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1. Which one does not belong the the group?" helium iodine radon or krypton
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3 votes
1. Which one does not belong the the group?" helium iodine radon or krypton

User LiriB
by
3.9k points

1 Answer

3 votes

Answer:

Iodine

Step-by-step explanation:

Helium, Radon, and Krypton are all in group 18 but Iodine is not

(it's in group 17)

:)

User Daniel Grima
by
4.2k points
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