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The question is in the file :)
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2 votes
The question is in the file :)

The question is in the file :)-example-1
User Eltariel
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Elements 1 and 4 are metals i believe that its refering to iron (1) and copper (4)
User Jake Shorty
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3 and 1 are metals but not 2 as metals are not insulators or 4 as it is a gas at room temp
User Shingoo
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