Shale rock was found on the top layer of a limestone sample. there is a leaf imprint on the shale rock and a fish fossil on the limestone. what can scientists learn from the imprint and fossil?

because the two particles have an equal charge, the charges will cancel out and give the atom an overall charge of 0. so, if at atom has 35 protons in the nucleus, we could expect it to have 35 electrons orbiting that nucleus.