The atomic theory has been revised many times over the last several hundred years. john dalton described the atom as a solid sphere while later scientists such as j. j. thomson and ernest rutherford developed different models of the atom.
why has the atomic theory changed so much over the last several centuries?
a new scientific method scientists form more efficient theories and models.
as new discoveries are made, existing theories are revised or replaced.
the atom has changed over time, and new theories must reflect those changes.
scientists with different opinions

Match the mixture with the substance// i really need on this guys (it’s a pic btw)

What type of organic molecule comprises the majority of a potato?

Which statement correctly describes the phosphate ion, ? it is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge distributed over the entire ion. it is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge on the phosphorus atom. it is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge distributed over the entire ion. it is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge on the phosphorus atom.