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Uranium vs Potassium

Uranium
Potassium
Potassium vs Uranium


Periodic Table
Symbol
U  
K  
Group Number
0  
18
1  
17
Period Number
7  
4  
Block
f block  
s block  
Element Family
Actinide  
Alkali  
CAS Number
7440611  
28
7440097  
99+
Space Group Name
Cmcm  
Im_ 3m  
Space Group Number
63.00  
13
229.00  
2
Facts
Interesting Facts
  • Major mining countries of Uranium include Russia, Australia, Namibia, Canada and Niger and total 33% Uranium are mine in Kazakhstan.
  
  • In the list of most abundant element Potassium is ranked 7th.
  • Potassium can easily be sliced (chopped) down using knife.
  
Sources
Earth's crust, Mining, Ores of Minerals  
Found in Minerals, Mining  
History
  
  
Who Discovered
-  
Humphry Davy  
Discovery
In 1789  
In 1807  
Abundance
  
  
Abundance In Universe
0.00 %  
30
0.00 %  
10
Abundance In Sun
0.00 %  
26
0.00 %  
9
Abundance In Meteorites
0.00 %  
99+
0.07 %  
9
Abundance In Earth's Crust
0.00 %  
36
1.50 %  
6
Abundance In Oceans
0.00 %  
11
0.04 %  
3
Abundance In Humans
0.00 %  
24
0.20 %  
3
Uses
Uses & Benefits
  • The main use of this metal include nuclear fuel which is used to generate electricity yin nuclear power stations.
  • Synthetic elements like transuranium are made from Uranium metal.
  
  • Potassium’s compounds are in high demand for their application in Fertilizer manufacturing.
  • Potassium carbonate is used in glass manufacturing and Potassium carbonate in manufacturing detergent and body wash.
  
Industrial Uses
Ammunition Industry, Chemical Industry  
Ammunition Industry, Chemical Industry  
Medical Uses
-  
Pharmaceutical Industry  
Other Uses
Alloys, Jewellery, Nuclear Reactor's Fuel, Sculptures, Statues  
-  
Biological Properties
  
  
Toxicity
Toxic  
Toxic  
Present in Human Body
No  
Yes  
In Blood
0.00 Blood/mg dm-3  
37
1,620.00 Blood/mg dm-3  
2
In Bone
1.20 p.p.m.  
19
2,100.00 p.p.m.  
3
Physical
Melting Point
1,132.00 °C  
39
63.65 °C  
99+
Boiling Point
3,818.00 °C  
16
774.00 °C  
99+
Appearance
  
  
Physical State
Solid  
Solid  
Color
Silvery Gray  
Silvery Gray  
Luster
Metallic  
-  
Hardness
  
  
Mohs Hardness
6.00  
6
0.40  
25
Brinell Hardness
2,350.00 MPa  
2
0.36 MPa  
99+
Vickers Hardness
1,960.00 MPa  
6
100.00 MPa  
99+
Speed of Sound
3,155.00 m/s  
36
2,000.00 m/s  
99+
Optical Properties
  
  
Refractive Index
1.38  
40
1.33  
99+
Reflectivity
80.00 %  
7
72.00 %  
11
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
U  
K  
Isotopes
  
  
Known Isotopes
25  
14
20  
19
Electronegativity
  
  
Pauling Electronegativity
1.38  
29
0.82  
99+
Sanderson Electronegativity
1.38  
22
0.45  
99+
Allred Rochow Electronegativity
1.22  
27
0.91  
40
Mulliken-Jaffe Electronegativity
1.38  
29
0.73  
99+
Allen Electronegativity
1.38  
36
0.73  
99+
Electropositivity
  
