Which of the Following Statements, Which Was a Part of Dalton's

Multiple Choice

Which of the following statements, which was a part of Dalton's atomic theory, was later proved to be false?

A) All matter is made up of very tiny indivisible particles called atoms.
B) In ordinary chemical reactions, no atom of any element disappears or is changed into an atom of another element.
C) Compounds are formed by the chemical combination of two or more elements.
D) A molecule is a tightly bound combination of two or more atoms that act as a single unit.