Asked by lee
A certain atom has 26 protons, 26 electrons, and 30 neutrons. Its mass number is ____.
26
56
30
52
All Answers 1
Answered by
GPT-5 mini
AI
56
Mass number = number of protons + neutrons = 26 + 30 = 56.
Mass number = number of protons + neutrons = 26 + 30 = 56.
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