Which of the following subatomic particles has a rest mass approximately equal to 1836 times the mass of an electron?

💡 Solution & Explanation

A proton is a subatomic particle with a positive charge whose rest mass is approximately 1.6726 multiplied by ten to the power of twenty-seven kilograms, which is roughly 1836 times heavier than an electron. Neutrons have a mass even closer to that of a proton but are electrically neutral, whereas positrons are the antimatter counterparts of electrons. This mass disparity ensures that atomic mass is heavily concentrated in the nucleus.