________ was the first person to propose a consistent "modern" atomic theory.
A)Dalton
B)Democritus
C)Proust
D)Lavoisier

Question

Quizplus · Accepted Answer

Dalton proposed his atomic theory in 1803, which laid the foundation for modern atomic theory. Democritus was the first to propose the concept of atoms, but his ideas were not based on scientific evidence. Proust is known for his law of definite proportions, which states that the ratio of elements in a compound is constant, but he did not propose a modern atomic theory. Lavoisier is known for his contributions to the law of conservation of mass and the development of the metric system, but he did not propose a modern atomic theory.

________ Was the First Person to Propose a Consistent "Modern