Which statement best summarizes the gen- eral nature of investigations during the 1800s related to the acquisition and development of knowledge concerning the atomic structure of matter?
1. The use of new experimental and math- ematical techniques provide information con- cerning the organization of subatomic parti- cles in atoms.
2. Quantitative measurements, particularly those related to mass, lead to the formula- tion of fundamental laws leading to an atomic theory of matter.
3. The development and use of electrical probes to study matter lead to experimental evidence for the existence of subatomic parti- cles in atoms.
4. Qualitative observations, although often influenced by ideas related to magic and mys- ticism, provide glimpses of the structure of matter.
