The main reason that scientists would do a descriptive investigation is that _____. A. they don't like doing normal experiments
B. they can't make observations about their topic C. they're trying to make a significant new scientific discovery D. they're studying something for which they can't do an experiment
The number of protons in the nucleus of the atom is equal to the atomic number (z) and the number of electrons in a neutral atom is equal to the number of protons
