Answer
Verified
390.9k+ views
Hint: Also known as the noble gases or the inert gases,they are known to occupy the zeroth group in the periodic table,and consist of seven elements,which are the end members of respective period of the periodic table.
Complete step by step:
Let us talk about the members of the inert gases:
- Helium, Neon, Argon, Krypton, Xenon,and Radon,are the members of inert gases.
-All of these except helium,have the highly stabilised \[\text{n}{{\text{s}}^{\text{2}}}\text{n}{{\text{p}}^{\text{6}}}\] configuration in their valence shell,whereas helium has stable \[\text{1}{{\text{s}}^{\text{2}}}\]configuration.
- All of these are gases and are chemically unreactive, thus known as inert gases.
Let us briefly know about their electronic configuration:
- Helium(He): \[\text{1}{{\text{s}}^{\text{2}}}\]
- Neon(Ne): \[\left[ \text{He} \right]\text{2}{{\text{s}}^{\text{2}}}\text{2}{{\text{p}}^{\text{6}}}\]
- Argon(Ar): \[\left[ \text{Ne} \right]\text{3}{{\text{s}}^{\text{2}}}\text{3}{{\text{p}}^{\text{6}}}\]
- Krypton(Kr): \[\left[ \text{Ar} \right]\text{3}{{\text{d}}^{\text{10}}}\text{4}{{\text{s}}^{\text{2}}}\text{4}{{\text{p}}^{\text{6}}}\]
- Xenon(Xe): \[\left[ \text{Kr} \right]\text{4}{{\text{d}}^{\text{10}}}\text{5}{{\text{s}}^{\text{2}}}\text{5}{{\text{p}}^{\text{6}}}\]
- Radon(Rn): \[\left[ \text{Xe} \right]\text{4}{{\text{f}}^{\text{14}}}\text{5}{{\text{d}}^{\text{10}}}\text{6}{{\text{s}}^{\text{2}}}\text{6}{{\text{p}}^{\text{6}}}\]
This elements share many similar properties,some of them are:
- All the orbitals in the atoms of these elements are doubly occupied, electrons can't participate in bonding.
- These gases exhibit very high ionisation enthalpy.
- As they have no tendency to accept the electron and therefore ,have large positive values of electron gain enthalpy.
- All these noble gases are monatomic, and they are colourless, odourless and tasteless.
- All these elements have very low melting and boiling points because of only one type of interatomic interaction that is the weak dispersion force and thus they are liquefied at very low temperatures.
- Helium has the lowest boiling point (\[\text{4}\text{.2K}\]) of any known substance.
- All these gases have a characteristic spectra by which they can be easily noticed.
- They show an increase in atomic radii with increase in atomic number.
- Though no true compounds of Helium,Neon,or Argon are yet to be known, there are very less compounds of Krypton too.
- Though we have few fluorides and oxygen based compounds of xenon.
Additional information:
-Helium is a non inflammable and light gas, and thus found its use in Magnetic Resonance Imaging(MRI) and filling balloons in meteorological observations.
-Neon is used in discharge tubes and fluorescent bulbs for display.
-Argon mainly provides an inert atmosphere for processes of arc welding of metals or alloys.
-There are no significant uses of Krypton and Xenon,and thus used in filling incandescent metal filament bulbs.
-Radon is generally used in radiography of cancer and photography of opaque internals.
Note: Most of the properties of noble gases including their chemically inert nature are ascribed to their closed valence structures.Since they exist in free form, air is the most important source except radon.
Complete step by step:
Let us talk about the members of the inert gases:
- Helium, Neon, Argon, Krypton, Xenon,and Radon,are the members of inert gases.
-All of these except helium,have the highly stabilised \[\text{n}{{\text{s}}^{\text{2}}}\text{n}{{\text{p}}^{\text{6}}}\] configuration in their valence shell,whereas helium has stable \[\text{1}{{\text{s}}^{\text{2}}}\]configuration.
- All of these are gases and are chemically unreactive, thus known as inert gases.
