We are calculating moles Im lost though.

Complete the table for ion charge based upon their losing or gaining electrons in the outer shell. (use the periodic table as necessary.) group most likely ionic charge # of valence electrons i +1 ii +2 iii +3 iv +4 or -4 v -3 vi -2 vii -1 viii 0

What overall charge must all compounds have

This drawing shows a human body system. what is the primary function of this body system?