Question

Which of the following statements is a part of John Dalton’s atomic theory?

A. every compound is composed of atoms of a single element

B. all elements are composed of atoms that cannot be divided

C. electrons move in specific orbits around the nucleus of an atom

D. all atoms of all elements Ww

Answer 1

only b is the right answer

tho i dont understand the last option

Answer 2

C electrons move in specific orbits around