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Periodic Table Element Comparison: Compare Elements - Tantalum vs Molybdenum

Compare Tantalum and Molybdenum

Compare Tantalum and Molybdenum 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 Tantalum vs Molybdenum with most reliable information about their properties, attributes, facts, uses etc. You can compare Ta vs Mo on more than 90 properties like electronegativity , oxidation state, atomic shells, orbital structure, Electronaffinity, physical states, electrical conductivity and many more.

Facts

Tantalum
73
Ta
180.9479
Solid
Gray
transition metal
5
vanadium family 
6
d
[Xe] 4f14 5d3 6s2
3017 °C
5458 °C
2, 8, 18, 32, 11, 2
CAS7440-25-7
Neighborhood Elements of Tantalum
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

History

History
The element Tantalum was discovered by Anders Gustaf Ekeberg in year 1802 in Sweden. Tantalum derived its name from from King Tantalus, father of Niobe from Greek mythology
The element Molybdenum was discovered by Carl Wilhelm Scheele in year 1781 in Sweden. Molybdenum derived its name derived its name from from the Greek word molybdos meaning 'lead'

Presence: Abundance in Nature and Around Us

Ppb by weight (1ppb =10^-7 %)
8×10-9%
N/A
2×10-6%
1.7e-06
2×10-10%
N/A
5×10-7%
9×10-7%
1.2e-06
1.1e-06
1×10-6%
1e-07

Crystal Structure and Atomic Structure

200 pm
10.867741741742 cm3
138 pm
N/A
20.5
tantalum Spectrum
330.13, 330.13, 330.13 pm
π/2, π/2, π/2
Im_ 3m
229

Body Centered Cubic

tantalum Crystal 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

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
73
73
73
180.9479
107.9479
2, 8, 18, 32, 11, 2
[Xe] 4f14 5d3 6s2
5d3 6s2
-3;-1  1;2;3;4;5
4F3/2
tantalum Shells
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

Isotopes - Nuclear Properties

Isotopes
Naturally occurring stable isotopes:
181Ta.
Naturally occurring stable isotopes:
92Mo, 94Mo, 95Mo, 96Mo, 97Mo, 98Mo.

Chemical Properties: Ionization Energies and electron affinity

5
1.5
31 kJ/mol
761, 1.5×103 kJ/mol
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

Physical Properties

16.65 g/cm3
10.867741741742

 

186 GPa
69 GPa
200 GPa
0.34


 

6.5 MPa
873 MPa
800 MPa

 

7.7×106 S/m
1.3×10-7 m Ω
4.47

 

57 W/(m K)
6.3×10-6 K-1

 

Paramagnetic
N/A
1.07×10-8
1.936×10-9
0.0001782

 

N/A

 

3.4×103 m/s
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

Thermal Properties - Enthalpies and thermodynamics

3017 °C
5458 °C
N/A
4.47

 

36 kJ/mol
735 kJ/mol
N/A
2623 °C
4639 °C
N/A
0.915

 

36 kJ/mol
600 kJ/mol
N/A

Regulatory and Health - Health and Safety Parameters and Guidelines

CAS7440-25-7
RTECSWW5505000
4.1
3089
N/A
N/A
N/A
N/A
N/A

 

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

 

N/A
N/A

Compare With Other Elements

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