In the modern periodic table, which of the following represents the last pair of elects for which Newlands' Law of Octaves would hold true? 1. AI and GA
2. AI and SI
3. NE and AR
4. MG and CA

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

Is the flow of energy during vaporizing more like the flow during melting or during freezing

Write a hypothesis that answers the lesson question, “while observing a chemical reaction, how can you tell which reactant is limiting? ” hypothesis: if a substance is the limiting reactant, then . . because . .