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Periodic Table Element Comparison: Compare Elements - Molybdenum vs Osmium

Compare Molybdenum and Osmium

Compare Molybdenum and Osmium on the basis of their properties, attributes and periodic table facts. Compare elements on more than 90 properties. All the elements of similar categories show a lot of similarities and differences in their chemical, atomic, physical properties and uses. These similarities and dissimilarities should be known while we study periodic table elements. You can study the detailed comparison between Molybdenum vs Osmium with most reliable information about their properties, attributes, facts, uses etc. You can compare Mo vs Os on more than 90 properties like electronegativity , oxidation state, atomic shells, orbital structure, Electronaffinity, physical states, electrical conductivity and many more.

Facts

Molybdenum
42
Mo
95.94
Solid
Gray
transition metal
6
chromium family 
5
d
[Kr] 4d5 5s1
2623 °C
4639 °C
2, 8, 18, 13, 1
CAS7439-98-7
Neighborhood Elements of Molybdenum
Osmium
76
Os
190.23
Solid
SlateGray
transition metal
8
iron family 
6
d
[Xe] 4f14 5d6 6s2
3033 °C
5012 °C
2, 8, 18, 32, 14, 2
CAS7440-04-2
Neighborhood Elements of Osmium

History

History
The element Molybdenum was discovered by Carl Wilhelm Scheele in year 1781 in Sweden. Molybdenum derived its name from from the Greek word molybdos meaning 'lead'
The element Osmium was discovered by Smithson Tennant in year 1803 in United Kingdom. Osmium derived its name derived its name from from the Greek osmè, meaning 'smell'

Presence: Abundance in Nature and Around Us

Ppb by weight (1ppb =10^-7 %)
5×10-7%
9×10-7%
1.2e-06
1.1e-06
1×10-6%
1e-07
3×10-7%
2×10-7%
6.6e-07
1.8×10-7%
N/A
N/A

Crystal Structure and Atomic Structure

190 pm
9.3326848249027 cm3
145 pm
N/A
2.6
molybdenum Spectrum
314.7, 314.7, 314.7 pm
π/2, π/2, π/2
Im_ 3m
229

Body Centered Cubic

molybdenum Crystal Structure
185 pm
8.4209827357238 cm3
128 pm
N/A
15
osmium Spectrum
273.44, 273.44, 431.73 pm
π/2, π/2, 2 π/3
P63/mmc
194

Simple Hexagonal

osmium Crystal Structure

Atomic and Orbital Properties

Atomic Number
Number of Electrons (with no charge)
Number of Protons
Mass Number
Number of Neutrons
Shell structure (Electrons per energy level)
Electron Configuration
Valence Electrons
Oxidation State
Atomic Term Symbol (Quantum Numbers)
Shell structure
42
42
42
95.94
53.94
2, 8, 18, 13, 1
[Kr] 4d5 5s1
4d5 5s1
-4;-2;-1  1;2;3;4;5;6
7S3
molybdenum Shells
76
76
76
190.23
114.23
2, 8, 18, 32, 14, 2
[Xe] 4f14 5d6 6s2
5d6 6s2
-4;-2;-1  1;2;3;4;5;6;7;8
5D4
osmium Shells

Isotopes - Nuclear Properties

Isotopes
Naturally occurring stable isotopes:
92Mo, 94Mo, 95Mo, 96Mo, 97Mo, 98Mo.
Naturally occurring stable isotopes:
184Os, 187Os, 188Os, 189Os, 190Os, 192Os.

Chemical Properties: Ionization Energies and electron affinity

6
2.16
71.9 kJ/mol
684.3, 1560, 2618, 4480, 5257, 6640.8, 12125, 13860, 15835, 17980, 20190, 22219, 26930, 29196, 52490, 5.5×104, 6.14×104, 6.77×104, 7.4×104, 8.04×104, 8.7×104 kJ/mol
6
2.2
106.1 kJ/mol
840, 1.6×103 kJ/mol

Physical Properties

10.28 g/cm3
9.3326848249027

 

329 GPa
20 GPa
230 GPa
0.31


 

5.5 MPa
1530 MPa
1.5×103 MPa

 

2×107 S/m
5×10-8 m Ω
0.915

 

139 W/(m K)
4.8×10-6 K-1

 

Paramagnetic
N/A
1.17×10-8
1.122×10-9
0.0001203

 

N/A

 

6190 m/s
22.59 g/cm3
8.4209827357238

 

N/A
222 GPa
N/A
0.25


 

7 MPa
N/A
3920 MPa

 

1.2×107 S/m
8.1×10-8 m Ω
0.66

 

88 W/(m K)
5.1×10-6 K-1

 

Paramagnetic
N/A
6×10-10
1.1×10-10
1.4e-05

 

N/A

 

4940 m/s

Thermal Properties - Enthalpies and thermodynamics

2623 °C
4639 °C
N/A
0.915

 

36 kJ/mol
600 kJ/mol
N/A
3033 °C
5012 °C
N/A
0.66

 

31 kJ/mol
630 kJ/mol
N/A

Regulatory and Health - Health and Safety Parameters and Guidelines

CAS7439-98-7
RTECSQA4680000
4.1
3089
N/A
3
N/A
1
0

 

N/A
N/A
CAS7440-04-2
RTECSRN1100000
4.1
3089
N/A
4
N/A
N/A
1

 

N/A
N/A

Compare With Other Elements

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