Final answer:
The model of the Atomic Theory is tentative because new evidence may require revisions to the theory. Scientific advancements have already led to changes in the atomic theory, such as the understanding that atoms can be further divided into subatomic particles, the variance in atomic mass among identical elements, and the possibility of transmuting elements through nuclear reactions.
Step-by-step explanation:
The model of the Atomic Theory might be tentative because C) New evidence may require revisions. Although the atomic theory, as proposed by John Dalton around 200 years ago, has been a cornerstone in the field of chemistry, it is not immune to change. Over time, scientific theories are meant to evolve based on new experimental evidence and discoveries.
While the fundamental idea that all matter consists of atoms has remained valid, subsequent scientific advancements have led to revisions in our understanding of the atomic theory. For instance, it was once believed that atoms were indivisible; however, modern science shows that atoms can be further subdivided into subatomic particles like electrons, protons, and neutrons. Moreover, not all atoms of an element are identical in mass, and atoms can be transformed from one element to another through nuclear fission and fusion.
This demonstrates that scientific theories are not static and that the atomic theory is tentative because it is subject to refinement as new data emerges. This is essential for the progression of scientific knowledge and for ensuring that our understanding of the natural world continues to improve.