Which non-metal element is found in a gaseous state at room temperature?

Write the electron dot structures of magnesium and chlorine and show the formation of magnesium chloride by the transfer of electrons.

Which process is used to determine the reactivity of a metal?

Write the balanced chemical equation for the reaction of aluminium when heated in air. Also,write the name of the product.

An electrolytic cell consists of:
$(i)$ Positively charged cathode
$(ii)$ Negatively charged anode
$(iii)$ Positively charged anode
$(iv)$ Negatively charged cathode

Generally,metals are solid in nature. Which one of the following metals is found in liquid state at room temperature?