An example of a trace elements is? by Sunday | Mar 15 | Biology WAEC | 0 comments A. potassium B. calcium C. magnesium D. copper Correct Answer: Option D – copper Users Also Read These:Which of the following pairs of elements forms…Four elements P; Q; R and S have atomic numbers of…Elements X and Y have electronic configurations…The two elements 11X and 19Y are in the same group…Elements in the periodic table are arranged in the…