Elements of group 8a of the periodic table are known as the noble gases. determine which of the following properties are characteristic of all naturally occurring noble gases

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.

output?

explanation:

your answer is a. the enthalpy of formation for a pure element in its standard state is always positive.