Which of the following elements has the least tendency to form an ion?
A) Ac
B) H
C) Ar
D) S

Name: Which of the following elements has the least tendency to form an ion? A) Ac B) H C) Ar D) S
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Question

Quizplus · Accepted Answer

Noble gases, including Ar, have the least tendency to form ions because they have a full valence electron shell, making them already stable. Ac, H, and S all have incomplete valence electron shells and are more likely to lose, gain, or share electrons to become stable ions.

Which of the Following Elements Has the Least Tendency to Form