Home
 Compare Metals

Rutherfordium vs Lead

Rutherfordium
Lead
Lead vs Rutherfordium


Periodic Table
Symbol
Rf  
Pb  
Group Number
4  
14
14  
4
Period Number
7  
6  
Block
d block  
p block  
Element Family
Transition Metal  
Post-​Transition  
CAS Number
53850365  
13
7439921  
99+
Space Group Name
-  
Fm_ 3m  
Space Group Number
166.00  
9
225.00  
3
Facts
Interesting Facts
  • Rutherfordium does not occur in nature as it is a synthetic element.
  • Till date Rutherfordium metal has 15 radioisotopes created synthetically.
  
  • Galena mineral contains almost 87% of Lead metal in it, Galena is sulfide mineral.
  • The best available source of Lead metal today is by recycling automobile batteries.
  
Sources
Bombarding Plutonium with Accelerated 113 to 115 MeV Neon Ions, Synthetically Produced  
Earth's crust, Found in Minerals, Mining, Ores of metals, Ores of Minerals  
History
  
  
Who Discovered
Joint Institute for Nuclear Research  
-  
Discovery
In 1964  
In Middle Easterns (7000 BCE)  
Abundance
  
  
Abundance In Universe
0.00 %  
40
0.00 %  
17
Abundance In Sun
-  
0.00 %  
18
Abundance In Meteorites
-  
0.00 %  
23
Abundance In Earth's Crust
-  
0.00 %  
26
Abundance In Oceans
-  
0.00 %  
22
Abundance In Humans
-  
0.00 %  
9
Uses
Uses & Benefits
  • Currently known uses of Rutherfordium metal are limited to research purpose only.
  
  • It is also used in insecticides, hair dyes and as an anti-knocking additive for petrol. But all these are banned by the government as Lead metal is known for detrimental to health.
  
Industrial Uses
-  
Chemical Industry, Electrical Industry, Electronic Industry  
Medical Uses
-  
Surgical Instruments Manufacturing  
Other Uses
Alloys, Research Purposes  
Alloys  
Biological Properties
  
  
Toxicity
-  
Toxic  
Present in Human Body
No  
Yes  
In Blood
0.00 Blood/mg dm-3  
40
0.21 Blood/mg dm-3  
11
In Bone
0.00 p.p.m.  
99+
30.00 p.p.m.  
10
Physical
Melting Point
2,100.00 °C  
11
327.50 °C  
99+
Boiling Point
5,500.00 °C  
3
1,740.00 °C  
99+
Appearance
  
  
Physical State
Solid  
Solid  
Color
-  
Gray  
Luster
Unknown Luster  
Metallic  
Hardness
  
  
Mohs Hardness
-  
1.50  
19
Brinell Hardness
1,300.00 MPa  
9
38.00 MPa  
99+
Vickers Hardness
550.00 MPa  
31
38.00 MPa  
99+
Speed of Sound
6,100.00 m/s  
5
1,190.00 m/s  
99+
Optical Properties
  
  
Refractive Index
1.30  
99+
2.02  
14
Reflectivity
65.00 %  
18
5.00 %  
39
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Rf  
Pb  
Isotopes
  
  
Known Isotopes
13  
26
35  
4
Electronegativity
  
  
Pauling Electronegativity
0.00  
99+
1.87  
14
Sanderson Electronegativity
1.90  
13
2.29  
4
Allred Rochow Electronegativity
1.30  
25
1.55  
12
Mulliken-Jaffe Electronegativity
1.30  
33
2.41  
2
Allen Electronegativity
0.90  
99+
1.85  
11
Electropositivity
  
