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Periodic Table Element Comparison: Compare Elements - Tantalum vs Potassium

Compare Tantalum and Potassium

Compare Tantalum and Potassium 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 Potassium with most reliable information about their properties, attributes, facts, uses etc. You can compare Ta vs K 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
Potassium
19
K
39.0983
Solid
Silver
alkali metal
1
lithium family 
4
s
[Ar] 4s1
63.38 °C
759 °C
2, 8, 8, 1
CAS7440-09-7
Neighborhood Elements of Potassium

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 Potassium was discovered by Humphry Davy in year 1807 in United Kingdom. Potassium derived its name derived its name from from New Latin potassa, 'potash' (kalium in Latin)

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
3e-06
4e-06
0.0007
0.015
0.00042
0.002

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
243 pm
45.67558411215 cm3
196 pm
275 pm
2.1
potassium Spectrum
532.8, 532.8, 532.8 pm
π/2, π/2, π/2
Im_ 3m
229

Body Centered Cubic

potassium 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
19
19
19
39.0983
20.0983
2, 8, 8, 1
[Ar] 4s1
4s1
-1  1
2S1/2
potassium Shells

Isotopes - Nuclear Properties

Isotopes
Naturally occurring stable isotopes:
181Ta.
Naturally occurring stable isotopes:
39K, 41K.

Chemical Properties: Ionization Energies and electron affinity

5
1.5
31 kJ/mol
761, 1.5×103 kJ/mol
1
0.82
48.4 kJ/mol
418.8, 3052, 4420, 5877, 7975, 9590, 11343, 14944, 16963.7, 48610 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
0.856 g/cm3
45.67558411215

 

N/A
1.3 GPa
3.1 GPa
N/A


 

0.4 MPa
N/A
0.363 MPa

 

1.4×107 S/m
7×10-8 m Ω
N/A

 

100 W/(m K)
N/A

 

Paramagnetic
N/A
6.7×10-9
2.62×10-10
5.74×10-6

 

N/A

 

2×103 m/s

Thermal Properties - Enthalpies and thermodynamics

3017 °C
5458 °C
N/A
4.47

 

36 kJ/mol
735 kJ/mol
N/A
63.38 °C
759 °C
2223 K
N/A

 

2.33 kJ/mol
76.9 kJ/mol
-182 J/(kg K)

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
CAS7440-09-7
RTECSTS6460000
4.3
2257
N/A
3
Water Reactive
3
2

 

440 °C
N/A