What are the similarities and differences of the atomic models of
Democritus, Aristotle, and Dalton?

What happens to isotopes that are unstable?

If anyone would be able to me out with these three questions it would be these are from the chem 2202 course.

What effect would average population growth have on land usage? a. urban use of land would rise to more than 30 percent of available land. b. industrial use of land would rise to more than 30 percent of available land. c. the percentage of available land used as cropland would stay the same. d. cropland would fall to about 10 percent of available land.