Answer:
The elements of group 18 or group of "Noble Gases" are non-reactive elements.
Explanation:
The reactivity of an element measures the tendency to combine with others. In the formation of compounds there is a tendency to catch, lose or share electrons between atoms.
The noble gases are placed in group 18 of the periodic table. The seven gases are helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), radon (Rn) and oganeson (Og). These gases have a very low chemical reactivity, that is, little combination with other elements of the periodic table. For that reason they are called inert gases. This behavior is due to its electronic configuration, because its outermost layer or valence layer is always complete, being the stable element by itself, without the need to borrow or share electrons.
As mentioned, noble gases are not very reactive, that is, they do not usually form bonds between atoms. This means that they don't react much with other substances, they don't even react between atoms of the same gas. The exceptions to this rule are few, and usually involve heavier noble gases, such as xenon or radon.
In summary, the elements of group 18 or group of "Noble Gases" are non-reactive elements.
