How many oxygen atoms are in 1.40 g of quartz?

In the 1800s, one of the statements in john dalton's atomic theory was that atoms are indivisible. later experimental evidence led to the discovery of subatomic particles such as neutrons, electrons, and protons. what happened to the indivisible atom part of dalton's atomic theory, and why?

Draw two cyclic constitutional isomers of cis-1

Which process describes vaporization that takes place below the surface of a liquid? condensation melting boiling evaporation