Answer : The properties of noble gases which usually occurs in Group 8 A periodic table are described below;
i) They have an outer electrons configuration as
ii) Some elements like Ne and Ar does not form a stable chemical compounds.
iii) They have a large ionization energy, He has the largest ionization energy amongst the group.
Answer: It releases energy that is called the fusion
Explanation: The reaction, which it is known as a nuclear fusion that converts hydrogen atoms into helium.