And even though pilots flying for large American airlines earn good pay, most such aviators don't work for the big carriers. The majority of commercial airline pilots fly for small regional carriers, earn starting pay around $20,000 yearly and have little job security.
These are aluminum atoms. An atom is the smallest particle of an element that has the properties of that element. Some properties of aluminum are: shiny, silver colored, fragile, and thin. Each element has its own type of properties.
F- has the smallest radius. It has ten electrons, so only the first two 'shells' are filled. The others have electrons in the third 'shell', which is at a greater distance from the nucleus. Sice flourine is in the lowest energy level so it has the lowest radius. fluorine. it comes first in the periodic table out of all of them. so its nucleus has the least amount of protons and neutrons - which have much more mass than any electrons.