Who was the first person to propose that atoms existed

Layers of rock containing fossils, like the layers illustrated here, are most likely composed of rocks.

Explain that newton first law,second law and third law of motion?

Which of the following is a conclusion that resulted from ernest rutherford’s scattering experiment? (will mark brainliest) a. the nucleus is negatively charged b. the atom is a dense solid and is indivisible c. the mass is conserved when atoms react chemically d. the nucleus is very small and the atom is mostly empty space