Tamos similarities and differences between the following set of ions

What’s the percent by mass of carbon in c10h14n2

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?

What is the indicator of the number of ions in solution? the amount of conductivity the amount of precipitate the amount of solute added