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Regarding the atom, which of the following are true? a. The mass number is equal to the number of nucleons b. Positrons are found within the nucleusc. The inner shell influences the chemical properties of an atom d. The outermost shell with electrons is known as the valence shell e. Radioactivity is dependent on the nucleus |
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Answer» a. True. Nucleon is a collective term for neutrons and protons. Mass number is the number of neutrons and protons in an atom. b. False. A positron is a positively charged electron that is ejected following radioactive decay. c. False. The outer shell (valence shell) influences the chemical, thermal and optical properties of an atom. d. True. e. True. |
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