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Periodic Table Element Comparison: Compare Elements - Iron vs Cobalt

Compare Iron and Cobalt

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

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

1

2

3

4

5

6

57 - 71
La - Lu

7

2
8
18
32
18
8
1

2
8
18
32
18
8
2

89 - 103
Ac - Lr

2
8
18
32
32
10
2

2
8
18
32
32
11
2

2
8
18
32
32
12
2

2
8
18
32
32
13
2

2
8
18
32
32
14
2

2
8
18
32
32
15
2

2
8
18
32
32
16
2

2
8
18
32
32
17
2

2
8
18
32
32
18
2

2
8
18
32
32
18
3

2
8
18
32
32
18
4

2
8
18
32
32
18
5

2
8
18
32
32
18
6

2
8
18
32
32
18
7

2
8
18
32
32
18
8

2
8
18
32
18
9
2

2
8
18
32
18
10
2

2
8
18
32
20
9
2

2
8
18
32
21
9
2

2
8
18
32
22
9
2

2
8
18
32
24
8
2

2
8
18
32
25
8
2

2
8
18
32
25
9
2

2
8
18
32
27
8
2

2
8
18
32
28
8
2

2
8
18
32
29
8
2

2
8
18
32
30
8
2

2
8
18
32
31
8
2

2
8
18
32
32
8
2

2
8
18
32
32
8
3

iron

iron Shell Structure

26 Fe Iron

cobalt

cobalt Shell Structure

27 Co Cobalt

Periodic Table Element Comparison

Facts

Name
Atomic Number
Atomic Symbol
Atomic Weight
Phase
Color
Classification
Group in Periodic Table
Group Name
Period in Periodic Table
Block in Periodic Table
Electronic Configuration
Melting Point
Boiling Point
Electronic Shell Structure
CAS Number
Neighborhood Elements

Iron
26
Fe
55.845
Solid
Gray
transition metal
8
iron family
4
d
[Ar] 3d6 4s2
1538 °C
2861 °C
2, 8, 14, 2
CAS7439-89-6
Neighborhood Elements of Iron

Cobalt
27
Co
58.9332
Solid
Gray
transition metal
9
cobalt family
4
d
[Ar] 3d7 4s2
1495 °C
2927 °C
2, 8, 15, 2
CAS7440-48-4
Neighborhood Elements of Cobalt

History

History

The element Iron was discovered by unknown in year 2000 BC in unknown place. Iron derived its name from from English word (ferrum in Latin)

The element Cobalt was discovered by Georg Brandt in year 1735 in Sweden. Cobalt derived its name derived its name from from the German word Kobold, meaning 'goblin'

Presence: Abundance in Nature and Around Us

Ppb by weight (1ppb =10^-7 %)

Abundance in Universe
Abundance in Sun
Abundance in Meteorites
Abundance in Earth's Crust
Abundance in Oceans
Abundance in Humans

0.0011
0.001
0.22
0.063
3×10-7%
6e-05

3e-06
4e-06
0.00059
3e-05
8×10-9%
2×10-6%

Crystal Structure and Atomic Structure

Atomic Radius
Atomic Volume
Covalent Radius
Van der Waals Radius
Neutron Cross Section
Atomic Spectrum
Lattice Constant
Lattice Angle
Space Group Name
Space Group Number
Crystal Structure

156 pm
7.0923291846584 cm³
125 pm
N/A
2.56

286.65, 286.65, 286.65 pm
π/2, π/2, π/2
Im_ 3m
229
Body Centered Cubic

152 pm
6.6217078651685 cm³
126 pm
N/A
37.2

250.71, 250.71, 406.95 pm
π/2, π/2, 2 π/3
P63/mmc
194
Simple Hexagonal

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

26
26
26
55.845
29.845
2, 8, 14, 2
[Ar] 3d6 4s2
3d6 4s2
-4;-2;-1 1;2;3;4;5;6;7
⁵D₄

27
27
27
58.9332
31.9332
2, 8, 15, 2
[Ar] 3d7 4s2
3d7 4s2
-3;-1 1;2;3;4;5
⁴F_9/2

Isotopes - Nuclear Properties

Isotopes

Naturally occurring stable isotopes: 54Fe, 56Fe, 57Fe, 58Fe.

Naturally occurring stable isotopes: 59Co.

Chemical Properties: Ionization Energies and electron affinity

Valence or Valency
Electronegativity
ElectronAffinity
Ionization Energies

3
1.83
15.7 kJ/mol
762.5, 1561.9, 2957, 5290, 7240, 9560, 12060, 14580, 22540, 25290, 2.8×104, 31920, 34830, 37840, 4.41×104, 47206, 1.222×105, 1.31×105, 1.405×105, 1.526×105, 1.63×105 kJ/mol

4
1.88
63.7 kJ/mol
760.4, 1648, 3232, 4950, 7670, 9840, 12440, 15230, 17959, 26570, 2.94×104, 3.24×104, 3.66×104, 3.97×104, 4.28×104, 49396, 52737, 134810, 145170, 1.547×105, 1.674×105 kJ/mol

Physical Properties

Density
Molar Volume
Elastic Properties
Young Modulus
Shear Modulus
Bulk Modulus
Poisson Ratio
Hardness - Tests to Measure of Hardness of Element
Mohs Hardness
Vickers Hardness
Brinell Hardness
Electrical Properties
Electrical Conductivity
Resistivity
Superconducting Point
Heat and Conduction Properties
Thermal Conductivity
Thermal Expansion
Magnetic Properties
Magnetic Type
Curie Point
Mass Magnetic Susceptibility
Molar Magnetic Susceptibility
Volume Magnetic Susceptibility
Optical Properties
Refractive Index
Acoustic Properties
Speed of Sound

7.874 g/cm3
7.0923291846584

211 GPa
82 GPa
170 GPa
0.29

4 MPa
608 MPa
490 MPa

1×107 S/m
9.7×10-8 m Ω
N/A

80 W/(m K)
0.0000118 K-1

Ferromagnetic
1043 K
N/A
N/A
N/A

N/A

4910 m/s

8.9 g/cm3
6.6217078651685

209 GPa
75 GPa
180 GPa
0.31

5 MPa
1043 MPa
700 MPa

1.7×107 S/m
6×10-8 m Ω
N/A

100 W/(m K)
0.000013 K-1

Ferromagnetic
1394 K
N/A
N/A
N/A

N/A

4720 m/s

Thermal Properties - Enthalpies and thermodynamics

Melting Point
Boiling Point
Critical Temperature
Superconducting Point
Enthalpies
Heat of Fusion
Heat of Vaporization
Heat of Combustion

1538 °C
2861 °C
N/A
N/A

13.8 kJ/mol
347 kJ/mol
N/A

1495 °C
2927 °C
N/A
N/A

16.2 kJ/mol
375 kJ/mol
N/A

Regulatory and Health - Health and Safety Parameters and Guidelines

CAS Number
RTECS Number
DOT Hazard Class
DOT Numbers
EU Number
NFPA Fire Rating
NFPA Hazards
NFPA Health Rating
NFPA Reactivity Rating
More
AutoIgnition Point
Flashpoint

CAS7439-89-6
RTECSNO4565500
4.1
3089
N/A
1
N/A
1
0

100 °C
N/A

CAS7440-48-4
RTECSGF8750000
4.1
3089
N/A
N/A
N/A
N/A
N/A

N/A
N/A

Compare With Other Elements