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:Elements X and Y have electronic configurations…The atoms of four elements are represented as 20Q,…The bones of the legs of a six years old boy are…The two elements 11X and 19Y are in the same group…Which of the following is not regarded as a…