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Moscovium
Moscovium

Protactinium
Protactinium



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Protactinium

Moscovium vs Protactinium

1 Periodic Table
1.1 Symbol
Mc
Pa
1.2 Group Number
15NA
Gadolinium
0 17
1.3 Period Number
77
Lithium
2 7
1.4 Block
p block
f block
1.5 Element Family
Probably Post-​Transition
Actinide
1.6 CAS Number
540856427440133
Aluminium
7429905 54386242
1.7 Space Group Name
Not Available
I4/mmm
1.8 Space Group Number
NA139.00
Plutonium
11 229
2 Facts
2.1 Interesting Facts
Not Available
  • Protactinium metal has 29 isotopes.
  • Isotopes of Protactinium-231 used in nuclear weapon.
2.2 Sources
Synthetically Produced
Found in Uranium Ores, Mining, Ores of metals
2.3 History
2.3.1 Who Discovered
Joint Institute for Nuclear Research and Lawrence Livermore National Laboratory
William Crookes
2.3.2 Discovery
In 2003
In 1900
2.4 Abundance
2.4.1 Abundance In Universe
NANA
Thallium
5E-09 0.11
2.4.4 Abundance In Sun
~-9999 %~-9999 %
Beryllium
1E-08 0.1
2.4.7 Abundance In Meteorites
NANA
Gold
1.7E-07 22
2.4.9 Abundance In Earth's Crust
NA0.00 %
Radium
9.9E-12 8.1
2.4.12 Abundance In Oceans
NA0.00 %
Tin
2E-23 1.1
2.4.15 Abundance In Humans
NANA
Radium
1E-13 1.4
3 Uses
3.1 Uses & Benefits
  • Currently known uses of Ununpentium metal are limited to research purpose only.
  • Currently known uses of Protactinium metal are limited to research purpose only.
3.1.1 Industrial Uses
NA
NA
3.1.2 Medical Uses
NA
NA
3.1.3 Other Uses
Research Purposes
NA
3.2 Biological Properties
3.2.1 Toxicity
Unknown
Highly Toxic
3.2.2 Present in Human Body
3.2.3 In Blood
NA0.00 Blood/mg dm-3
Plutonium
0 1970
3.2.6 In Bone
NA0.00 p.p.m.
Plutonium
0 170000
4 Physical
4.1 Melting Point
400.00 °C1,568.00 °C
Francium
27 3410
4.2 Boiling Point
1,100.00 °C4,027.00 °C
Flerovium
147 5660
4.3 Appearance
4.3.1 Physical State
Solid
Solid
4.3.2 Color
Unknown
Silver
4.3.3 Luster
Unknown Luster
Metallic
4.4 Hardness
4.4.1 Mohs Hardness
NANA
Cesium
0.2 8.5
4.4.5 Brinell Hardness
NANA
Cesium
0.14 3490
4.4.9 Vickers Hardness
NANA
Palladium
121 3430
4.5 Speed of Sound
NANA
Thallium
818 16200
4.6 Optical Properties
4.6.1 Refractive Index
NANA
Mercury
1.000933 1.7229
4.6.4 Reflectivity
NANA
Molybdenum
58 97
4.8 Allotropes
4.8.1 α Allotropes
Not Available
Not Available
4.8.2 β Allotropes
Not Available
Not Available
4.8.4 γ Allotropes
Not Available
Not Available
5 Chemical
5.1 Chemical Formula
Mc
Pa
5.2 Isotopes
5.2.1 Known Isotopes
527
Tennessine
0 38
5.4 Electronegativity
5.4.1 Pauling Electronegativity
NA1.50
Francium
0.7 2.54
6.1.2 Sanderson Electronegativity
NANA
Cesium
0.22 2.56
6.4.2 Allred Rochow Electronegativity
NA1.14
Cesium
0.86 1.82
6.4.4 Mulliken-Jaffe Electronegativity
NANA
Cesium
0.62 2.48
6.4.7 Allen Electronegativity
NANA
Cesium
0.659 2.7
6.5 Electropositivity
6.5.1 Pauling Electropositivity
NA2.50
Gold
1.46 3.3
6.7 Ionization Energies
6.7.1 1st Energy Level
538.40 kJ/mol568.00 kJ/mol
Cesium
375.7 26130
6.7.3 2nd Energy Level
1,756.00 kJ/mol1,128.00 kJ/mol
Ruthenium
710.2162 28750
6.7.5 3rd Energy Level
2,653.30 kJ/mol1,814.00 kJ/mol
Osmium
1600 34230
6.7.8 4th Energy Level
4,679.50 kJ/mol2,991.00 kJ/mol
Thorium
2780 37066
6.8.2 5th Energy Level
5,721.60 kJ/molNA
Dubnium
4305.2 97510
6.9.1 6th Energy Level
NANA
Seaborgium
5715.8 105800
6.12.1 7th Energy level
NANA
Bohrium
7226.8 114300
6.13.1 8th Energy Level
NANA
Hassium
8857.4 125300
6.14.1 9th Energy Level
NANA
Yttrium
14110 134700
6.16.1 10th Energy Level
NANA
Strontium
17100 144300
7.2.1 11th Energy Level
NANA
Yttrium
19900 169988
8.1.2 12th Energy Level
NANA
Molybdenum
22219 189368
8.3.1 13th Energy Level
NANA
Molybdenum
26930 76015
