Questions for bar graphs on page 122

1. The trend for the first graph is that it fluctuates between low numbers and then higher numbers. The trend for the second graph is similar to the first because it fluctuates and shows that the boiling points follow the same pattern as the oxygen.
2. Yes because the elements the elements go between being metals and nonmetals and you see that the boiling points raise and fall as one reads along the periodic table.
3. The periodic table is called periodic because it is constant pattern for all the elements’ atomic numbers, masses, and boiling points.
4. The highest oxide numbers on the table are near the noble gases on the right side of the table.
5. The elements with the highest boiling points are both close to the right and close to the left side of the periodic table.
6. The trends are that the elements with the higher boiling points have higher oxide levels.
7. Krypton should have the lowest boiling point because it is a noble gas because the noble gases all have low boiling points.

The boiling points should fluctuate starting with a low boiling point for gallium and then as one reads along the periodic table towards the noble gases the temperatures go higher and then lower again as you get to the noble gases