autumng7267 autumng7267 Today at 1:08 AM Chemistry Answered The element X occurs naturally to the extent of 60.50% 30X and the rest 32X. What is the atomic mass of X? (Use 4 sig. fig.) a.120.5 g/mol b.64.25 g/mol c.96.75 g/mol d.160.25 g/mol