Ask Question
15 February, 00:54

What is a rule for determining the mass number of an atom or ion?

+4
Answers (1)
  1. 15 February, 03:54
    0
    The number of protons, neutrons, and electrons in an atom can be determined from a set of simple rules ... The number of electrons in a neutral atom is equal to the number of protons. The mass number of the atom (M) is equal to the sum of the number of protons and neutrons in the nucleus.
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “What is a rule for determining the mass number of an atom or ion? ...” in 📙 Physics if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers