Exam (elaborations)
Radon Exam Study Guide 2024 with complete solution
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Radon Exam Study Guide 2024 with complete solution Nucleus of an atom Contains one or more positively charged protons and uncharged neutrons Number of protons Atomic number of an element reflects the.... Mass = Number of protons and neutrons Radon 222 (mass #) 86 protons (atomic number)...
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