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(6-15). True or False?

6. Protons are heavier than electrons. 7. Protons are attracted to neutrons. 8. Electrons are so small that they don't have electric charge. 9. The nucleus contains all the protons and the neutrons of an atom. 10. A proton and an electron have opposite charges. 11. The nucleus contains most of the mass of an atom. 12. Electrons repeal each other. 13. A proton is attracted to an electron. 14. Electrons and neutrons have opposite charges. 15. Neutrons repel each other.​