Chemistry, asked by aravindsenthil1313, 9 months ago

The group contains only gaseous elements is

Answers

Answered by dhanrajzingarkar
1

Answer:

nobal gasses, any of the seven chemical,

elements that make up group 18

Answered by KaurSukhvir
0

Answer:

The group contains only gaseous elements is group 18.

Explanation:

  • Elements of group 18 are known as inert or Noble gases. Because they do not participate on chemical reaction. That's why they are being called inert gases.
  • The elements in group 18 are He, Ne, Ar, Kr, Xe and Rn. The group 18 is present in the long modern periodic table in the right hand side.
  • All the noble gases except Helium have completely filled outermost shell. The electronic configuration is ns²np⁶ with complete octet. Helium had 1s² configuration.
  • As all the noble gases have complete octet, they have no tendency to gain or lose the electrons. So they do not participate in chemical reaction because of their stable configuration.
  • The atomicity of all noble gases is one. All noble gases are monoatomic.

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