p.m.
Plutonium
0 170000
4 Physical
4.1 Melting Point
2,468.00 °C994.00 °C
Francium
27 3410
4.2 Boiling Point
2,468.00 °C2,607.00 °C
Flerovium
147 5660
4.3 Appearance
4.3.1 Physical State
Solid
Solid
4.3.2 Color
Gray
Silvery White
4.3.3 Luster
Metallic
NA
4.4 Hardness
4.4.1 Mohs Hardness
6.00NA
Cesium
0.2 8.5
4.4.2 Brinell Hardness
735.00 MPaNA
Cesium
0.14 3490
4.4.3 Vickers Hardness
870.00 MPaNA
Palladium
121 3430
4.5 Speed of Sound
3,480.00 m/sNA
Thallium
818 16200
4.6 Optical Properties
4.6.1 Refractive Index
NANA
Mercury
1.000933 1.7229
4.6.2 Reflectivity
NANA
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
Nb
Am
5.2 Isotopes
5.2.1 Known Isotopes
1716
Tennessine
0 38
5.3 Electronegativity
5.3.1 Pauling Electronegativity
1.601.30
Francium
0.7 2.54
5.3.2 Sanderson Electronegativity
1.42NA
Cesium
0.22 2.56
5.3.3 Allred Rochow Electronegativity
1.231.20
Cesium
0.86 1.82
5.3.4 Mulliken-Jaffe Electronegativity
NANA
Cesium
0.62 2.48
5.3.5 Allen Electronegativity
1.41NA
Cesium
0.659 2.7
5.4 Electropositivity
5.4.1 Pauling Electropositivity
2.402.70
Gold
1.46 3.3
5.5 Ionization Energies
5.5.1 1st Energy Level
652.10 kJ/mol578.00 kJ/mol
Cesium
375.7 26130
5.5.2 2nd Energy Level
1,380.00 kJ/mol1,158.00 kJ/mol
Ruthenium
710.2162 28750
1.1.2 3rd Energy Level
2,416.00 kJ/mol2,132.00 kJ/mol
Osmium
1600 34230
1.1.3 4th Energy Level
3,700.00 kJ/mol3,493.00 kJ/mol
Thorium
2780 37066
1.1.4 5th Energy Level
4,877.00 kJ/molNA
Dubnium
4305.2 97510
1.1.6 6th Energy Level
9,847.00 kJ/molNA
Seaborgium
5715.8 105800
1.1.7 7th Energy level
12,100.00 kJ/molNA
Bohrium
7226.8 114300
1.1.8 8th Energy Level
NANA
Hassium
8857.4 125300
1.1.9 9th Energy Level
NANA
Yttrium
14110 134700
1.2.1 10th Energy Level
NANA
Strontium
17100 144300
1.2.2 11th Energy Level
NANA
Yttrium
19900 169988
1.3.1 12th Energy Level
NANA
Molybdenum
22219 189368
1.4.2 13th Energy Level
NANA
Molybdenum
26930 76015
1.4.3 14th Energy Level
NANA
Molybdenum
29196 86450
1.4.5 15th Energy Level
NANA
Manganese
41987 97510
1.4.6 16th Energy Level
NANA
Iron
47206 109480
1.5.2 17th Energy Level
NANA
Cobalt
52737 122200
1.5.3 18th Energy Level
NANA
Nickel
58570 134810
1.5.4 19th Energy Level
NANA
Copper
64702 148700
1.5.6 20th Energy Level
NANA
Molybdenum
80400 171200
1.5.7 21st Energy Level
NANA
Molybdenum
87000 179100
1.5.8 22nd Energy Level
NANA
Molybdenum
93400 184900
1.5.9 23rd Energy Level
NANA
Molybdenum
98420 198800
1.5.10 24th Energy Level
NANA
Molybdenum
104400 195200
1.5.12 25th Energy Level
NANA
Molybdenum
121900 121900
1.5.13 26th Energy Level
NANA
Molybdenum
127700 127700
1.5.14 27th Energy Level
NANA
Molybdenum
133800 133800
1.5.15 28th Energy Level
NANA
Molybdenum
139800 139800
1.6.1 29th Energy Level
NANA
Molybdenum
148100 148100
1.6.2 30th Energy Level
NANA
Molybdenum
154500 154500
1.7 Electrochemical Equivalent
0.69 g/amp-hr3.02 g/amp-hr
Beryllium
0.16812 8.3209
1.9 Electron Work Function
4.30 eVNA
