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Periodic Table Element Comparison: Compare Elements - Niobium vs Astatine

Compare Niobium and Astatine

Compare Niobium and Astatine 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 Astatine with most reliable information about their properties, attributes, facts, uses etc. You can compare Nb vs At 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
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Neighborhood Elements of Niobium
Astatine
85
At
210
Solid
Silver
halogens
17
fluorine family 
6
p
[Xe] 4f14 5d10 6s2 6p5
302 °C
N/A
2, 8, 18, 32, 18, 7
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Neighborhood Elements of Astatine

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 Astatine was discovered by Dale R. Corson in year 1940 in United States. Astatine derived its name derived its name from from the Greek astatos, 'unstable'

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
N/A
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
127 pm
N/A cm3
N/A
N/A
N/A
astatine Spectrum
N/A
N/A
N/A
N/A

Face Centered Cubic

astatine 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
85
85
85
210
125
2, 8, 18, 32, 18, 7
[Xe] 4f14 5d10 6s2 6p5
6s2 6p5
-1  1;3;5;7
2P3/2
astatine 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
7
2.2
270.1 kJ/mol
920 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
N/A
N/A

 

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


 

N/A
N/A
N/A

 

N/A
N/A
N/A

 

2 W/(m K)
N/A

 

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

 

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
302 °C
N/A
N/A
N/A

 

6 kJ/mol
40 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
CAS7440-68-8
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A

 

N/A
N/A