Base your answers to questions 66 through 68 on the information below.
in the early 1800s, john dalton proposed an atomic theory that was based on experimental observations made by several scientists. three concepts of dalton’s atomic theory are stated below.
statement a: atoms are indivisible and cannot be destroyed or broken down into smaller parts.
statement b: atoms of one element cannot be changed into atoms of another element.
statement c: all atoms of one element have the same mass.
explain, in terms of particles, why statement a is no longer accepted.