# Argon Element

Find elemental, thermodynamic, material, electromagnetic, atomic & nuclear properties of argon element along with reactivity and abundance.

Sarah Taylor-

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Argon is the eighteenth 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 Argon

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 Argon are:

### Atomic Symbol of Argon

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

### Atomic Number of Argon

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 Argon is 18. This shows Argon is the eighteenth element of the periodic table.

### Short Electronic Configuration of Argon

Short Electronic Configuration of Argon is [He]3s2 3P 6

### Block of Argon in Periodic Table

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

### Group of Argon in Periodic Table

Groups are the columns of the periodic table and Argon belongs to the eighteenth group.

### Period of Argon in Periodic Table

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

### Atomic Mass of Argon

Atomic mass is the mass of an atom and the atomic mass of Argon is 39.948 u. If we round off the atomic mass of Argon, we get 40 u.

## Thermodynamic properties of Argon

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 Argon are:

### Phase at STP

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

### Melting Point of Argon

Melting point is a temperature at which an element of substance changes its state from solid to liquid. The melting point of Argon gas is -189.3 °C.

### Boiling Point of Argon

A boiling point is a temperature at which an element of a substance starts turning into vapors. The boiling point of Argon gas is -185.8 °C.

### Critical Temperature of Argon

A critical temperature is a point at which a gas cannot become liquid even if we are applying pressure. The critical temperature of Argon gas is 150.87 K.

### Critical Pressure of Argon

The critical pressure required to liquefy a gas at its critical temperature. The critical pressure of Argon gas is 4.898 MPa.

### Molar Heat of Fusion of Argon

Molar Heat of Fusion is the energy required to melt each mole of substance. The molar heat of fusion of Argon is 1.18 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 Argon gas is 6.5 kJ/mol.

### Specific heat at STP

The specific heat of Argon at STP is 520.33 J(kgK).

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

## Material properties

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

### Density of Argon

The density of Argon element is  0.001784 g/cm3

### Molar Volume of Argon

The molar volume of Argon is 22,390cm3/mol

### Sound speed of Argon atom

The sound speed of Argon gas is 319 m/s

### Thermal Conductivity of Argon

The thermal conductivity of Argon is 0.01772 W/(mK)

These are the main material properties of Argon.

## Electromagnetic properties of Argon

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 Argon gas include magnetic types, magnetic volume, mass magnetic susceptibility and color.

### Magnetic type of Argon element

The magnetic type of Argon atom is diamagnetic

### Volume Magnetic Susceptibility of Argon

The volume magnetic susceptibility of Argon is -1.07 x 10 -8

### Mass Magnetic Susceptibility of Argon

The mass magnetic susceptibility of Argon is -6 x 10-9 m3/kg

### Molar Magnetic Susceptibility of Argon

The molar magnetic susceptibility of Argon gas is -2.4 x 10-10 m3/mol

### Color of Argon Gas

Argon is a colorless gas.

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

## Reactivity of Argon

### Valency of Argon

The valency of a Argon element is a number that represents the ability of an atom to combine with other atoms. The valency of Argon is 0.

### Electron affinity of Argon

Electron affinity of Argon gas is the energy released when one electron is added to a neutral atom to form an anion. The electron affinity of Argon is 52.8 kJ/mol

### First ionization energy of Argon

It is the energy to remove the outermost electron from the neutral atom in the gas phase. The first ionization energy of Argon is 1520.6 kJ/mol

## Atomic properties

Term Symbol of Argon

The term symbol specifies the electronic state of an atom. The term symbol of Argon atom is 1 S 0

The total distance from an atom's nucleus to the outermost orbital of an electron is its atomic radius. The atomic radius of Argon is 71 pm.

Covalent radius is the measurement of an atom's size that forms a covalent bond. The covalent radius of Argon is 106 pm.

### Van der Waals Radius of Argon

Van der waals radius is the measurement for the size of an atom that is not chemically bonded. The van der Waals radius of Argon is 188 pm.

## Abundances of Argon

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

### Abundance of Argon in the universe

The abundance of Argon in the universe is 0.02 mass %

### Abundance of Argon in the solar system

The abundance of Argon in the solar system is 0.007 mass %

### Abundance of Argon in earth's crust

The abundance of Argon in earth's crust is 1.5 x 10-4 mass %

### Abundance of Argon in ocean

The abundance of Argon in ocean is 4.5 x 10-5 mass %

### Universe Molar Abundances of Argon

The universe molar abundances of Argon is 6 x 10-4 mol %

### Solar Molar Abundances of Argon

The solar molar abundances of Argon is 2 x 10 -4 mol %

### Ocean Molar Abundances of Argon

The ocean molar abundances of Argon is 7 x 10-6 mol %

### Crust Molar Abundances of Argon

The crust molar abundances of Argon is 7.8 x 10-5 mol %

## Nuclear properties of Argon

### Half life of Argon

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

### Stable isotopes of Argon

The stable isotopes of Argon are 40 Ar (99.6003%)

### Nuclear Spin of Argon

The nuclear spin of Argon is 36 Ar: 0+

### Unstable isotopes of Argon

The unstable isotopes of Argon is 39 Ar (269 yr)

### Neutron Cross Section of Argon

The neutron cross section of Argon is 0.65 b

## Identifiers of Argon

### CAS Number of Argon

The CAS number of Argon is 7440-37-1

### PubChem CID number of Argon

The PubChem CID number of Argon is 23968