Home
Compare Metals


Silver Bohrium Comparison


Bohrium Silver comparison


Periodic Table

Symbol
Ag  
Bh  

Group Number
11  
7
7  
11

Period Number
5  
7  

Block
d block  
d block  

Element Family
Transition Metal  
Transition Metal  

CAS Number
7440224  
99+
54037148  
12

Space Group Name
Fm_ 3m  
-  

Space Group Number
225.00  
3
276.00  
1

Facts

Interesting Facts
  • It is the most reflective element.
  • Silver is the second most ductile metal after Gold.
  • It is also used in Dentistry as a dental alloys for clips and crowning.
  
  • Bohrium metal is also known as Unnilseptium (Uns) and Nielsbohrium (Ns).
  

Sources
Earth's crust, Found in Minerals, Ores of metals  
Found in Minerals, Mining, Synthetically Produced  

History
  
  

Who Discovered
-  
Gesellschaft für Schwerionenforschung  

Discovery
Before 5000 BC  
In 1981  

Abundance
  
  

Abundance In Universe
0.00 %  
27
0.00 %  
37

Abundance In Sun
0.00 %  
26
-  

Abundance In Meteorites
0.00 %  
38
0.00 %  
99+

Abundance In Earth's Crust
0.00 %  
99+
0.00 %  
99+

Abundance In Oceans
0.00 %  
19
-  

Abundance In Humans
0.00 %  
24
-  

Uses

Uses & Benefits
  • Silver is mainly used for Jewelry and show piece.
  • It is used for manufacturing high quality mirrors due to its reflectivity property.
  
  • Currently known uses of Bohrium metal are limited to research purpose only.
  

Industrial Uses
Chemical Industry, Clothing Industry, Electrical Industry  
-  

Medical Uses
Dentistry, Pharmaceutical Industry  
-  

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

Biological Properties
  
  

Toxicity
Non Toxic  
-  

Present in Human Body
Yes  
No  

In Blood
0.00 Blood/mg dm-3  
29
0.00 Blood/mg dm-3  
40

In Bone
0.44 p.p.m.  
24
0.00 p.p.m.  
99+

Physical

Melting Point
961.93 °C  
99+
-  

Boiling Point
2,212.00 °C  
99+
0.00 °C  
99+

Appearance
  
  

Physical State
Solid  
Solid  

Color
Silvery White  
-  

Luster
Metallic  
Unknown Luster  

Hardness
  
  

Mohs Hardness
2.50  
15
7.00  
3

Brinell Hardness
251.00 MPa  
99+
270.00 MPa  
99+

Vickers Hardness
229.00 MPa  
99+
2,700.00 MPa  
4

Speed of Sound
2,680.00 m/s  
99+
2,680.00 m/s  
99+

Optical Properties
  
  

Refractive Index
0.16  
99+
1.50  
36

Reflectivity
97.00 %  
1
59.00 %  
24

Allotropes
No  
No  

α Allotropes
-  
-  

β Allotropes
-  
-  

γ Allotropes
-  
-  

Chemical

Chemical Formula
Ag  
Bh  

Isotopes
  
  

Known Isotopes
36  
3
5  
32

Electronegativity
  
  

Pauling Electronegativity
1.93  
10
2.00  
8

Sanderson Electronegativity
1.83  
14
1.30  
25

Allred Rochow Electronegativity
1.42  
19
1.30  
25

Mulliken-Jaffe Electronegativity
1.47  
28
1.30  
33

Allen Electronegativity
1.87  
10
2.00  
6

Electropositivity
  
  

Pauling Electropositivity
2.07  
99+
2.00  
99+

Ionization Energies
  
  

