Which of the following statements about the atom is false?
a) each atom has a tiny nucleus at its center.
b) all the protons and neutrons are located in the nucleus.
c) electrons travel in definite circular pathways around the nucleus.
d) all atomic nuclei are positively charged.

C) Electrons travel in definite circular pathways around the nucleus.

Explanation:

Atoms are the basic estructure of elements, they form the elements and teh neutrons, protons and electrons that form atoms make up the element that they form, protons and neutrons are located in the center, and are positively charged, while protons travel around the nucleus in diverse patterns attracted to the nucleus of the atom, so the only one that is not true is that electrons travel in definite circular pathways.

the answer is barium and copper bromide