Ask Question
29 March, 17:57

If an atom has 12 protons, 13 neutrons, and 10 electrons, what is its mass number?

+4
Answers (1)
  1. 29 March, 19:12
    0
    25. Electrons are so small that they don't add, much if any, to the mass number. So you just add the protons and neutrons to get the rough estimate of the mass number.
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “If an atom has 12 protons, 13 neutrons, and 10 electrons, what is its mass number? ...” in 📘 Chemistry if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers