If you know the atomic number of an element, can you figure out how many neutrons an atom of that element has? Can you come up with a close guess?

What kind of ion is contained in salts that produce an acidic solution? a positive ion that attracts a proton from water a positive ion that releases a proton to water a negative ion that attracts a proton from water a negative ion that releases a proton to water

How do you lengthen a pattern piece? (family and consumer science, sewing)

If many scientists conduct the same or similar experiments, and all obtain similar results, a can be written, which is a generally agreed-upon statement that explains and predicts how a natural phenomenon works.