Answer

What are three main ideas in Dalton's atomic theory? Check all that apply. A Go A DB tH Elements are composed of atoms. There are as many negatively charged electrons outside the nucleus as there are positively charged particles (protons) inside the nucleus, so that the atom is electrically neutral. Atoms combine to form compounds in simple, whole number ratios. All atoms of an element are identical, and each element has unique atoms. Most of the atom's mass and all of its positive charge are contained in a small core called the nucleus. Most of the volume of the atom is empty space through which the tiny, negatively charged electrons are dispersed