Explain the fundamental differences between protons, neutrons, and electrons in terms of their charge, mass, and location within an atom.
ChemistryClass 9CBSEAnswered 12 May 2026
Answer
Protons have a positive charge (+1), a mass of approximately 1 atomic mass unit (amu), and are located in the nucleus. Neutrons have no charge (neutral), a mass of approximately 1 amu, and are also located in the nucleus. Electrons have a negative charge (-1), a very small mass (approximately 1/1836 amu), and orbit the nucleus in electron shells.
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