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Californium vs Gold


Gold vs Californium


Periodic Table

Symbol
Cf  
Au  

Group Number
3  
15
11  
7

Period Number
7  
6  

Block
f block  
d block  

Element Family
Actinide  
Transition Metal  

CAS Number
7440713  
20
7440575  
31

Space Group Name
P63/mmc  
Fm_ 3m  

Space Group Number
194.00  
7
225.00  
3

Facts

Interesting Facts
  • Californium metal is very harmful and highly radioactive.
  • Californium metal is the heaviest metal.
  
  • 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
Made by Bombarding Curium with Helium Ions  
Earth's crust, Mining, Ores of metals  

History
  
  

Who Discovered
Lawrence Berkeley National Laboratory  
-  

Discovery
In 1950  
Before 6000 BCE  

Abundance
  
  

Abundance In Universe
0.00 %  
38
0.00 %  
27

Abundance In Sun
0.00 %  
30
0.00 %  
26

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 %  
21

Abundance In Humans
0.00 %  
24
0.00 %  
21

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.
  
  • 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
Chemical Industry  
Chemical Industry, Clothing Industry, Electrical Industry, Electronic Industry  

Medical Uses
-  
Dentistry, Pharmaceutical Industry  

Other Uses
Alloys, Nuclear Research  
Alloys, Bullion, Coinage, Jewellery, Sculptures, Statues  

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  
38

In Bone
0.00 p.p.m.  
99+
0.02 p.p.m.  
35

Physical

Melting Point
900.00 °C  
99+
1,064.43 °C  
99+

Boiling Point
1,470.00 °C  
99+
2,807.00 °C  
37

Appearance
  
  

Physical State
Solid  
Solid  

Color
Silver  
Gold  

Luster
-  
Metallic  

Hardness
  
  

Mohs Hardness
3.00  
13
2.50  
15

Brinell Hardness
170.00 MPa  
99+
194.00 MPa  
99+

Vickers Hardness
1,800.00 MPa  
7
216.00 MPa  
99+

Speed of Sound
2,260.00 m/s  
99+
2,030.00 m/s  
99+

Optical Properties
  
  

Refractive Index
1.30  
99+
0.47  
99+

Reflectivity
63.00 %  
20
95.00 %  
2

Allotropes
No  
No  

α Allotropes
-  
-  

β Allotropes
-  
-  

γ Allotropes
-  
-  

Chemical

Chemical Formula
Cf  
Au  

Isotopes
  
  

Known Isotopes
20  
19
36  
3

Electronegativity
  
  

Pauling Electronegativity
1.30  
33
2.54  
2

Sanderson Electronegativity
1.30  
25
1.50  
18

Allred Rochow Electronegativity
1.20  
28
1.42  
19

Mulliken-Jaffe Electronegativity
1.30  
33
1.87  
15

Allen Electronegativity
1.30  
40
1.92  
7

Electropositivity
  
  

Pauling Electropositivity
2.70  
22
1.46  
99+

Ionization Energies
  
  

