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The mass of a proton is indeed approximately 2000 times the mass of an electron. To understand why this is the correct answer, it's important to know the fundamental properties of these subatomic particles.
A proton has a mass of about 1.67 x 10^-27 kilograms, while an electron has a significantly smaller mass of approximately 9.11 x 10^-31 kilograms. When you divide the mass of a proton by the mass of an electron, the result is around 1836. This value can be approximated to about 2000 for simplification in certain contexts, reflecting that the proton is over 1800 times heavier than the electron.
This substantial difference in mass is significant in various aspects of physics, including atomic structure and the behavior of matter. The large mass of the proton compared to the electron helps to stabilize the structure of atoms, with protons residing in the nucleus and electrons occupying regions around the nucleus at much lower mass and energy scales. Understanding these mass relationships is foundational in concepts like atomic mass and charge balance in chemistry and physics.