<em>Mercury is the only element found in liquid form at room temperature of all the metals.</em>
<em>Option: C</em>
<u>Explanation:</u>
There are many metals which share valence electrons with other atoms. Mercury doesn't share electrons with other atoms this is because the <em>electrons in the mercury atom</em> are bounded and not easily moved.
Mercury has a poor electrical conductors, low melting point and poor thermal conductors. Mercury is the only metal that is <em>present in the liquid form at room temperature.</em>
