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A element which is not a monatomic
A.Helium
B.Argon
C.Iron
D.Oxygen

User Cheesysam
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1 Answer

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Answer:

A:Helium

Step-by-step explanation:

Some element are monatomic,meaning they are made of single (mon-)atom(-atomic)in their molecular form.

User Youssef Boudaya
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