Question

Elements like argon and krypton are inert because all of their electron shells are

A)Full
B)Empty
C)Half-full
D)Filled with an equal number of electrons

Answer 1

Argon and krypton are inert because their electron shells are full, making them noble gases with a stable electron configuration.

Step-by-step explanation:

Elements like argon and krypton are inert because all of their electron shells are A) Full. These elements belong to a category known as the noble gases, which are characterized by having their outermost electron shells completely filled with electrons. A full valence shell is the most stable electron configuration, which contributes to the inertness of these elements. Noble gases typically have eight electrons in their outer shells (except helium, which has two), conforming to the octet rule that contributes to chemical stability and low reactivity.