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Periodic Table Element Comparison: Compare Elements - Silicon vs Technetium

Compare Silicon and Technetium

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

Facts

Silicon
14
Si
28.0855
Solid
Gray
metalloid
14
carbon family 
3
p
[Ne] 3s2 3p2
1414 °C
2.9×103 °C
2, 8, 4
CAS7440-21-3
Neighborhood Elements of Silicon
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 Silicon was discovered by Jöns Jacob Berzelius in year 1824 in Sweden. Silicon derived its name from from the Latin silex, 'flint' (originally silicium)
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 %)
0.0007
0.0009
0.14
0.27
1e-06
0.00026
N/A
None
None
None
None
None

Crystal Structure and Atomic Structure

111 pm
12.053862660944 cm3
111 pm
210 pm
171
silicon Spectrum
543.09, 543.09, 543.09 pm
π/2, π/2, π/2
Fd_ 3m
227

Tetrahedral Packing

silicon 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
14
14
14
28.0855
14.0855
2, 8, 4
[Ne] 3s2 3p2
3s2 3p2
-4;-3;-2;-1  1;2;3;4
3P0
silicon 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:
28Si, 29Si, 30Si.
Naturally occurring stable isotopes:
None.

Chemical Properties: Ionization Energies and electron affinity

4
1.9
133.6 kJ/mol
786.5, 1577.1, 3231.6, 4355.5, 16091, 19805, 23780, 29287, 33878, 38726 kJ/mol
6
1.9
53 kJ/mol
702, 1470, 2850 kJ/mol

Physical Properties

2.33 g/cm3
12.053862660944

 

47 GPa
N/A
100 GPa
N/A


 

6.5 MPa
N/A
N/A

 

1×103 S/m
0.001 m Ω
N/A

 

150 W/(m K)
2.6×10-6 K-1

 

Diamagnetic
N/A
-1.6×10-9
-4.49×10-11
-3.73×10-6

 

N/A

 

2.2×103 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

1414 °C
2.9×103 °C
N/A
N/A

 

50.2 kJ/mol
359 kJ/mol
-9055 J/(kg K)
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

CAS7440-21-3
RTECSVW0400000
4.1
1346
N/A
0
N/A
1
0

 

150 °C
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