What might happen if scientists used different units for the same measurements?

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

The first element on the periodic table of elements is carbon. a. true b. false

Calculate the number of moles of ethane in 100 grams