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Which of the following statements regarding protons are correct? a. They have a negative charge b. They are equal to the number of electrons in a non-ionized atom c. They are equal to the atomic number in a non-ionized atom d. They have no mass e. They increase in number relative to neutrons, following electron capture |
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Answer» a. False. Protons have a positive charge. Electrons have a negative charge. b. True. c. True. Protons (atomic number (Z)) þ neutrons (A – Z) ¼ mass number (A)). d. False. Both protons and neutrons have a mass. Electrons have a negligible mass. e. False. Following electron capture the nucleus may increase its number of neutrons relative to protons by capturing an electron from the K-shell (p + þ → e n) |
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