1st Energy Level
731.00 kJ/mol  
27
742.90 kJ/mol  
23

2nd Energy Level
2,070.00 kJ/mol  
11
1,688.50 kJ/mol  
31

3rd Energy Level
3,361.00 kJ/mol  
19
2,566.50 kJ/mol  
99+

4th Energy Level
7,310.00 kJ/mol  
10
3,598.90 kJ/mol  
99+

5th Energy Level
7,310.00 kJ/mol  
24
4,727.80 kJ/mol  
99+

6th Energy Level
7,310.00 kJ/mol  
39
5,991.70 kJ/mol  
99+

7th Energy level
7,310.00 kJ/mol  
33
7,226.80 kJ/mol  
34

8th Energy Level
7,310.00 kJ/mol  
31
7,100.00 kJ/mol  
33

9th Energy Level
7,310.00 kJ/mol  
27
5,800.00 kJ/mol  
99+

10th Energy Level
7,310.00 kJ/mol  
32
7,100.00 kJ/mol  
35

11th Energy Level
7,310.00 kJ/mol  
31
8,200.00 kJ/mol  
25

12th Energy Level
7,310.00 kJ/mol  
99+
82,700.00 kJ/mol  
4

13th Energy Level
7,310.00 kJ/mol  
25
7,100.00 kJ/mol  
29

14th Energy Level
731.00 kJ/mol  
99+
8,200.00 kJ/mol  
17

15th Energy Level
73,100.00 kJ/mol  
22
82,000.00 kJ/mol  
14

16th Energy Level
73,100.00 kJ/mol  
17
71,100.00 kJ/mol  
20

17th Energy Level
731.00 kJ/mol  
38
820.00 kJ/mol  
31

18th Energy Level
7,310.00 kJ/mol  
28
8,200.00 kJ/mol  
20

19th Energy Level
731.00 kJ/mol  
35
820.80 kJ/mol  
28

20th Energy Level
731.00 kJ/mol  
29
820.00 kJ/mol  
21

21st Energy Level
731.00 kJ/mol  
99+
8,200.00 kJ/mol  
11

22nd Energy Level
731.00 kJ/mol  
23
820.00 kJ/mol  
16

23rd Energy Level
731.00 kJ/mol  
99+
8,200.00 kJ/mol  
8

24th Energy Level
731.00 kJ/mol  
22
820.00 kJ/mol  
12

25th Energy Level
731.00 kJ/mol  
22
820.00 kJ/mol  
10

26th Energy Level
731.00 kJ/mol  
22
820.00 kJ/mol  
10

27th Energy Level
731.00 kJ/mol  
21
820.00 kJ/mol  
9

28th Energy Level
731.00 kJ/mol  
27
820.00 kJ/mol  
15

29th Energy Level
731.00 kJ/mol  
28
820.00 kJ/mol  
14

30th Energy Level
731.00 kJ/mol  
22
820.00 kJ/mol  
10

Electrochemical Equivalent
4.02 g/amp-hr  
7
3.00 g/amp-hr  
21

Electron Work Function
4.26 eV  
27
4.90 eV  
12

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

Atomic

Atomic Number
47  
99+
107  
11

Electron Configuration
[Kr] 4d10 5s1  
[Rn] 5f14 6d5 7s2  

Crystal Structure
Face Centered Cubic (FCC)  
Hexagonal Close Packed (HCP)  

Crystal Lattice
FCC-Crystal-Structure-of-Silver.jpg#100  
BCC-Crystal-Structure-.jpg#100  

Atom
  
  

Number of Protons
47  
99+
107  
11

Number of Neutrons
61  
99+
155  
9

Number of Electrons
47  
99+
107  
11

Radius of an Atom
  
  

Atomic Radius
144.00 pm  
38
128.00 pm  
99+

Covalent Radius
145.00 pm  
99+
141.00 pm  
99+

Van der Waals Radius
172.00 pm  
99+
0.00 pm  
99+

Atomic Weight
107.87 amu  
99+
270.00 amu  
8

Atomic Volume
10.30 cm3/mol  
99+
23.70 cm3/mol  
14

Adjacent Atomic Numbers
  
  

Previous Element
Palladium
  

Next Element
Cadmium
  
Hassium
  

Valence Electron Potential
11.40 (-eV)  
99+
27.20 (-eV)  
99+

Lattice Constant
408.53 pm  
23
-  

Lattice Angles
π/2, π/2, π/2  
-  

Lattice C/A Ratio
1.59  
26
1.57  
99+

Mechanical

Density
  
  

Density At Room Temperature
10.49 g/cm3  
37
37.10 g/cm3  
3

Density When Liquid (at m.p.)
9.32 g/cm3  
99+
37.10 g/cm3  
3

Tensile Strength
170.00 MPa  
21
152.00 MPa  
24

Viscosity
0.00  
23
0.00  
25

Vapor Pressure
  
  

Vapor Pressure at 1000 K
0.00 (Pa)  
14
0.00 (Pa)  
37

Vapor Pressure at 2000 K
0.00 (Pa)  
38
0.00 (Pa)  
37

Elasticity properties
  
  

Shear Modulus
30.00 GPa  
27
28.00 GPa  
32

Bulk Modulus
100.00 GPa  
16
37.00 GPa  
99+

Young's Modulus
83.00 GPa  
25
0.00 GPa  
99+

Poisson Ratio
0.37  
7
0.35  
9

Other Mechanical Properties
Ductile, Malleable  
-  

Magnetic

Magnetic Characteristics
  
  

Specific Gravity
10.50  
39
37.00  
5

Magnetic Ordering
Diamagnetic  
-  

Permeability
0.00 H/m  
17
0.00 H/m  
11

Susceptibility
0.00  
32
0.00  
24

Electrical Properties
  
  

Electrical Property
Conductor  
-  

Resistivity
15.87 nΩ·m  
99+
6.50 nΩ·m  
99+

Electrical Conductivity
0.63 106/cm Ω  
1
0.00 106/cm Ω  
99+

Electron Affinity
125.60 kJ/mol  
5
-  

Thermal

Specific Heat
0.24 J/(kg K)  
25
0.10 J/(kg K)  
99+

Molar Heat Capacity
25.35 J/mol·K  
99+
37.10 J/mol·K  
2

Thermal Conductivity
429.00 W/m·K  
1
37.00 W/m·K  
36

Critical Temperature
1,235.00 K  
99+
1,323.00 K  
99+

Thermal Expansion
18.90 µm/(m·K)  
25
14.30 µm/(m·K)  
28

Enthalpy
  
  

Enthalpy of Vaporization
255.10 kJ/mol  
99+
270.50 kJ/mol  
99+

Enthalpy of Fusion
11.30 kJ/mol  
37
-  

Enthalpy of Atomization
284.50 kJ/mol  
99+
-  

Standard Molar Entropy
42.60 J/mol.K  
99+
57.00 J/mol.K  
30

Summary >>
<< Thermal

Compare Transition Metals

Transition Metals

Transition Metals

» More Transition Metals

Compare Transition Metals

» More Compare Transition Metals