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What is not true about group 18 They are gases at room temperature. They have 8 valence electrons. They are known as halogens. They are non-reactive and highly stable.
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What is not true about group 18

They are gases at room temperature.
They have 8 valence electrons.
They are known as halogens.
They are non-reactive and highly stable.

User Karn
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Answer:

they are known as halogens

Step-by-step explanation:

everything else is correct

User SeeDerekEngineer
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