1st Energy Level
608.00 kJ/mol  
99+
890.10 kJ/mol  
8

2nd Energy Level
1,206.00 kJ/mol  
99+
1,980.00 kJ/mol  
12

3rd Energy Level
2,267.00 kJ/mol  
99+
2,856.00 kJ/mol  
33

4th Energy Level
3,599.00 kJ/mol  
99+
890.10 kJ/mol  
99+

5th Energy Level
6,080.00 kJ/mol  
99+
8,901.00 kJ/mol  
6

6th Energy Level
6,080.00 kJ/mol  
99+
8,901.00 kJ/mol  
24

7th Energy level
6,080.00 kJ/mol  
99+
8,901.00 kJ/mol  
21

8th Energy Level
6,080.00 kJ/mol  
99+
8,900.00 kJ/mol  
20

9th Energy Level
6,080.00 kJ/mol  
99+
8,901.00 kJ/mol  
20

10th Energy Level
6,080.00 kJ/mol  
99+
8,901.00 kJ/mol  
21

11th Energy Level
6,080.00 kJ/mol  
99+
8,901.00 kJ/mol  
19

12th Energy Level
60,800.00 kJ/mol  
14
8,900.00 kJ/mol  
39

13th Energy Level
6,080.00 kJ/mol  
99+
8,900.00 kJ/mol  
14

14th Energy Level
6,080.00 kJ/mol  
30
890.10 kJ/mol  
99+

15th Energy Level
62,400.00 kJ/mol  
39
89,000.00 kJ/mol  
7

16th Energy Level
62,400.00 kJ/mol  
29
890.10 kJ/mol  
99+

17th Energy Level
608.00 kJ/mol  
99+
890.10 kJ/mol  
25

18th Energy Level
6,085.00 kJ/mol  
99+
8,901.00 kJ/mol  
14

19th Energy Level
608.00 kJ/mol  
99+
890.10 kJ/mol  
23

20th Energy Level
578.00 kJ/mol  
99+
890.00 kJ/mol  
13

21st Energy Level
6,080.00 kJ/mol  
16
890.10 kJ/mol  
35

22nd Energy Level
608.00 kJ/mol  
39
890.00 kJ/mol  
11

23rd Energy Level
6,080.00 kJ/mol  
17
890.10 kJ/mol  
38

24th Energy Level
608.00 kJ/mol  
99+
890.10 kJ/mol  
6

25th Energy Level
608.00 kJ/mol  
99+
890.00 kJ/mol  
5

26th Energy Level
608.00 kJ/mol  
99+
890.10 kJ/mol  
5

27th Energy Level
608.00 kJ/mol  
99+
890.10 kJ/mol  
4

28th Energy Level
608.00 kJ/mol  
99+
890.10 kJ/mol  
7

29th Energy Level
608.00 kJ/mol  
99+
890.10 kJ/mol  
8

30th Energy Level
608.00 kJ/mol  
99+
890.10 kJ/mol  
5

Electrochemical Equivalent
3.12 g/amp-hr  
17
2.45 g/amp-hr  
25

Electron Work Function
4.70 eV  
15
5.10 eV  
8

Other Chemical Properties
Corrosion, Ionization, Radioactive Isotopes, Radioactivity, Solubility  
Chemical Stability, Ionization, Solubility  

Atomic

Atomic Number
98  
20
79  
37

Electron Configuration
[Rn] 5f10 7s2  
[Xe] 4f14 5d10 6s1  

Crystal Structure
Double Hexagonal Close Packed (DHCP)  
Face Centered Cubic (FCC)  

Crystal Lattice
DHCP-Crystal-Structure-of-Californium.jpg#100  
FCC-Crystal-Structure-of-Gold.jpg#100  

Atom
  
  

Number of Protons
98  
20
79  
37

Number of Neutrons
153  
10
118  
24

Number of Electrons
98  
20
79  
37

Radius of an Atom
  
  

Atomic Radius
186.00 pm  
11
151.00 pm  
34

Covalent Radius
186.00 pm  
21
144.00 pm  
99+

Van der Waals Radius
244.00 pm  
14
166.00 pm  
99+

Atomic Weight
251.00 amu  
17
196.97 amu  
33

Atomic Volume
15.10 cm3/mol  
99+
10.20 cm3/mol  
99+

Adjacent Atomic Numbers
  
  

Previous Element
Berkelium
  
Platinum
  

Next Element
Mercury
  

Valence Electron Potential
44.50 (-eV)  
39
43.40 (-eV)  
99+

Lattice Constant
338.00 pm  
99+
407.82 pm  
24

Lattice Angles
π/2, π/2, 2 π/3  
π/2, π/2, π/2  

Lattice C/A Ratio
1.58  
34
1.61  
18

Mechanical

Density
  
  

Density At Room Temperature
15.10 g/cm3  
21
19.30 g/cm3  
15

Density When Liquid (at m.p.)
15.10 g/cm3  
22
17.31 g/cm3  
16

Tensile Strength
50.00 MPa  
38
120.00 MPa  
27

Viscosity
0.00  
25
0.00  
23

Vapor Pressure
  
  

Vapor Pressure at 1000 K
0.00 (Pa)  
22
0.00 (Pa)  
25

Vapor Pressure at 2000 K
0.00 (Pa)  
24
67.00 (Pa)  
4

Elasticity properties
  
  

Shear Modulus
29.00 GPa  
29
27.00 GPa  
34

Bulk Modulus
40.00 GPa  
38
180.00 GPa  
9

Young's Modulus
0.00 GPa  
99+
79.00 GPa  
26

Poisson Ratio
0.30  
14
0.40  
4

Other Mechanical Properties
Malleable, Sectile  
Ductile, Malleable  

Magnetic

Magnetic Characteristics
  
  

Specific Gravity
15.10  
24
19.32  
17

Magnetic Ordering
Paramagnetic  
Diamagnetic  

Permeability
0.00 H/m  
8
0.00 H/m  
10

Susceptibility
0.00  
24
0.00  
22

Electrical Properties
  
  

Electrical Property
-  
Conductor  

Resistivity
6.20 nΩ·m  
99+
2.20 nΩ·m  
99+

Electrical Conductivity
0.11 106/cm Ω  
23
0.45 106/cm Ω  
3

Electron Affinity
97.00 kJ/mol  
12
222.80 kJ/mol  
1

Thermal

Specific Heat
0.10 J/(kg K)  
99+
0.13 J/(kg K)  
40

Molar Heat Capacity
26.70 J/mol·K  
33
25.42 J/mol·K  
99+

Thermal Conductivity
10.00 W/m·K  
99+
318.00 W/m·K  
3

Critical Temperature
900.00 K  
99+
1,337.00 K  
99+

Thermal Expansion
11.70 µm/(m·K)  
99+
14.20 µm/(m·K)  
29

Enthalpy
  
  

Enthalpy of Vaporization
311.40 kJ/mol  
99+
324.40 kJ/mol  
99+

Enthalpy of Fusion
15.10 kJ/mol  
21
12.55 kJ/mol  
33

Enthalpy of Atomization
-  
364.00 kJ/mol  
34

Standard Molar Entropy
50.00 J/mol.K  
99+
47.40 J/mol.K  
99+

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