<span>Patient who is very sick ill can not receive family members in the room because they can pass or sick up something</span>
Answer:
Water should be the answer.
After gaining electron Chlorine becomes an <em><u>anion.</u></em>
<em><u>and </u></em><em><u>it's</u></em><em><u> </u></em><em><u>symbol</u></em><em><u> </u></em><em><u>is</u></em><em><u>. </u></em>

Hope it helps