  
Pauling Electropositivity
2.20  
39
1.67  
99+
Ionization Energies
  
  
1st Energy Level
579.90 kJ/mol  
99+
715.60 kJ/mol  
31
2nd Energy Level
1,389.40 kJ/mol  
99+
1,450.50 kJ/mol  
99+
3rd Energy Level
2,296.40 kJ/mol  
99+
3,081.50 kJ/mol  
23
4th Energy Level
3,077.90 kJ/mol  
99+
4,083.00 kJ/mol  
99+
5th Energy Level
5,790.00 kJ/mol  
99+
6,640.00 kJ/mol  
32
6th Energy Level
11,600.00 kJ/mol  
7
7,150.00 kJ/mol  
99+
7th Energy level
5,800.00 kJ/mol  
99+
7,156.00 kJ/mol  
36
8th Energy Level
5,800.00 kJ/mol  
99+
7,150.00 kJ/mol  
32
9th Energy Level
5,800.00 kJ/mol  
99+
7,156.00 kJ/mol  
30
10th Energy Level
5,800.00 kJ/mol  
99+
7,156.00 kJ/mol  
34
11th Energy Level
5,800.00 kJ/mol  
99+
7,156.00 kJ/mol  
33
12th Energy Level
5,800.00 kJ/mol  
99+
7,150.00 kJ/mol  
99+
13th Energy Level
5,800.00 kJ/mol  
99+
7,150.00 kJ/mol  
28
14th Energy Level
5,800.00 kJ/mol  
99+
715.60 kJ/mol  
99+
15th Energy Level
58,000.00 kJ/mol  
99+
71,500.00 kJ/mol  
24
16th Energy Level
58,000.00 kJ/mol  
99+
71,500.00 kJ/mol  
19
17th Energy Level
579.90 kJ/mol  
99+
715.60 kJ/mol  
40
18th Energy Level
3,300.00 kJ/mol  
99+
7,150.00 kJ/mol  
30
19th Energy Level
579.90 kJ/mol  
99+
715.60 kJ/mol  
37
20th Energy Level
580.00 kJ/mol  
99+
715.00 kJ/mol  
31
21st Energy Level
5,800.00 kJ/mol  
21
715.60 kJ/mol  
99+
22nd Energy Level
579.00 kJ/mol  
99+
715.00 kJ/mol  
25
23rd Energy Level
5,800.00 kJ/mol  
21
715.60 kJ/mol  
99+
24th Energy Level
579.10 kJ/mol  
99+
715.60 kJ/mol  
24
25th Energy Level
0.00 kJ/mol  
99+
715.00 kJ/mol  
25
26th Energy Level
580.00 kJ/mol  
99+
715.60 kJ/mol  
24
27th Energy Level
580.00 kJ/mol  
99+
715.60 kJ/mol  
23
28th Energy Level
840.00 kJ/mol  
14
715.60 kJ/mol  
29
29th Energy Level
580.60 kJ/mol  
99+
715.60 kJ/mol  
30
30th Energy Level
0.00 kJ/mol  
99+
715.00 kJ/mol  
24
Electrochemical Equivalent
3.00 g/amp-hr  
21
3.87 g/amp-hr  
9
Electron Work Function
6.00 eV  
1
4.25 eV  
28
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity  
Anti Corrosion, Ionization, Radioactive Isotopes  
Atomic
Atomic Number
104  
14
82  
34
Electron Configuration
[Rn] 5f14 6d2 7s2  
[Xe] 4f14 5d10 6s2 6p2  
Crystal Structure
Hexagonal Close Packed (HCP)  
Face Centered Cubic (FCC)  
Crystal Lattice
BCC-Crystal-Structure-.jpg#100  
FCC-Crystal-Structure-of-Lead.jpg#100  
Atom
  
  
Number of Protons
104  
14
82  
34
Number of Neutrons
157  
8
125  
20
Number of Electrons
104  
14
82  
34
Radius of an Atom
  
  
Atomic Radius
150.00 pm  
35
175.00 pm  
21
Covalent Radius
157.00 pm  
33
146.00 pm  
40
Van der Waals Radius
250.00 pm  
10
202.00 pm  
34
Atomic Weight
267.00 amu  
11
207.20 amu  
30
Atomic Volume
23.20 cm3/mol  
15
18.17 cm3/mol  
39
Adjacent Atomic Numbers
  
  
Previous Element
Lawrencium
  
Thallium
  
Next Element
Dubnium
  
Bismuth
  
Valence Electron Potential
6.00 (-eV)  
99+
24.20 (-eV)  
99+
Lattice Constant
-  
495.08 pm  
18
Lattice Angles
-  
π/2, π/2, π/2  
Lattice C/A Ratio
1.60  
22
1.51  
99+
Mechanical
Density
  
  
Density At Room Temperature
23.20 g/cm3  
8
11.34 g/cm3  
35
Density When Liquid (at m.p.)
23.20 g/cm3  
9
10.66 g/cm3  
36
Tensile Strength
23.00 MPa  
99+
12.00 MPa  
99+
Viscosity
0.00  
25
0.00  
29
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
37
1.64 (Pa)  
7
Vapor Pressure at 2000 K
0.00 (Pa)  
99+
0.00 (Pa)  
30
Elasticity properties
  
  
Shear Modulus
23.00 GPa  
99+
5.60 GPa  
99+
Bulk Modulus
0.00 GPa  
99+
46.00 GPa  
28
Young's Modulus
12.80 GPa  
99+
16.00 GPa  
99+
Poisson Ratio
0.30  
14
0.44  
3
Other Mechanical Properties
-  
Ductile, Malleable  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
23.00  
10
11.35  
38
Magnetic Ordering
-  
Diamagnetic  
Permeability
0.00 H/m  
10
0.00 H/m  
12
Susceptibility
0.00  
24
0.00  
30
Electrical Properties
  
  
Electrical Property
-  
Poor Conductor  
Resistivity
0.29 nΩ·m  
99+
208.00 nΩ·m  
16
Electrical Conductivity
0.00 106/cm Ω  
99+
0.05 106/cm Ω  
99+
Electron Affinity
50.00 kJ/mol  
26
35.10 kJ/mol  
33
Thermal
Specific Heat
0.27 J/(kg K)  
19
0.13 J/(kg K)  
40
Molar Heat Capacity
23.20 J/mol·K  
99+
26.65 J/mol·K  
34
Thermal Conductivity
0.23 W/m·K  
99+
35.30 W/m·K  
39
Critical Temperature
2,400.00 K  
12
600.61 K  
99+
Thermal Expansion
23.20 µm/(m·K)  
17
28.90 µm/(m·K)  
13
Enthalpy
  
  
Enthalpy of Vaporization
580.00 kJ/mol  
12
179.40 kJ/mol  
99+
Enthalpy of Fusion
-  
4.77 kJ/mol  
99+
Enthalpy of Atomization
580.00 kJ/mol  
14
194.60 kJ/mol  
99+
Standard Molar Entropy
57.60 J/mol.K  
28
64.80 J/mol.K  
18
Periodic Table >>
<< All

Compare Transition Metals

Transition Metals

Transition Metals

» More Transition Metals

Compare Transition Metals

» More Compare Transition Metals
Home | About | Contact | Disclaimer | Terms of use
© A softusvista inc. venture!