Question

3. (SC.8.P.8.7) The nucleus of the atom contains what subatomic particle(s)?

a. Protons Only
b. Neutrons Only
c. Electrons Only
d. Protons and Neutrons
e. Protons and Electrons

4. (SC.8.P.8.7) In the current model of the atom

a. electrons and protons are mixed together in a solid sphere.
b. electrons travel as waves in the electron cloud that surrounds the nucleus.
c. electrons orbit around the nucleus like planets orbit the sun.
d. electrons and neutrons are located in the nucleus.