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Chemistry 6 to 12

Question 18 of 30

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Competency 5—Knowledge of atomic theory and structure

DIRECTIONS: Read the question and select the best response.

An atom containing 50 protons, 50 electrons, and 69 neutrons has a mass number of

Choose an answer

50.
69.
119.
169.

Enter to expand or collapse answer.Answer expanded: Correct Response: C.