Californium vs Tennessine
Periodic Table
Symbol
Cf
Ts
Group Number
Not Available
17
1
Period Number
7
7
Block
f block
p block
Element Family
Actinide
Probably Post-Transition
CAS Number
7440713
20
54101143
2
Space Group Name
P63/mmc
Not Available
Space Group Number
194.00
5
Not Available
Facts
Interesting Facts
- Californium metal is very harmful and highly radioactive.
- Californium metal is the heaviest metal.
Not Available
Sources
Made by Bombarding Curium with Helium Ions
Synthetically Produced
History
Who Discovered
Lawrence Berkeley National Laboratory
Joint Institute for Nuclear Research and Lawrence Livermore National Laboratory
Discovery
In 1950
In 2010
Abundance
Uses
Uses & Benefits
- Californium metal has a very strong neutron emitter. It is used as a metal detector.
- It also used as an identifier to check Water and oil layers in oil wells.
- Currently known uses of Ununseptium metal are limited to research purpose only.
Industrial Uses
Chemical Industry
NA
Medical Uses
NA
NA
Other Uses
Alloys, Nuclear Research
Research Purposes
Biological Properties
Toxicity
Toxic
Unknown
Present in Human Body
No
No
In Blood
0.00 Blood/mg dm-3
37
Not Available
In Bone
0.00 p.p.m.
36
Not Available
Physical Properties
Melting Point
900.00 °C
99+
400.00 °C
99+
Boiling Point
1,470.00 °C
99+
610.00 °C
99+
Appearance
Physical State
Solid
Solid
Color
Silver
Unknown
Luster
NA
Unknown Luster
Hardness
Mohs Hardness
3.00
12
Not Available
Speed of Sound
Not Available
Not Available
Optical Properties
Allotropes
No
No
α Allotropes
Not Available
Not Available
β Allotropes
Not Available
Not Available
γ Allotropes
Not Available
Not Available
Chemical Properties
Chemical Formula
Cf
Ts
Isotopes
Known Isotopes
20
19
0
35
Electronegativity
Pauling Electronegativity
1.30
32
Not Available
Allred Rochow Electronegativity
1.20
27
Not Available
Electropositivity
Pauling Electropositivity
2.70
22
Not Available
Ionization Energies
1st Energy Level
608.00 kJ/mol
99+
742.90 kJ/mol
23
2nd Energy Level
1,206.00 kJ/mol
99+
1,785.00 kJ/mol
22
3rd Energy Level
2,267.00 kJ/mol
99+
Not Available
4th Energy Level
3,599.00 kJ/mol
99+
Not Available
Electrochemical Equivalent
3.12 g/amp-hr
15
Not Available
Electron Work Function
Not Available
Not Available
Other Chemical Properties
Corrosion, Ionization, Radioactive Isotopes, Radioactivity, Solubility
Chemical Stability, Ionization
Atomic Properties
Atomic Number
98
20
117
1
Electron Configuration
[Rn] 5f10 7s2
[Rn] 5f14 6d10 7s2 7p5
Crystal Structure
Double Hexagonal Close Packed (DHCP)
Not Known
Crystal Lattice
DHCP-Crystal-Structure-of-Californium.jpg#100
Unknown-Crystal-Structure-of-Ununseptium.jpg#100
Atom
Number of Protons
98
20
117
1
Number of Neutrons
153
9
167
2
Number of Electrons
98
20
117
1
Radius of an Atom
Atomic Radius
186.00 pm
9
Not Available
Atomic Weight
251.00 amu
17
294.00 amu
1
Atomic Volume
Not Available
Not Available
Adjacent Atomic Numbers
Valence Electron Potential
44.50 (-eV)
38
Not Available
Lattice Constant
338.00 pm
99+
Not Available
Lattice Angles
π/2, π/2, 2 π/3
NA
Lattice C/A Ratio
Not Available
Not Available
Mechanical Properties
Density
Density At Room Temperature
15.10 g/cm3
21
7.10 g/cm3
99+
Tensile Strength
Not Available
Not Available
Viscosity
Not Available
Not Available
Vapor Pressure
Elasticity properties
Poisson Ratio
Not Available
Not Available
Other Mechanical Properties
Malleable, Sectile
Unknown
Magnetic Properties
Magnetic Characteristics
Specific Gravity
15.10
13
Not Available
Magnetic Ordering
Paramagnetic
Paramagnetic
Electrical Properties
Thermal Properties
Specific Heat
Not Available
Not Available
Molar Heat Capacity
Not Available
Not Available
Thermal Conductivity
Not Available
Not Available
Critical Temperature
Not Available
Not Available
Thermal Expansion
Not Available
Not Available
Enthalpy
Standard Molar Entropy
Not Available
Not Available
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