8.7.2 14th Energy Level
NANA
Molybdenum
29196 86450
8.7.4 15th Energy Level
NANA
Manganese
41987 97510
8.8.1 16th Energy Level
NANA
Iron
47206 109480
8.8.3 17th Energy Level
NANA
Cobalt
52737 122200
8.8.6 18th Energy Level
NANA
Nickel
58570 134810
8.8.7 19th Energy Level
NANA
Copper
64702 148700
8.8.9 20th Energy Level
NANA
Molybdenum
80400 171200
8.10.2 21st Energy Level
NANA
Molybdenum
87000 179100
8.10.3 22nd Energy Level
NANA
Molybdenum
93400 184900
9.1.2 23rd Energy Level
NANA
Molybdenum
98420 198800
9.1.6 24th Energy Level
NANA
Molybdenum
104400 195200
9.1.7 25th Energy Level
NANA
Molybdenum
121900 121900
9.1.10 26th Energy Level
NANA
Molybdenum
127700 127700
9.2.3 27th Energy Level
NANA
Molybdenum
133800 133800
9.2.4 28th Energy Level
NANA
Molybdenum
139800 139800
9.3.2 29th Energy Level
NANA
Molybdenum
148100 148100
9.3.3 30th Energy Level
NANA
Molybdenum
154500 154500
9.4 Electrochemical Equivalent
NA1.72 g/amp-hr
Beryllium
0.16812 8.3209
10.2 Electron Work Function
NANA
Cesium
2.14 5.65
10.4 Other Chemical Properties
Chemical Stability, Ionization
Ionization, Radioactive Isotopes, Radioactivity
11 Atomic
11.1 Atomic Number
11591
Lithium
3 117
11.5 Electron Configuration
[Rn] 5f14 6d10 7s2 7p3
[Rn] 5f2 6d1 7s2
11.6 Crystal Structure
Not Known
Tetragonal (TETR)
11.6.1 Crystal Lattice
11.7 Atom
11.7.1 Number of Protons
11591
Lithium
3 117
11.8.1 Number of Neutrons
159122
Lithium
4 184
11.10.1 Number of Electrons
11591
Lithium
3 117
11.14 Radius of an Atom
11.14.1 Atomic Radius
NA163.00 pm
Beryllium
112 265
12.1.3 Covalent Radius
NA200.00 pm
Beryllium
96 260
12.1.4 Van der Waals Radius
NA243.00 pm
Zinc
139 348
12.2 Atomic Weight
289.00 amu231.04 amu
Lithium
6.94 294
12.4 Atomic Volume
NA15.00 cm3/mol
Manganese
1.39 71.07
12.6 Adjacent Atomic Numbers
12.6.1 Previous Element
12.6.2 Next Element
12.7 Valence Electron Potential
NA92.00 (-eV)
Francium
8 392.42
12.8 Lattice Constant
NA392.50 pm
Beryllium
228.58 891.25
12.10 Lattice Angles
NA
π/2, π/2, π/2
12.11 Lattice C/A Ratio
NANA
Beryllium
1.567 1.886
13 Mechanical
13.1 Density
13.1.1 Density At Room Temperature
4.51 g/cm315.37 g/cm3
Lithium
0.534 40.7
13.1.2 Density When Liquid (at m.p.)
NANA
Lithium
0.512 20
13.2 Tensile Strength
NANA
Indium
2.5 11000
13.3 Viscosity
NANA
Mercury
0.001526 0.001526
13.5 Vapor Pressure
13.5.1 Vapor Pressure at 1000 K
NANA
Cerium
2.47E-11 121
13.5.2 Vapor Pressure at 2000 K
NANA
Tungsten
2.62E-10 774
13.6 Elasticity properties
13.6.1 Shear Modulus
NANA
Potassium
1.3 222
13.6.3 Bulk Modulus
NANA
Cesium
1.6 462
13.6.4 Young's Modulus
NANA
Cesium
1.7 528
13.7 Poisson Ratio
NANA
Beryllium
0.032 0.47
13.8 Other Mechanical Properties
Unknown
Unknown
14 Magnetic
14.1 Magnetic Characteristics
14.1.1 Specific Gravity
NA15.37
Lithium
0.53 4500
14.2.1 Magnetic Ordering
Paramagnetic
Paramagnetic
14.2.2 Permeability
NANA
Bismuth
1.25643E-06 0.0063
14.2.3 Susceptibility
NANA
Bismuth
-0.000166 200000
15.2 Electrical Properties
15.2.1 Electrical Property
Unknown
Conductor
15.2.2 Resistivity
NA177.00 nΩ·m
Thallium
0.18 961
15.2.3 Electrical Conductivity
NA0.05 106/cm Ω
Plutonium
0.00666 0.63
15.2.6 Electron Affinity
NANA
Mercury
0 222.8
16 Thermal
16.1 Specific Heat
NA0.12 J/(kg K)
Americium
0.11 3.6
16.3 Molar Heat Capacity
NANA
Beryllium
16.443 62.7
16.4 Thermal Conductivity
NA47.00 W/m·K
Neptunium
6.3 429
16.5 Critical Temperature
NANA
Ytterbium
26.3 3223
16.6 Thermal Expansion
NA9.90 µm/(m·K)
Tungsten
4.5 97
16.7 Enthalpy
16.7.1 Enthalpy of Vaporization
NANA
Zinc
7.32 799.1
16.7.2 Enthalpy of Fusion
NA12.34 kJ/mol
Cesium
2.1 35.23
17.1.1 Enthalpy of Atomization
NANA
Mercury
61.5 837
17.2 Standard Molar Entropy
NA198.10 J/mol.K
Beryllium
9.5 198.1