An atom of an element X gains two electrons. The symbol of the ion formed is? by Sunday | May 7 | Chemistry WAEC | 0 comments A. X + B. X 2+ C. X 2- D. X – Correct Answer: Option C C. X 2- Users Also Read These:When ammonia and hydrogen ion bond together to form…The nucleon number and the proton number of a…The bond formed when two electrons that are shared…What is the mass number of an element if its atom…The bond formed when ammonia reacts with hydrogen…