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Periodic Table Element Comparison: Compare Elements - Iridium vs Cerium

Compare Iridium and Cerium

Compare Iridium and Cerium 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 Cerium with most reliable information about their properties, attributes, facts, uses etc. You can compare Ir vs Ce 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
Cerium
58
Ce
140.116
Solid
Silver
lanthanide
N/A
 
6
f
[Xe] 4f1 5d1 6s2
798 °C
3360 °C
2, 8, 18, 19, 9, 2
CAS7440-45-1
Neighborhood Elements of Cerium

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 Cerium was discovered by Martin Heinrich Klaproth in year 1803 in Germany and Sweden. Cerium derived its name derived its name from from the then recently discovered asteroid Ceres, considered a planet at the time

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
1×10-6%
4×10-7%
7.5e-07
6e-05
1.2×10-10%
N/A

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
185 pm
20.947226790253 cm3
N/A
N/A
0.6
cerium Spectrum
362, 362, 599 pm
π/2, π/2, 2 π/3
P63/mmc
194

Simple Hexagonal

cerium 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
58
58
58
140.116
82.116
2, 8, 18, 19, 9, 2
[Xe] 4f1 5d1 6s2
4f1 5d1 6s2
 2;3;4
1G4
cerium Shells

Isotopes - Nuclear Properties

Isotopes
Naturally occurring stable isotopes:
191Ir, 193Ir.
Naturally occurring stable isotopes:
136Ce, 138Ce, 140Ce, 142Ce.

Chemical Properties: Ionization Energies and electron affinity

6
2.2
151 kJ/mol
880, 1.6×103 kJ/mol
4
1.12
50 kJ/mol
534.4, 1050, 1949, 3547, 6325, 7490 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
6.689 g/cm3
20.947226790253

 

34 GPa
14 GPa
22 GPa
0.24


 

2.5 MPa
270 MPa
412 MPa

 

1.4×106 S/m
7.4×10-7 m Ω
0.022

 

11 W/(m K)
6.3×10-6 K-1

 

Paramagnetic
N/A
2.2×10-7
3.0826×10-8
0.0014716

 

N/A

 

2.1×103 m/s

Thermal Properties - Enthalpies and thermodynamics

2466 °C
4428 °C
N/A
0.11

 

26 kJ/mol
560 kJ/mol
N/A
798 °C
3360 °C
N/A
0.022

 

5.5 kJ/mol
350 kJ/mol
N/A

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
CAS7440-45-1
N/A
4.1
1333
N/A
3
N/A
2
2

 

N/A
N/A