Symbol
Rf
  
Au
  
Period Number
7
  
6
  
Block
d block
  
d block
  
Element Family
Transition Metal
  
Transition Metal
  
Space Group Name
Not Available
  
Fm_ 3m
  
Space Group Number
Not Available
  
Interesting Facts
- Rutherfordium does not occur in nature as it is a synthetic element.
- Till date Rutherfordium metal has 15 radioisotopes created synthetically.
  
- It is found in copper ores and from the crust of the earth.
- It is the most malleable and ductile metal.
- Gold alloys are used in Dentistry as fillings, crowning, clips, etc. It is also used as an artificial limb joints.
  
Sources
Bombarding Plutonium with Accelerated 113 to 115 MeV Neon Ions, Synthetically Produced
  
Earth's crust, Mining, Ores of metals
  
History
  
  
Who Discovered
Joint Institute for Nuclear Research
  
Unknown
  
Discovery
In 1964
  
Before 6000 BCE
  
Abundance
  
  
Abundance In Universe
Not Available
  
Abundance In Sun
~-9999 %
  
~0.0000001 %
  
26
Abundance In Meteorites
Not Available
  
Abundance In Earth's Crust
Not Available
  
Abundance In Oceans
Not Available
  
Abundance In Humans
Not Available
  
Uses & Benefits
- Currently known uses of Rutherfordium metal are limited to research purpose only.
  
- Gold metal is mainly used for Jewelry, bullion, coinage, etc.
- It is used in the art, decoration, ornaments, etc. It is also used for electroplating process.
  
Industrial Uses
NA
  
Chemical Industry, Clothing Industry, Electrical Industry, Electronic Industry
  
Medical Uses
NA
  
Dentistry, Pharmaceutical Industry
  
Other Uses
Alloys, Research Purposes
  
Alloys, Bullion, Coinage, Jewellery, Sculptures, Statues
  
Biological Properties
  
  
Toxicity
Unknown
  
Non Toxic
  
Present in Human Body
No
  
Yes
  
In Blood
0.00 Blood/mg dm-3
  
37
0.00 Blood/mg dm-3
  
35
In Bone
0.00 p.p.m.
  
36
0.02 p.p.m.
  
30
Melting Point
2,100.00 °C
  
11
1,064.43 °C
  
99+
Boiling Point
2,807.00 °C
  
36
Appearance
  
  
Physical State
Solid
  
Solid
  
Color
Unknown
  
Gold
  
Luster
Unknown Luster
  
Metallic
  
Hardness
  
  
Mohs Hardness
Not Available
  
Brinell Hardness
Not Available
  
194.00 MPa
  
99+
Vickers Hardness
Not Available
  
Speed of Sound
Not Available
  
2,030.00 m/s
  
99+
Optical Properties
  
  
Reflectivity
Not Available
  
Allotropes
No
  
No
  
α Allotropes
Not Available
  
Not Available
  
β Allotropes
Not Available
  
Not Available
  
γ Allotropes
Not Available
  
Not Available
  
Chemical Formula
Rf
  
Au
  
Isotopes
  
  
Electronegativity
  
  
Pauling Electronegativity
Not Available
  
Allred Rochow Electronegativity
Not Available
  
Mulliken-Jaffe Electronegativity
Not Available
  
Allen Electronegativity
Not Available
  
Electropositivity
  
  
Pauling Electropositivity
Not Available
  
Ionization Energies
  
  
1st Energy Level
579.90 kJ/mol
  
99+
890.10 kJ/mol
  
8
2nd Energy Level
1,389.40 kJ/mol
  
99+
1,980.00 kJ/mol
  
12
3rd Energy Level
2,296.40 kJ/mol
  
99+
Not Available
  
4th Energy Level
3,077.90 kJ/mol
  
99+
Not Available
  
Electrochemical Equivalent
Not Available
  
2.45 g/amp-hr
  
21
Electron Work Function
Not Available
  
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity
  
Chemical Stability, Ionization, Solubility
  
Electron Configuration
[Rn] 5f14 6d2 7s2
  
[Xe] 4f14 5d10 6s1
  
Crystal Structure
Hexagonal Close Packed (HCP)
  
Face Centered Cubic (FCC)
  
Crystal Lattice
BCC-Crystal-Structure-.jpg#100
  
FCC-Crystal-Structure-of-Gold.jpg#100
  
Atom
  
  
Radius of an Atom
  
  
Van der Waals Radius
Not Available
  
Atomic Volume
Not Available
  
10.20 cm3/mol
  
99+
Adjacent Atomic Numbers
  
  
Valence Electron Potential
Not Available
  
43.40 (-eV)
  
99+
Lattice Constant
Not Available
  
Lattice Angles
NA
  
π/2, π/2, π/2
  
Lattice C/A Ratio
Not Available
  
Density
  
  
Density At Room Temperature
19.30 g/cm3
  
15
Density When Liquid (at m.p.)
Not Available
  
Tensile Strength
Not Available
  
Viscosity
Not Available
  
Not Available
  
Vapor Pressure
  
  
Vapor Pressure at 1000 K
Not Available
  
Vapor Pressure at 2000 K
Not Available
  
Elasticity properties
  
  
Shear Modulus
Not Available
  
Bulk Modulus
Not Available
  
Young's Modulus
Not Available
  
Poisson Ratio
Not Available
  
Other Mechanical Properties
Unknown
  
Ductile, Malleable
  
Magnetic Characteristics
  
  
Specific Gravity
Not Available
  
Magnetic Ordering
Unknown
  
Diamagnetic
  
Electrical Properties
  
  
Electrical Property
Unknown
  
Conductor
  
Resistivity
Not Available
  
Electrical Conductivity
Not Available
  
0.45 10
6/cm Ω
  
3
Electron Affinity
Not Available
  
222.80 kJ/mol
  
1
Specific Heat
Not Available
  
0.13 J/(kg K)
  
39
Molar Heat Capacity
Not Available
  
25.42 J/mol·K
  
40
Thermal Conductivity
Not Available
  
318.00 W/m·K
  
3
Critical Temperature
Not Available
  
Not Available
  
Thermal Expansion
Not Available
  
14.20 µm/(m·K)
  
26
Enthalpy
  
  
Enthalpy of Vaporization
Not Available
  
324.40 kJ/mol
  
27
Enthalpy of Fusion
Not Available
  
12.55 kJ/mol
  
27
Enthalpy of Atomization
Not Available
  
364.00 kJ/mol
  
25
Standard Molar Entropy
Not Available
  
47.40 J/mol.K
  
32