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Californium vs Indium

Californium
Indium
Indium vs Californium


Periodic Table
Symbol
Cf  
In  
Group Number
3  
15
13  
5
Period Number
7  
5  
Block
f block  
p block  
Element Family
Actinide  
Post-​Transition  
CAS Number
7440713  
20
7440746  
17
Space Group Name
P63/mmc  
I4/mmm  
Space Group Number
194.00  
7
139.00  
11
Facts
Interesting Facts
  • Californium metal is very harmful and highly radioactive.
  • Californium metal is the heaviest metal.
  
  • Luster of Indium is bright in nature.
  • Reich and richer were looking for thallium in zinc metal and they discovered Indium metal.
  
Sources
Made by Bombarding Curium with Helium Ions  
Mining, Ores of metals  
History
  
  
Who Discovered
Lawrence Berkeley National Laboratory  
Ferdinand Reich and Hieronymous Theodor Richter  
Discovery
In 1950  
In 1863  
Abundance
  
  
Abundance In Universe
0.00 %  
38
0.00 %  
29
Abundance In Sun
0.00 %  
30
0.00 %  
23
Abundance In Meteorites
0.00 %  
99+
0.00 %  
99+
Abundance In Earth's Crust
0.00 %  
99+
0.00 %  
99+
Abundance In Oceans
-  
0.00 %  
99+
Abundance In Humans
0.00 %  
24
0.00 %  
16
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.
  
  • It is used to produce indium tin oxide (ITO), it is used in manufacturing touch screens, flat screen TVs and solar panels.
  • Its nitride, phosphide and antimonide are used in transistors and microchips.
  
Industrial Uses
Chemical Industry  
Aerospace Industry, Automobile Industry  
Medical Uses
-  
Medical Research  
Other Uses
Alloys, Nuclear Research  
Alloys, In Nuclear Reactors  
Biological Properties
  
  
Toxicity
Toxic  
Non Toxic  
Present in Human Body
No  
Yes  
In Blood
0.00 Blood/mg dm-3  
40
0.00 Blood/mg dm-3  
40
In Bone
0.00 p.p.m.  
99+
0.00 p.p.m.  
99+
Physical
Melting Point
900.00 °C  
99+
156.61 °C  
99+
Boiling Point
1,470.00 °C  
99+
2,000.00 °C  
99+
Appearance
  
  
Physical State
Solid  
Solid  
Color
Silver  
Silvery Gray  
Luster
-  
Lustrous  
Hardness
  
  
Mohs Hardness
3.00  
13
1.20  
21
Brinell Hardness
170.00 MPa  
99+
8.80 MPa  
99+
Vickers Hardness
1,800.00 MPa  
7
0.01 MPa  
99+
Speed of Sound
2,260.00 m/s  
99+
1,215.00 m/s  
99+
Optical Properties
  
  
Refractive Index
1.30  
99+
3.41  
1
Reflectivity
63.00 %  
20
83.00 %  
6
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Cf  
In  
Isotopes
  
  
Known Isotopes
20  
19
35  
4
Electronegativity
  
  
Pauling Electronegativity
1.30  
33
1.78  
17
Sanderson Electronegativity
1.30  
25
2.14  
9
Allred Rochow Electronegativity
1.20  
28
1.49  
14
Mulliken-Jaffe Electronegativity
1.30  
33
1.76  
18
Allen Electronegativity
1.30  
40
1.66  
21
Electropositivity
  
