A scientist studies an element that has seven electrons in its outer shell, is fairly toxic, is a gas at room temperature, and is highly reactive. To which group of the periodic table does this element belong?(1 point)

Responses

17 - halogens
17 - halogens
2 - alkaline earth metals
2 - alkaline earth metals
1 - alkali metals
1 - alkali metals
18 - noble gases
18 - noble gases

1 answer

17 - halogens

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