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Periodic Table Element Comparison: Compare Elements - Iridium vs Silicon

Compare Iridium and Silicon

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

Facts

Iridium
77
Ir
192.217
Solid
Silver
transition metal
9
cobalt family 
6
d
[Xe] 4f14 5d7 6s2
2466 °C
4428 °C
2, 8, 18, 32, 15, 2
CAS7439-88-5
Neighborhood Elements of Iridium
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

History

History
The element Iridium was discovered by Smithson Tennant in year 1803 in France and United Kingdom. Iridium derived its name from from Iris, the Greek goddess of the rainbow
The element Silicon was discovered by Jöns Jacob Berzelius in year 1824 in Sweden. Silicon derived its name derived its name from from the Latin silex, 'flint' (originally silicium)

Presence: Abundance in Nature and Around Us

Ppb by weight (1ppb =10^-7 %)
2×10-7%
2×10-7%
5.4e-07
4×10-8%
N/A
N/A
0.0007
0.0009
0.14
0.27
1e-06
0.00026

Crystal Structure and Atomic Structure

180 pm
8.5202570921986 cm3
137 pm
N/A
425
iridium Spectrum
383.9, 383.9, 383.9 pm
π/2, π/2, π/2
Fm_ 3m
225

Face Centered Cubic

iridium Crystal 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

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
77
77
77
192.217
115.217
2, 8, 18, 32, 15, 2
[Xe] 4f14 5d7 6s2
5d7 6s2
-3;-1  1;2;3;4;5;6;7;8;9
4F9/2
iridium Shells
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

Isotopes - Nuclear Properties

Isotopes
Naturally occurring stable isotopes:
191Ir, 193Ir.
Naturally occurring stable isotopes:
28Si, 29Si, 30Si.

Chemical Properties: Ionization Energies and electron affinity

6
2.2
151 kJ/mol
880, 1.6×103 kJ/mol
4
1.9
133.6 kJ/mol
786.5, 1577.1, 3231.6, 4355.5, 16091, 19805, 23780, 29287, 33878, 38726 kJ/mol

Physical Properties

22.56 g/cm3
8.5202570921986

 

528 GPa
210 GPa
320 GPa
0.26


 

6.5 MPa
1760 MPa
1670 MPa

 

2.1×107 S/m
4.7×10-8 m Ω
0.11

 

150 W/(m K)
6.4×10-6 K-1

 

Paramagnetic
N/A
1.67×10-9
3.21×10-10
3.77e-05

 

N/A

 

4825 m/s
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

Thermal Properties - Enthalpies and thermodynamics

2466 °C
4428 °C
N/A
0.11

 

26 kJ/mol
560 kJ/mol
N/A
1414 °C
2.9×103 °C
N/A
N/A

 

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

Regulatory and Health - Health and Safety Parameters and Guidelines

CAS7439-88-5
N/A
4.1
3089
N/A
N/A
N/A
N/A
N/A

 

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

 

150 °C
N/A