  
Pauling Electropositivity
2.62  
26
3.18  
3
Ionization Energies
  
  
1st Energy Level
597.60 kJ/mol  
99+
418.80 kJ/mol  
99+
2nd Energy Level
1,420.00 kJ/mol  
99+
3,052.00 kJ/mol  
5
3rd Energy Level
1,900.00 kJ/mol  
99+
4,420.00 kJ/mol  
8
4th Energy Level
3,145.00 kJ/mol  
99+
5,877.00 kJ/mol  
18
5th Energy Level
5,976.00 kJ/mol  
99+
7,975.00 kJ/mol  
14
6th Energy Level
5,976.00 kJ/mol  
99+
9,590.00 kJ/mol  
19
7th Energy level
5,970.00 kJ/mol  
99+
11,343.00 kJ/mol  
17
8th Energy Level
5,976.00 kJ/mol  
99+
14,944.00 kJ/mol  
13
9th Energy Level
5,976.00 kJ/mol  
99+
16,963.70 kJ/mol  
15
10th Energy Level
5,976.00 kJ/mol  
99+
48,610.00 kJ/mol  
3
11th Energy Level
5,976.00 kJ/mol  
99+
54,490.00 kJ/mol  
4
12th Energy Level
5,970.00 kJ/mol  
99+
60,730.00 kJ/mol  
15
13th Energy Level
5,970.00 kJ/mol  
99+
68,950.00 kJ/mol  
4
14th Energy Level
5,970.00 kJ/mol  
34
75,900.00 kJ/mol  
5
15th Energy Level
59,700.00 kJ/mol  
99+
83,080.00 kJ/mol  
13
16th Energy Level
59,700.00 kJ/mol  
35
93,400.00 kJ/mol  
7
17th Energy Level
597.60 kJ/mol  
99+
99,710.00 kJ/mol  
8
18th Energy Level
5,976.00 kJ/mol  
99+
4,196.00 kJ/mol  
99+
19th Energy Level
597.60 kJ/mol  
99+
419.20 kJ/mol  
99+
20th Energy Level
597.00 kJ/mol  
99+
419.00 kJ/mol  
99+
21st Energy Level
597.60 kJ/mol  
99+
419.20 kJ/mol  
99+
22nd Energy Level
597.00 kJ/mol  
99+
419.00 kJ/mol  
99+
23rd Energy Level
597.60 kJ/mol  
99+
419.20 kJ/mol  
99+
24th Energy Level
597.60 kJ/mol  
99+
419.20 kJ/mol  
99+
25th Energy Level
597.60 kJ/mol  
99+
419.20 kJ/mol  
99+
26th Energy Level
597.60 kJ/mol  
99+
419.20 kJ/mol  
99+
27th Energy Level
597.60 kJ/mol  
99+
419.20 kJ/mol  
99+
28th Energy Level
597.60 kJ/mol  
99+
419.20 kJ/mol  
99+
29th Energy Level
597.60 kJ/mol  
99+
419.20 kJ/mol  
99+
30th Energy Level
597.60 kJ/mol  
99+
419.00 kJ/mol  
99+
Electrochemical Equivalent
1.48 g/amp-hr  
99+
1.46 g/amp-hr  
99+
Electron Work Function
3.63 eV  
99+
2.30 eV  
99+
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity  
Chemical Stability, Flammability, Ionization, Solubility  
Atomic
Atomic Number
92  
26
19  
99+
Electron Configuration
[Rn] 5f3 6d1 7s2  
[Ar] 4s1  
Crystal Structure
Orthorhombic (ORTH)  
Body Centered Cubic (BCC)  
Crystal Lattice
ORTH-Crystal-Structure-of-Uranium.jpg#100  
BCC-Crystal-Structure-.jpg#100  
Atom
  
  
Number of Protons
92  
26
19  
99+
Number of Neutrons
146  
14
20  
99+
Number of Electrons
92  
26
19  
99+
Radius of an Atom
  
  
Atomic Radius
156.00 pm  
31
227.00 pm  
4
Covalent Radius
196.00 pm  
14
203.00 pm  
9
Van der Waals Radius
186.00 pm  
40
275.00 pm  
7
Atomic Weight
238.03 amu  
21
39.10 amu  
99+
Atomic Volume
12.59 cm3/mol  
99+
45.46 cm3/mol  
4
Adjacent Atomic Numbers
  
  
Previous Element
Protactinium
  
Aluminium
  
Next Element
Neptunium
  
Calcium
  
Valence Electron Potential
170.00 (-eV)  
4
10.40 (-eV)  
99+
Lattice Constant
295.08 pm  
99+
532.80 pm  
13
Lattice Angles
π/2, π/2, π/2  
π/2, π/2, π/2  
Lattice C/A Ratio
1.02  
99+
1.69  
10
Mechanical
Density
  
  
Density At Room Temperature
19.10 g/cm3  
17
0.86 g/cm3  
99+
Density When Liquid (at m.p.)
17.30 g/cm3  
17
0.83 g/cm3  
99+
Tensile Strength
100.00 MPa  
28
16.00 MPa  
99+
Viscosity
0.00  
21
0.00  
9
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
37
0.00 (Pa)  
16
Vapor Pressure at 2000 K
0.01 (Pa)  
20
0.00 (Pa)  
34
Elasticity properties
  
  
Shear Modulus
111.00 GPa  
10
1.30 GPa  
99+
Bulk Modulus
100.00 GPa  
16
3.10 GPa  
99+
Young's Modulus
208.00 GPa  
11
3.53 GPa  
99+
Poisson Ratio
0.23  
30
0.35  
9
Other Mechanical Properties
Ductile, Malleable  
-  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
18.80  
19
0.86  
99+
Magnetic Ordering
Paramagnetic  
Paramagnetic  
Permeability
0.00 H/m  
16
0.00 H/m  
13
Susceptibility
0.00  
24
0.00  
23
Electrical Properties
  
  
Electrical Property
Poor Conductor  
Conductor  
Resistivity
0.28 nΩ·m  
99+
72.00 nΩ·m  
37
Electrical Conductivity
0.04 106/cm Ω  
99+
0.14 106/cm Ω  
16
Electron Affinity
50.60 kJ/mol  
25
48.40 kJ/mol  
27
Thermal
Specific Heat
0.12 J/(kg K)  
99+
0.75 J/(kg K)  
6
Molar Heat Capacity
27.67 J/mol·K  
18
29.60 J/mol·K  
8
Thermal Conductivity
27.50 W/m·K  
99+
102.50 W/m·K  
15
Critical Temperature
1,405.00 K  
99+
2,223.00 K  
14
Thermal Expansion
13.90 µm/(m·K)  
30
83.30 µm/(m·K)  
3
Enthalpy
  
  
Enthalpy of Vaporization
477.00 kJ/mol  
18
77.50 kJ/mol  
99+
Enthalpy of Fusion
15.48 kJ/mol  
19
2.32 kJ/mol  
99+
Enthalpy of Atomization
489.50 kJ/mol  
18
89.50 kJ/mol  
99+
Standard Molar Entropy
50.20 J/mol.K  
99+
64.70 J/mol.K  
19
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