Which part of modern atomic theory was first developed by John Dalton?
A. Atoms cannot be divided.
B. Electrons are spread throughout an atom.
O C. Atoms are rearranged during chemical reactions.
O D. Electrons are found in a cloud around the nucleus.
All matter is made of atoms and atoms are indivisible and indestructible. compounds are formed by a combination of two or more different kinds of atoms.