[tex]\huge\underline{\sf{{Answer}}}[/tex] :
[tex]\huge\underline{\tt{C. \: Metal}}[/tex]
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All elements on the left and middle of the periodic table are metals. Non-metals, including elements that are gases at room temperature, are on the right-hand side. Halogens are gases found near the far-right of the table in column seven. Ions are charged forms of elements — atoms that have gained or lost electrons. All metals form positive ions; negative ions are only formed from non-metals are their compound.
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[tex] \orange{\begin{gathered} \orange{\tt{Dave}} \\ \large \boxed{ \ddot \smile} \end{gathered}} [/tex]
