Exam (elaborations)
BIOL 1121 UPDATED Exam Questions and CORRECT Answers
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If xenon has an atomic number of 54 and a mass number of 108, how many neutrons does it have?a. 54 Atoms that vary in the number of neutrons found in their nuclei are called __________.d. isotopes Potassium has an atomic number of 19. What is its electron configuration?c. shells 1, 2 and 3 ...
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