Cobalt is the twenty-seventh element in the periodic table. A periodic table contains 118 elements distributed in 7 rows and 18 columns. The rows are known as periods and the columns are the groups of the periodic table. The elements of the periodic table are arranged according to their atomic number.

Basic elemental properties of Cobalt

There are 118 different elements in the periodic table but there are some basic elemental properties of each. In a periodic table, elements with basic elemental properties are grouped together. Basic elemental properties of Cobalt are:

Atomic Symbol of Cobalt

Every element in the periodic table has its atomic symbol or chemical symbol for representation. The atomic symbol of Cobalt is “Co”

Atomic Number of Cobalt

Elements in the periodic table are arranged in groups and periods on the basis of their atomic number.

Atomic number is the number of protons present in the nucleus of an atom. The atomic number of Cobalt is 27. This shows Cobalt is the twenty-seventh element of the periodic table.

Short Electronic Configuration of Cobalt

Short Electronic Configuration of Cobalt is [Ar]4s2 3d 7

Block of Cobalt in Periodic Table

There are four blocks (s, p, d, f) in the periodic table. Cobalt belongs to the d-block of the periodic table. D block is the second block in the periodic table.

Group of Cobalt in Periodic Table

Groups are the columns of the periodic table and Cobalt belongs to the ninth group.

Period of Cobalt in Periodic Table

Periodic table is arranged in periods and groups. The rows going across left to right are periods and Cobalt is placed in the fourth period. Elements that are present in a period share common properties .

Atomic Mass of Cobalt 

Atomic mass is the mass of an atom and the atomic mass of Cobalt is 58.933194 u. If we round off the atomic mass of Cobalt, we get 59 u.

Thermodynamic properties of Cobalt

Thermodynamic properties are the characteristic features of a system, capable of specifying the system's state. The thermodynamic properties of an element include chemical, physical and thermal properties. The thermodynamic properties of Cobalt are:

Phase at STP

Phase at STP is the state in which an element is present. The stp phase of Cobalt is “Solid”.

Melting Point of Cobalt

Melting point is a temperature at which an element of substance changes its state from solid to liquid. The melting point of Cobalt gas is 1495 °C.

Boiling Point of Cobalt

A boiling point is a temperature at which an element of a substance starts turning into vapors. The boiling point of Cobalt gas is 2927 °C.

Molar Heat of Fusion of Cobalt

Molar Heat of Fusion is the energy required to melt each mole of substance. The molar heat of fusion of Cobalt is 16.2 kJ/mol.

Molar heat of Vaporization

The Molar heat of vaporization is the heat absorbed by the one specific mole of a substance. The molar heat of vaporization of Cobalt gas is 375 kJ/mol.

Specific heat at STP

The specific heat of Cobalt at STP is 421 J(kgK).

These are some of the main thermodynamic properties of Cobalt. Let’s find out all the material properties of Cobalt.

Material properties

We have discussed basic elemental properties and thermodynamic properties of Cobalt gas. Besides these, there are many material properties of Cobalt as well. Some of the material properties include density, molar volume, refractive index and thermal conductivity.

Density of Cobalt

The density of Cobalt element is  8.9 g/cm3

Liquid Density of Cobalt element

The liquid density of Cobalt atom is 7.75 g/cm3 

Molar Volume of Cobalt

The molar volume of Cobalt is 6.6cm3/mol

Mohs hardness of Cobalt Atom

The mohs hardness of Cobalt element is 5

Bulk modulus of Cobalt Gas

The bulk modulus of Cobalt Gas is 180 GPa

Shear modulus of Cobalt atom

The shear modulus of Cobalt element 75 GPa

Young's modulus of Cobalt

The young's modulus of Cobalt atom 209 GPa

Sound speed of Cobalt atom

The sound speed of Cobalt gas is 4720 m/s

Thermal expansion of Cobalt

The thermal expansion of Cobalt is 1.3 x 10-5 K-1

Thermal Conductivity of Cobalt

The thermal conductivity of Cobalt is 100 W/(mK)

These are the main material properties of Cobalt.

