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)

Question

Responses

1 - alkali metals
1 - alkali metals

2 - alkaline earth metals
2 - alkaline earth metals

17 - halogens
17 - halogens

18 - noble gases

Answer 1

The element described has seven electrons in its outer shell, is toxic, is a gas at room temperature, and is highly reactive. This indicates that the element belongs to the group of halogens, which are found in Group 17 of the periodic table.

Therefore, the correct response is:

17 - halogens