Let us briefly know about their electronic configuration:
- Helium(He): \[\text{1}{{\text{s}}^{\text{2}}}\]
- Neon(Ne): \[\left[ \text{He} \right]\text{2}{{\text{s}}^{\text{2}}}\text{2}{{\text{p}}^{\text{6}}}\]
- Argon(Ar): \[\left[ \text{Ne} \right]\text{3}{{\text{s}}^{\text{2}}}\text{3}{{\text{p}}^{\text{6}}}\]
- Krypton(Kr): \[\left[ \text{Ar} \right]\text{3}{{\text{d}}^{\text{10}}}\text{4}{{\text{s}}^{\text{2}}}\text{4}{{\text{p}}^{\text{6}}}\]
- Xenon(Xe): \[\left[ \text{Kr} \right]\text{4}{{\text{d}}^{\text{10}}}\text{5}{{\text{s}}^{\text{2}}}\text{5}{{\text{p}}^{\text{6}}}\]
- Radon(Rn): \[\left[ \text{Xe} \right]\text{4}{{\text{f}}^{\text{14}}}\text{5}{{\text{d}}^{\text{10}}}\text{6}{{\text{s}}^{\text{2}}}\text{6}{{\text{p}}^{\text{6}}}\]
This elements share many similar properties,some of them are:
- All the orbitals in the atoms of these elements are doubly occupied, electrons can't participate in bonding.
- These gases exhibit very high ionisation enthalpy.
- As they have no tendency to accept the electron and therefore ,have large positive values of electron gain enthalpy.
- All these noble gases are monatomic, and they are colourless, odourless and tasteless.
- All these elements have very low melting and boiling points because of only one type of interatomic interaction that is the weak dispersion force and thus they are liquefied at very low temperatures.
- Helium has the lowest boiling point (\[\text{4}\text{.2K}\]) of any known substance.
- All these gases have a characteristic spectra by which they can be easily noticed.
- They show an increase in atomic radii with increase in atomic number.
- Though no true compounds of Helium,Neon,or Argon are yet to be known, there are very less compounds of Krypton too.
- Though we have few fluorides and oxygen based compounds of xenon.
Additional information:
-Helium is a non inflammable and light gas, and thus found its use in Magnetic Resonance Imaging(MRI) and filling balloons in meteorological observations.
-Neon is used in discharge tubes and fluorescent bulbs for display.
-Argon mainly provides an inert atmosphere for processes of arc welding of metals or alloys.
-There are no significant uses of Krypton and Xenon,and thus used in filling incandescent metal filament bulbs.
-Radon is generally used in radiography of cancer and photography of opaque internals.
Note: Most of the properties of noble gases including their chemically inert nature are ascribed to their closed valence structures.Since they exist in free form, air is the most important source except radon.
Recently Updated Pages
Basicity of sulphurous acid and sulphuric acid are
Three beakers labelled as A B and C each containing 25 mL of water were taken A small amount of NaOH anhydrous CuSO4 and NaCl were added to the beakers A B and C respectively It was observed that there was an increase in the temperature of the solutions contained in beakers A and B whereas in case of beaker C the temperature of the solution falls Which one of the following statements isarecorrect i In beakers A and B exothermic process has occurred ii In beakers A and B endothermic process has occurred iii In beaker C exothermic process has occurred iv In beaker C endothermic process has occurred
The branch of science which deals with nature and natural class 10 physics CBSE
The Equation xxx + 2 is Satisfied when x is Equal to Class 10 Maths
How do you arrange NH4 + BF3 H2O C2H2 in increasing class 11 chemistry CBSE
Is H mCT and q mCT the same thing If so which is more class 11 chemistry CBSE
Trending doubts
Difference Between Plant Cell and Animal Cell
Difference between Prokaryotic cell and Eukaryotic class 11 biology CBSE
How do you solve x2 11x + 28 0 using the quadratic class 10 maths CBSE
Select the correct plural noun from the given singular class 10 english CBSE
What organs are located on the left side of your body class 11 biology CBSE
The sum of three consecutive multiples of 11 is 363 class 7 maths CBSE
What is the z value for a 90 95 and 99 percent confidence class 11 maths CBSE
Fill the blanks with the suitable prepositions 1 The class 9 english CBSE
How many squares are there in a chess board A 1296 class 11 maths CBSE