Question 1 0.5 pts What are three main ideas (postulates) in Dalton's atomic theory? (Select three) Atoms combine to form compounds in simple, whole number ratios. O 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 O Most of the atom's mass and all of its positive charge are contained in a small core called the nucleus O Elements are composed of atoms O Most of the volume of the atom is empty space through which the tiny, negatively charged electrons are dispersed. O All atoms of an element are identical, and each element has unique atoms D Question 2 0.5 pts Most of the alpha particles directed at a thin gold foil in Rutherford's experiment O were abworbed by the foil O bounced directly back from the foidl ãpassed directly through the foil undeflected O passed theough the foil but were deflected at an angle 0.5 pts D Question 3 Based on the nuclear model of the atom, which of the following statements best decribes the neutron? (Select all that apply.) O Neutrons are found mainly in the nucleus -Neutrons are particles with zero charge. O Neutrons are found mainly outside the nucleus O Neutrons are particles with a positive charge. O Neutrons are particles with a negative charge.