Electromagnetic properties of Cobalt

When there is any emission or absorption of electromagnetic radiations, a martial responds to these changes. All elements of a periodic table have electromagnetic properties. Some of the main electromagnetic properties of Cobalt gas include magnetic types, magnetic volume, mass magnetic susceptibility and color.

Electric type of Cobalt

The magnetic type Cobalt refers to the fact that it is a conductor.

Resistivity of Cobalt element

The resistivity of Cobalt element is 6 x 10-8 Ωm

Electrical conductivity of Cobalt gas

The electrical conductivity of Cobalt element is 1.7 x 107 s/m

Magnetic type of Cobalt element

The magnetic type of Cobalt atom is ferromagnetic

Color of Cobalt Gas

The color of Cobalt gas is gray.

These are some of the main electromagnetic properties of Cobalt gas.

Reactivity of Cobalt

Valency of Cobalt

The valency of a Cobalt element is a number that represents the ability of an atom to combine with other atoms. The valency of Cobalt is 4.

Electronegativity of Cobalt

Electronegativity of Cobalt is the tendency of its atom participating in a covalent bond to attract the bonding electrons. Cobalt has 1.88 electronegativity.

Electron affinity of Cobalt

Electron affinity of Cobalt gas is the energy released when one electron is added to a neutral atom to form an anion. The electron affinity of Cobalt is 63.7 kJ/mol

First ionization energy of Cobalt

It is the energy to remove the outermost electron from the neutral atom in the gas phase. The first ionization energy of Cobalt is 760.4 kJ/mol

Atomic properties

The atomic properties of Cobalt have term symbol, atomic radius, covalent radius, van der waals radius.

Term Symbol of Cobalt

The term symbol specifies the electronic state of an atom. The term symbol of Cobalt atom is 4F9/2

Atomic Radius of Cobalt

The total distance from an atom's nucleus to the outermost orbital of an electron is its atomic radius. The atomic radius of Cobalt is 135 pm.

Abundances of Cobalt

It is the measure that tells us about the percentage of which it is present. 

Abundance of Cobalt in the universe

The abundance of Cobalt in the universe is 3 x 10-4 mass %

Abundance of Cobalt in the solar system

The abundance of Cobalt in the solar system is 4 x 10-4 mass %

Abundance of Cobalt in earth's crust

The abundance of Cobalt in earth's crust is 0.003 mass %

Abundance of Cobalt in ocean

The abundance of Cobalt in ocean is 8 x 10-9 mass %

Universe Molar Abundances of Cobalt

The universe molar abundances of Cobalt is 6 x 10-6 mol %

Solar Molar Abundances of Cobalt

The solar molar abundances of Cobalt is 7 x 10 -6 mol %

Ocean Molar Abundances of Cobalt

The ocean molar abundances of Cobalt is 8 x 10-10 mol %

Crust Molar Abundances of Cobalt

The crust molar abundances of Cobalt is 9.9 x 10-4 mol %

Human Molar Abundances of Cobalt

The crust molar abundances of Cobalt is 2 x 10-7 mol %

Nuclear properties of Cobalt

Half life of Cobalt

Half life is the time for the radioactivity of a specified isotope to fall to half its original value. The half Life of Cobalt is stable.

Stable isotopes of Cobalt

The stable isotopes of Cobalt are 59 Co (100%) 

Nuclear Spin of Cobalt

The nuclear spin of Cobalt is 59 Co: 7/2-

Unstable isotopes of Cobalt

The unstable isotopes of Cobalt is 59 Co (5.2749 yr)

Neutron Cross Section of Cobalt

The neutron cross section of Cobalt is 37.2 b

Identifiers of Cobalt

CAS Number of Cobalt

The CAS number of Cobalt is 7440-48-4

PubChem CID number of Cobalt

The PubChem CID number of Cobalt is 104730