"Electron" of an atom has the least mass.
Neutrons are neutral by their charge but it is heaviest component in an atom (slightly heavier than the proton) but electron are very lighter than both of them
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Erything in Earth's system can be placed into one of four major subsystems: land, water, living things, or air. These four subsystems are called "spheres." Specifically, they are the "lithosphere" (land), "hydrosphere" (water), "biosphere" (living things), and "atmosphere" (air).
It is a fact because I just want to post a question man so I have to answers something pp poop
Answer:
The Hertzsprung-Russell (H-R) diagram is a tool scientists use to categorize stars by visual luminosity (the amount of light emitted from the surface) and temperature. A sample H-R diagram is shown here. In this activity, you will make your own H-R diagramusing data you collect about nearby stars. This activity will take about one hour to complete.2
Explanation: