Question

question 18 of 28 when is an atom most stable? a. when it has 2 electrons in the outermost shell b. when its outermost electron shell is empty c. when it has 1 electron in the outermost shell d. when its outermost electron shell is full

Explanation:

Atoms are most stable when their outermost electron shell is full (octet or duet rule).

Answer:

D. When its outermost electron shell is full