When is an atom the most stable?
Question
When is an atom the most stable?
Solution
An atom is most stable when its outermost shell is full. This is often achieved when the atom has eight electrons in its outermost shell, a rule known as the octet rule. However, there are exceptions to this rule, especially for atoms with more than 20 electrons. The stability of an atom can also be affected by other factors such as the presence of unpaired electrons.
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