  
Pauling Electropositivity
2.70  
22
2.22  
38
Ionization Energies
  
  
1st Energy Level
608.00 kJ/mol  
99+
558.30 kJ/mol  
99+
2nd Energy Level
1,206.00 kJ/mol  
99+
1,820.70 kJ/mol  
19
3rd Energy Level
2,267.00 kJ/mol  
99+
2,704.00 kJ/mol  
40
4th Energy Level
3,599.00 kJ/mol  
99+
5,210.00 kJ/mol  
26
5th Energy Level
6,080.00 kJ/mol  
99+
5,580.00 kJ/mol  
99+
6th Energy Level
6,080.00 kJ/mol  
99+
5,580.00 kJ/mol  
99+
7th Energy level
6,080.00 kJ/mol  
99+
5,580.00 kJ/mol  
99+
8th Energy Level
6,080.00 kJ/mol  
99+
5,580.00 kJ/mol  
99+
9th Energy Level
6,080.00 kJ/mol  
99+
5,580.00 kJ/mol  
99+
10th Energy Level
6,080.00 kJ/mol  
99+
5,580.00 kJ/mol  
99+
11th Energy Level
6,080.00 kJ/mol  
99+
5,580.00 kJ/mol  
99+
12th Energy Level
60,800.00 kJ/mol  
14
5,580.00 kJ/mol  
99+
13th Energy Level
6,080.00 kJ/mol  
99+
5,580.00 kJ/mol  
99+
14th Energy Level
6,080.00 kJ/mol  
30
558.30 kJ/mol  
99+
15th Energy Level
62,400.00 kJ/mol  
39
55,800.00 kJ/mol  
99+
16th Energy Level
62,400.00 kJ/mol  
29
558.30 kJ/mol  
99+
17th Energy Level
608.00 kJ/mol  
99+
558.30 kJ/mol  
99+
18th Energy Level
6,085.00 kJ/mol  
99+
5,580.00 kJ/mol  
99+
19th Energy Level
608.00 kJ/mol  
99+
558.30 kJ/mol  
99+
20th Energy Level
578.00 kJ/mol  
99+
558.00 kJ/mol  
99+
21st Energy Level
6,080.00 kJ/mol  
16
558.30 kJ/mol  
99+
22nd Energy Level
608.00 kJ/mol  
39
558.00 kJ/mol  
99+
23rd Energy Level
6,080.00 kJ/mol  
17
5,581.00 kJ/mol  
24
24th Energy Level
608.00 kJ/mol  
99+
558.30 kJ/mol  
99+
25th Energy Level
608.00 kJ/mol  
99+
558.00 kJ/mol  
99+
26th Energy Level
608.00 kJ/mol  
99+
558.30 kJ/mol  
99+
27th Energy Level
608.00 kJ/mol  
99+
558.30 kJ/mol  
99+
28th Energy Level
608.00 kJ/mol  
99+
558.30 kJ/mol  
99+
29th Energy Level
608.00 kJ/mol  
99+
558.30 kJ/mol  
99+
30th Energy Level
608.00 kJ/mol  
99+
558.00 kJ/mol  
99+
Electrochemical Equivalent
3.12 g/amp-hr  
17
1.43 g/amp-hr  
99+
Electron Work Function
4.70 eV  
15
4.12 eV  
31
Other Chemical Properties
Corrosion, Ionization, Radioactive Isotopes, Radioactivity, Solubility  
Ionization, Radioactive Isotopes, Radioactivity, Solubility  
Atomic
Atomic Number
98  
20
49  
99+
Electron Configuration
[Rn] 5f10 7s2  
[Kr] 4d10 5s2 5p1  
Crystal Structure
Double Hexagonal Close Packed (DHCP)  
Tetragonal (TETR)  
Crystal Lattice
DHCP-Crystal-Structure-of-Californium.jpg#100  
TETR-Crystal-Structure-of-Indium.jpg#100  
Atom
  
  
Number of Protons
98  
20
49  
99+
Number of Neutrons
153  
10
66  
99+
Number of Electrons
98  
20
49  
99+
Radius of an Atom
  
  
Atomic Radius
186.00 pm  
11
167.00 pm  
26
Covalent Radius
186.00 pm  
21
142.00 pm  
99+
Van der Waals Radius
244.00 pm  
14
193.00 pm  
38
Atomic Weight
251.00 amu  
17
114.82 amu  
99+
Atomic Volume
15.10 cm3/mol  
99+
15.70 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Berkelium
  
Cadmium
  
Next Element
Einsteinium
  
Tin
  
Valence Electron Potential
44.50 (-eV)  
39
54.00 (-eV)  
26
Lattice Constant
338.00 pm  
99+
325.23 pm  
99+
Lattice Angles
π/2, π/2, 2 π/3  
π/2, π/2, π/2  
Lattice C/A Ratio
1.58  
34
1.56  
99+
Mechanical
Density
  
  
Density At Room Temperature
15.10 g/cm3  
21
7.31 g/cm3  
99+
Density When Liquid (at m.p.)
15.10 g/cm3  
22
7.02 g/cm3  
99+
Tensile Strength
50.00 MPa  
38
2.50 MPa  
99+
Viscosity
0.00  
25
0.00  
25
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
22
0.01 (Pa)  
11
Vapor Pressure at 2000 K
0.00 (Pa)  
24
0.00 (Pa)  
24
Elasticity properties
  
  
Shear Modulus
29.00 GPa  
29
18.00 GPa  
99+
Bulk Modulus
40.00 GPa  
38
46.90 GPa  
27
Young's Modulus
0.00 GPa  
99+
11.00 GPa  
99+
Poisson Ratio
0.30  
14
0.44  
3
Other Mechanical Properties
Malleable, Sectile  
Ductile, Malleable  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
15.10  
24
7.31  
99+
Magnetic Ordering
Paramagnetic  
Diamagnetic  
Permeability
0.00 H/m  
8
0.00 H/m  
17
Susceptibility
0.00  
24
0.00  
34
Electrical Properties
  
  
Electrical Property
-  
Conductor  
Resistivity
6.20 nΩ·m  
99+
83.70 nΩ·m  
34
Electrical Conductivity
0.11 106/cm Ω  
23
0.12 106/cm Ω  
20
Electron Affinity
97.00 kJ/mol  
12
28.90 kJ/mol  
37
Thermal
Specific Heat
0.10 J/(kg K)  
99+
0.23 J/(kg K)  
27
Molar Heat Capacity
26.70 J/mol·K  
33
26.74 J/mol·K  
32
Thermal Conductivity
10.00 W/m·K  
99+
81.80 W/m·K  
21
Critical Temperature
900.00 K  
99+
429.75 K  
99+
Thermal Expansion
11.70 µm/(m·K)  
99+
32.10 µm/(m·K)  
9
Enthalpy
  
  
Enthalpy of Vaporization
311.40 kJ/mol  
99+
226.40 kJ/mol  
99+
Enthalpy of Fusion
15.10 kJ/mol  
21
3.28 kJ/mol  
99+
Enthalpy of Atomization
-  
242.70 kJ/mol  
99+
Standard Molar Entropy
50.00 J/mol.K  
99+
57.80 J/mol.K  
27
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