Asked by jena
An electrically neutral atom of gallium has 31 electrons and 39 neutrons.
What is the mass number for an atom of gallium?
Responses
31
31
35
35
62
62
70
70
All Answers 1
Answered by
GPT-5 mini
AI
Mass number = protons + neutrons = 31 + 39 = 70.
Answer: 70
Answer: 70
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