Cesium
2.14 5.65
1.10 Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes, Solubility
Ionization, Radioactive Isotopes, Radioactivity, Solubility
2 Atomic
2.1 Atomic Number
4195
Lithium
3 117
2.2 Electron Configuration
[Kr] 4d4 5s1
[Rn] 5f7 7s2
2.3 Crystal Structure
Body Centered Cubic (BCC)
Double Hexagonal Close Packed (DHCP)
2.3.1 Crystal Lattice
2.4 Atom
2.4.1 Number of Protons
4195
Lithium
3 117
2.4.2 Number of Neutrons
52148
Lithium
4 184
2.4.3 Number of Electrons
4195
Lithium
3 117
2.5 Radius of an Atom
2.5.1 Atomic Radius
146.00 pm173.00 pm
Beryllium
112 265
2.5.2 Covalent Radius
164.00 pm180.00 pm
Beryllium
96 260
2.5.3 Van der Waals Radius
200.00 pm244.00 pm
Zinc
139 348
2.6 Atomic Weight
92.91 amu243.00 amu
Lithium
6.94 294
2.7 Atomic Volume
10.87 cm3/mol17.86 cm3/mol
Manganese
1.39 71.07
2.8 Adjacent Atomic Numbers
2.8.1 Previous Element
2.8.2 Next Element
2.9 Valence Electron Potential
104.00 (-eV)44.00 (-eV)
Francium
8 392.42
2.10 Lattice Constant
330.04 pm346.81 pm
Beryllium
228.58 891.25
2.11 Lattice Angles
π/2, π/2, π/2
π/2, π/2, 2 π/3
2.12 Lattice C/A Ratio
NANA
Beryllium
1.567 1.886
3 Mechanical
3.1 Density
3.1.1 Density At Room Temperature
8.57 g/cm312.00 g/cm3
Lithium
0.534 40.7
3.1.2 Density When Liquid (at m.p.)
NANA
Lithium
0.512 20
3.2 Tensile Strength
330.00 MPaNA
Indium
2.5 11000
3.3 Viscosity
NANA
Mercury
0.001526 0.001526
3.4 Vapor Pressure
3.4.1 Vapor Pressure at 1000 K
NA0.00 (Pa)
Cerium
2.47E-11 121
3.4.2 Vapor Pressure at 2000 K
0.00 (Pa)NA
Tungsten
2.62E-10 774
3.5 Elasticity properties
3.5.1 Shear Modulus
38.00 GPaNA
Potassium
1.3 222
3.5.2 Bulk Modulus
170.00 GPaNA
Cesium
1.6 462
3.5.3 Young's Modulus
105.00 GPaNA
Cesium
1.7 528
3.6 Poisson Ratio
0.40NA
Beryllium
0.032 0.47
3.7 Other Mechanical Properties
Ductile, Malleable
NA
4 Magnetic
4.1 Magnetic Characteristics
4.1.1 Specific Gravity
8.5713.67
Lithium
0.53 4500
4.1.2 Magnetic Ordering
Paramagnetic
Paramagnetic
4.1.3 Permeability
NANA
Bismuth
1.25643E-06 0.0063
4.1.4 Susceptibility
NANA
Bismuth
-0.000166 200000
4.2 Electrical Properties
4.2.1 Electrical Property
Conductor
Unknown
4.2.2 Resistivity
152.00 nΩ·m0.69 nΩ·m
Thallium
0.18 961
4.2.3 Electrical Conductivity
0.07 106/cm Ω0.02 106/cm Ω
Plutonium
0.00666 0.63
4.2.4 Electron Affinity
86.10 kJ/molNA
Mercury
0 222.8
5 Thermal
5.1 Specific Heat
0.26 J/(kg K)0.11 J/(kg K)
Palladium
0.11 3.6
5.2 Molar Heat Capacity
24.60 J/mol·K62.70 J/mol·K
Beryllium
16.443 62.7
5.3 Thermal Conductivity
53.70 W/m·K10.00 W/m·K
Neptunium
6.3 429
5.4 Critical Temperature
NANA
Ytterbium
26.3 3223
5.5 Thermal Expansion
7.30 µm/(m·K)NA
Tungsten
4.5 97
5.6 Enthalpy
5.6.1 Enthalpy of Vaporization
696.60 kJ/molNA
Zinc
7.32 799.1
5.6.2 Enthalpy of Fusion
27.20 kJ/mol14.39 kJ/mol
Cesium
2.1 35.23
5.6.3 Enthalpy of Atomization
745.00 kJ/mol268.00 kJ/mol
Mercury
61.5 837
5.7 Standard Molar Entropy
36.40 J/mol.KNA
Beryllium
9.5 198.1