StoichiometryRelative Atomic Mass and Atomic Mass Unit1Choose the best answerOne atom of an element has a mass of 10.86 × 10⁻²⁶ kg. Which element is it most likely to be?ABoron, Ar = 11BCalcium, Ar = 40CSilver, Ar = 108DZinc, Ar = 65.4 Like 0 Discuss 0Share