If an atom has 6 protons, 6 neutrons, and 6 electrons, what is its atomic number and mass number?
ChemistryClass 11CBSEAnswered 18 May 2026
Answer
Atomic number = 6, Mass number = 12.
Atomic number is the number of protons (6). Mass number is the sum of protons and neutrons (6 + 6 = 12).
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