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Periodic Table Element Comparison: Compare Elements - Niobium vs Technetium

Compare Niobium and Technetium

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

Facts

Niobium
41
Nb
92.90638
Solid
Gray
transition metal
5
vanadium family 
5
d
[Kr] 4d4 5s1
2477 °C
4744 °C
2, 8, 18, 12, 1
CAS7440-03-1
Neighborhood Elements of Niobium
Technetium
43
Tc
98
Solid
Silver
transition metal
7
manganese family 
5
d
[Kr] 4d5 5s2
2157 °C
4265 °C
2, 8, 18, 13, 2
CAS7440-26-8
Neighborhood Elements of Technetium

History

History
The element Niobium was discovered by Charles Hatchett in year 1801 in United Kingdom. Niobium derived its name from from Niobe, daughter of king Tantalus from Greek mythology
The element Technetium was discovered by Emilio Segrè in year 1937 in Italy. Technetium derived its name derived its name from from the Greek tekhnètos meaning 'artificial'

Presence: Abundance in Nature and Around Us

Ppb by weight (1ppb =10^-7 %)
2×10-7%
4×10-7%
1.9e-07
1.7e-05
1×10-10%
N/A
N/A
None
None
None
None
None

Crystal Structure and Atomic Structure

198 pm
10.840884480747 cm3
137 pm
N/A
1.15
niobium Spectrum
330.04, 330.04, 330.04 pm
π/2, π/2, π/2
Im_ 3m
229

Body Centered Cubic

niobium Crystal Structure
183 pm
8.5217391304348 cm3
156 pm
N/A
22
technetium Spectrum
273.5, 273.5, 438.8 pm
π/2, π/2, 2 π/3
P63/mmc
194

Simple Hexagonal

technetium 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
41
41
41
92.90638
51.90638
2, 8, 18, 12, 1
[Kr] 4d4 5s1
4d4 5s1
-3;-1  1;2;3;4;5
6D1/2
niobium Shells
43
43
43
98
55
2, 8, 18, 13, 2
[Kr] 4d5 5s2
4d5 5s2
-3;-1  1;2;3;4;5;6;7
6S5/2
technetium Shells

Isotopes - Nuclear Properties

Isotopes
Naturally occurring stable isotopes:
93Nb.
Naturally occurring stable isotopes:
None.

Chemical Properties: Ionization Energies and electron affinity

5
1.6
86.1 kJ/mol
652.1, 1380, 2416, 3.7×103, 4877, 9847, 1.21×104 kJ/mol
6
1.9
53 kJ/mol
702, 1470, 2850 kJ/mol

Physical Properties

8.57 g/cm3
10.840884480747

 

105 GPa
38 GPa
170 GPa
0.4


 

6 MPa
1320 MPa
736 MPa

 

6.7×106 S/m
1.5×10-7 m Ω
9.25

 

54 W/(m K)
7.3×10-6 K-1

 

Paramagnetic
N/A
2.76×10-8
2.56×10-9
0.000237

 

N/A

 

3480 m/s
11.5 g/cm3
8.5217391304348

 

N/A
N/A
N/A
N/A


 

N/A
N/A
N/A

 

5×106 S/m
2×10-7 m Ω
7.8

 

51 W/(m K)
N/A

 

Paramagnetic
N/A
3.42×10-8
3.352×10-9
0.0003933

 

N/A

 

N/A

Thermal Properties - Enthalpies and thermodynamics

2477 °C
4744 °C
N/A
9.25

 

26.8 kJ/mol
690 kJ/mol
N/A
2157 °C
4265 °C
N/A
7.8

 

23 kJ/mol
550 kJ/mol
N/A

Regulatory and Health - Health and Safety Parameters and Guidelines

CAS7440-03-1
RTECSQT9900000
N/A
N/A
N/A
N/A
N/A
N/A
N/A

 

N/A
N/A
CAS7440-26-8
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A

 

N/A
N/A

Compare With Other Elements

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