At Westonci.ca, we make it easy for you to get the answers you need from a community of knowledgeable individuals. Get immediate and reliable solutions to your questions from a community of experienced experts on our Q&A platform. Experience the ease of finding precise answers to your questions from a knowledgeable community of experts.

Which element has exactly five electrons in the highest principal energy level (the outer shell)?
a. B 
b. Ba
c. P 
d. Mn