Question

What is Mass number? Explain with examples.​

Answer 1

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Mass number: It is the sum of the number of neutrons and the number of protons. For example, the atomic number of magnesium is 12 which is equal to the number of protons, the number of neutrons of magnesium is 12. The mass number is equal to 24 (12+12).

Answer 2

Answer:

mass is a number example magnig