The element ________ is the most similar to helium in chemical and physical properties.
A)O
B)Mg
C)Be
D)Ar
E)Sr

Name: The element ________ is the most similar to helium in chemical and physical properties. A)O B)Mg C)Be D)Ar E)Sr
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Quizplus · Accepted Answer

Helium belongs to the noble gas family, and so does argon. They both have a full valence shell and low reactivity. Therefore,argon is the most similar to helium in chemical and physical properties.

The Element ________ Is the Most Similar to Helium in Chemical