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Open QuestionRounded to the nearest whole number, how many electrons are in an atom of zirconium?477views
Open QuestionAn atom's mass number is 13 and its atomic number is 6. How many neutrons are in its nucleus?497views
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Open QuestionWhat is the atomic symbol and mass number for an atom containing 50 protons and 64 neutrons?756views
Open QuestionCarbon has an atomic number of 6. What can you conclude about carbon from this fact?483views